Podcasts about mosfets

This week's EYE ON NPI is a follow up to one we did a few years ago on the similarly-named BQ25792 (https://blog.adafruit.com/2021/05/06/eye-on-npi-ti-bq25792-i2c-controlled-1-4-cell-5a-buck-boost-battery-charger-eyeonnpi-adafruit-digikey-adafruit-digikey-txinstruments/). The BQ25798 (https://www.digikey.com/short/vnr279pz) builds on the '92 by adding selectable dual inputs and true MPPT solar support. This chip is inexpensive, powerful and can handle almost any battery and power source matching you desire. Let's look at some specifications: High power density, high integration buck-boost charger for 1-4 cell batteries supporting USB PD 3.0 profile – Integrates four switching MOSFETs, BATFET – Integrates input and charging current sensing Highly efficient – 750-kHz or 1.5-MHz switching frequencies – 5-A charging current with 10-mA resolution 96.5% efficient: 16-V battery at 3A from 20V Supports a wide range of input sources Autonomously sampled open circuit voltage (VOC) maximum power point tracking (MPPT) for charging from a photovoltaic panel – 3.6-V to 24-V wide input operating voltage range with 30-V absolute maximum rating – Detects USB BC1.2, HVDCP and non-standard adapters Dual-input power mux controller (optional) Narrow voltage DC (NVDC) power path Backup Mode with Ultra-fast switchover to adjustable voltage Powers USB port from battery (USB OTG) – 2.8-V to 22-V OTG output voltage with 10-mV resolution to support USB-PD PPS – OTG output current regulation up to 3.32 A with 40-mA resolution Flexible autonomous and I2C mode for optimal system performance Integrated 16-bit ADC for voltage, current, and temperature monitoring Like the '92, the BQ25798 (https://www.digikey.com/short/vnr279pz) supports any size battery. We have lots of battery packs in the Adafruit shop, and in particular we use 1S batteries – if there are more batteries, they are wired in series. But there's lot of folks who are building robotics that require higher voltages, so they have 2S, 3S, or 4S batteries. This charger can handle any of 'em, and you can configure the battery pack size using a simple resistor on the PROG port. In this case it also allows the chip to run in 'standalone' mode without the use of I2C to configure. The biggest improvement you get with the BQ25798 (https://www.digikey.com/short/vnr279pz) is true solar MPPT support. The BQ25792 had VINDPM and IINDPM – the ability to track the input voltage to make sure it is not drooping from overdraw. While this lets you get pretty-close-to-MPPT it isn't true power-point-tracking which requires perturbation around the voltage to adjust as light and temperature affect the solar panel's efficiency. The '98 does this 'right' and even has a K Factor adjustment register - you can tweak this to get the best results based on different weather/temperature (https://www.ti.com/video/6287049638001)- or stick to the default value for good results. Another new feature is 'selectable dual-inputs' what this means if you can set up two power inputs - say DC plug and Solar - and then have the chip switch between them. This is particularly useful because you can't just use two OR'ing diodes to select the power source: the solar panel might have a higher initial open-voltage but can't supply as much current as a DC plug. I2C lets you select which one is priority! The BQ25798 (https://www.digikey.com/short/vnr279pz) also has many of the cool features we liked in the BQ25792: On-The-Go mode where you can turn the buck-boost around and have it generate a variable voltage output, say 5V for powering other USB devices. Another thing that works is powering over USB where you can have the BQ negotiate 'high voltage' support from USB 3 ports. Note that this isn't USB Type C power negotiation, for that you'll want to get a separate USB Type C PD negotiation chip like the TPS25750D (https://www.tij.co.jp/jp/lit/ml/slpp103/slpp103.pdf)...we're hoping there's a future version with PD built in! There's also a built in 16-bit ADC that you can use to monitor various voltages and current draw. While you can charge the battery in 'standalone' mode - you really do need I2C to get the best performance and capabilities. Thankfully there's not a huge number of registers, and SDA/SCL can be 3 or 5V logic signals so you should be able to get it working on anything from an ATmega328 to a Raspberry Pi. We like the high integration: you really only need a few passives and an inductor to get a fantastic all-in-one charger for any lithium ion battery pack. If you're intrigued and would like more information, you've come to the right place! DigiKey has the BQ25798 (https://www.digikey.com/short/vnr279pz) in stock right now for immediate shipment. Order today and you can start designing your solar-powered products of the future by tomorrow afternoon.

The STSPIN32G0 is the first three-phase BLDC controller embedding an STM32G0 and a triple-half bridge gate driver capable of driving traditional power MOSFETs and IGBTs.

Brian, Blake, and Richard are joined by the legendary Jay Leonard J for Episode 514 of the Chasing Tone PodcastWe start off with some exclusive hair clipping tips from the super talented Jay Leonard J and this eventually turns into a discussion about gain clipping and Wampler's latest release, the Wampler Mofetta. Brian had an idea one day. He loved the Ibanez MT-10 Mostortion but wondered what would happen if he used MOSFETS for clipping. The Mofetta is the culmination of his rumination!  Brian asks Jay about his creative process when it comes to pedal demos and he gives us an awesome candid insight into his flow. Is the Tubescreamer the ultimate wingman pedal? Jay thinks so and has a compelling case to consider and Blake is in an educating mood. Are you a fan of the Beach Boys? A number of cool products were released in the last week that were officially licensed by the Beach Boys and the guys discuss them. Richard asks Jay about his musical career and he tells us a wonderful tale of how it all began with a special guitar. Jay takes us on an international journey with his early career before he tells us about how an unconventional piece of equipment became part of his demo rig and how he became a stunt double for the top martial artist in Hong Kong.You are not going to want to miss this episode, Jay is hilarious and hugely interesting, and he joins us on Patreon too for some amazing stories that involve international diplomatic peril!  Shaving heads, Brian is awesome, Blake is a heathen, Richard Rants, Baby monitors, Album release news, Velvet Fuzz...it's all in this week's Chasing Tone!Thanks to all our supporters - you are awesome!We are on Patreon now too!Support the show (https://www.patreon.com/chasingtonepodcast)Awesome Course, Merch and DIY mods:https://www.guitarpedalcourse.com/https://modyourownpedal.com/Find us at:https://www.wamplerpedals.com/https://www.instagram.com/WamplerPedals/https://www.facebook.com/groups/wamplerfanpage/Youtube:https://www.youtube.com/channel/UCdVrg4Wl3vjIxonABn6RfWwContact us at: podcast@wamplerpedals.comSupport the Show.

In today's episode, Philip Zuk, senior VP of business development and marketing at Transphorm, will provide insights into the latest breakthroughs in power systems and GaN semiconductor technology, as well as an exciting development from Transphorm known as SuperGaN. Transphorm and other companies, such as Nexperia, manufacture normally-off cascode devices. A primary benefit of this configuration strategy is the backward compatibility of the gate drive with silicon MOSFETs. Join us as we explore the competition between silicon, SiC and GaN, promising consumers more efficient, cost-effective systems in the tech landscape.

For our NeoPixel signal to analog LED converter design, we need to convert 3 open drain PWM outputs to drive N-channel sinking MOSFETS. To do that we'll need to invert the signal - but we don't have a ton of space. So let's source a triple-NOT gate that has push-pull output, and can run from 3 or 5V logic. We also want it to be small, but not TOO small! See the chosen part on DigiKey - https://www.digikey.com/short/tmdnp712 Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

During our PowerUP virtual conference, we had an exceptional lineup of speakers and companies. The main topics covered include wide bandgap, superjunction MOSFETs and other power design trends. In this podcast, you will hear the voices of Alex Lidow, CEO of EPC; Guy Moxey, senior director of Power Products at Wolfspeed; Victor Veliadis, executive director and CTO of PowerAmerica; Johannes Schoiswohl, business line head EPIC at Infineon; Stephen Oliver, VP of corporate marketing and investor relations at Navitas; Mrinal K. Das, senior director of Technical Marketing of Advanced Power Division at onsemi; Hubie Noto, director of marketing at Silanna Semiconductor; and Filippo Di Giovanni, innovation and key programs manager of the Power Transistor MACRO Division at STMicroelectronics. Let's discuss power trends in different industry applications. 

We're going full throttle into the world of airsoft in Texas, its surging popularity and the unique imprint it leaves on veterans transitioning back to civilian life. We're setting up camp in various fields across Texas, including the D14, 878, and the Evike Outpost. Not to mention, we've got Scott Hollenbeck, the Airsoft YouTube sensation and former San Antonio resident, who gives us an inside scoop on his potential return to Texas. Fasten your seatbelts as we navigate the journey of introducing kids to airsoft. From cleaning and maintaining their weapons to understanding the evolution of Airsoft, we've got it covered! We're trading screwdrivers and springs for MOSFETs, unraveling the good, the bad, and the downright hilarious, like that time a player got hit where it hurts with a HPA MG 42. We also brush on safety, maintenance, and some memorable field stories that'll leave you in stitches. As we arm up for Copperhead in New Mexico, we take a moment to reflect on our personal airsoft experiences. Ever wondered about the benefits of reliable CO2 pistols for airsoft, particularly in chilly weather? We've got answers! Plus, we pay homage to Novritch and his pivotal role in advancing the industry. Join us as we embark on this thrilling journey, filled with tales from our trips to North Korea, the USS St Louis, and Dubuque. Our airsoft saga is one you definitely don't want to miss!Support the showThank you everyone for the support. Don't forget to leave a rating on whatever podcast app you listen to this on. It helps get this suggested to others with similar interests. Watch all of our podcasts here YouTube https://www.youtube.com/@TriFectaAirsoft/videos AnchorFM https://spotifyanchor-web.app.link/e/01jFx7ebrxb Rumble https://rumble.com/c/TriFectaAirsoft Join YT Channel https://www.youtube.com/@TriFectaAirsoft/membership

In this podcast with Steven Shackell, director of global supplier management at Arrow Electronics, we will introduce the upcoming PowerUP Expo agenda. The main topics to be discussed at PowerUP include wide bandgap, the next generation of superjunction MOSFETs, power management trends and applications like electric vehicles and motor control. Reserve your seat now at powerup-expo.com.

In this episode of The EEcosystem Podcast, our guest is Dr. Alex Lidow, CEO and co-founder of Efficient Power Conversion and the co-inventor of the HEXFET, power MOSFET, and eGaN. Lidow holds degrees from Caltech and Stanford. He earned a Ph.D. in applied physics from Stanford University in 1977 as a Hertz Foundation Fellow. In this episode, we will find out more about Alex and learn about MOSFETs and the rise of GaN. How did MOSFETs grow so quickly? What technologies are driving GaN adoptions and why. We will also discuss the potential obstacles to GaN adoption. This and many more questions will be answered as we go along! Listen to this episode to learn more!     TIMESTAMP 00:00 - Introduction 01:51 - Who is Dr. Alex Lidow 05:25 - Learn more about MOSFETs 08:07 - Where is MOSFET technology today? 15:38 – GaN trajectory in 2023 21:04 - The reason for the growth 28:56 - Did the technology have a supporting ecosystem? 31:08 – Adoption barriers that were encountered 33:19 - How does the team support engineers onboarding GaN? 35:57 - Dr. Alex's thoughts about education and advice for students. 45:13 - Where can you learn more?   EPC Website   GaN Design Support   GaN talk support forum   Text books and Publications   Connect with Alex Lidow on LinkedIn Connect with Judy Warner on LinkedIn     #ecosystem #growth #electronic #engineering #MOSFET #GaN #AlexLidow #electromagnetism #electromechanical   Sponsor Resource Links:   Visit The EEcosystem Website For a Free Download of a sample chapter of Ken Wyatt's EMC  troubleshooting and receive a free 90-day subscription to all of Eric Bogatin's training at The Signal Integrity Academy   For SI/PI/EMI News and Technical Resources and to register for a free subscription visit the Signal Integrity Journal today.   For free Technical Resources and to Learn more about Keysight Pathwave EDA Software Solutions visit the homepage now.   For all of your high-speed and RF connectors visit the Samtec website and access excellent engineering resources while you there.    For high complexity EDA solutions visit SIEMENS EDA Website   Visit the SIGLENT website to learn more about their test and measurement solutions For Every Bench. Every Engineer. Every Day.    Picotest specializes in high-fidelity testing and measurement tools, primarily for power-related applications. Visit their website for more product information and excellent training materials from expert Steve Sandler. For Custom RF and MW PCBs visit the Transline Technology Website to learn more. Visit Summit Interconnect for all your PCB manufacturing needs.   For PCB stack-up modeling solutions visit Avishtech.com  

GaN power devices should be the ideal choice for power conversion applications in space because they are more robust than hard rad MOSFETs when exposed to various forms of radiation. The electrical and thermal performance of GaN has also demonstrated superior operation in a space environment. In this podcast, Bel Lazar, Chief Executive Officer of EPC Space, will analyze the importance of GaN for the space industry. Bel Lazar brings 30+ years of experience in the semiconductor, aerospace, and defense technology fields. In addition to his role as CEO of EPC Space, Bel currently serves as COO of Efficient Power Conversion (EPC).

MEP EP#332: This Podcast Intentionally Left BlankUSB-C will be mandatory for phones sold in the EU ‘by autumn 2024' The rule will apply to other electronic devices including tablets, digital cameras, headphones, handheld video game consoles, and e-readers Laptops will have to comply with the rule at a later date What about laptops and devices that fall out of the 100W? USB “Extended Power Range” or EPR for 240W of power More Voltage 48V from 20V as max, still 5A Are there any USB Type-C connectors rated for the 48V yet? Stretching Stainless Stencils? PART 2 Continuation of last weeks topic Ended up being that ⅓ of the panels had poor copper registration from the PCB manufacturer Project: SNACKEY PCBs ordered from OshPark Parts ordered from Mouser Drop in Mosfets to replace TIP 102 and TIP 107? IRL510 for N-channel IXTP76P10T for P-channel Time to Say Goodbye, Floppotron 2.0 The stack of floppy drives, harddrives, and scanners is finally being put to rest after 6 years Supposively Floppotron 3.0 is coming soon though! The Floppotron: Doom E1M1 - At Doom's Gate Prep your boards! Some things to consider when preparing your designs to send to your CM Part placement Edge is the wrong place to put parts for many many reasons Leave room for fiducials Provide a Stackup - we are regularly asked for that File naming - use a common naming system or provide info on which files are which Do no provide every layer your EDA tool exports, some are blank!

For this episode of the eTech podcast Ryan Maughan speaks to Dr Craig Fisher from MaxPower Semiconductor. As the Semiconductor shortage is still causing significant disruption in the automotive world we thought it would be good to find out some more from someone with expert knowledge of wide band gap semiconductor devices.Craig is the UK Managing Director of Max Power Semiconductor, a US based company that specialises in the design and supply of advanced Silicon Carbide based MOSFETs for power switching applications.Craig did a PhD at the University of Warwick looking at the design of semiconductor devices then went on to a number of exciting roles in industry. He has been working with Max Power since 2020 helping them expand into the European market.Ryan and Craig talk about SiC devices and future technology developments that will affect that industry. To find out more check out the podcast!Dr Craig Fisher LinkedIn profile: https://www.linkedin.com/in/craig-a-f-26518212/Max Power corporate website: https://maxpowersemi.com/Ryan Maughan LinkedIn profile – https://www.linkedin.com/in/ryan-maughan-a2893610/eTech website – https://www.etech49.com

In this episode of the SoundStage! Audiophile Podcast, hosts Brent Butterworth and Dennis Burger dig into a new album by David Chesky called Graffiti Jazz, a unique and fascinating jazz composition that comes with separate mixes for speakers and headphones. From there they transition into a discussion about Dirac Live's new Auto Target Curve and how it potentially improves some aspects of room correction, as well as how it could be improved even more. As an aid to new listeners who've complained about overuse of terms like hertz and kilohertz without explaining what these mean, we've also included a few tone sweeps to illustrate the frequency ranges being discussed.  To wrap things up, Brent and Dennis dig into two new articles about GaN FETs vs. MOSFETs and what they mean for class-D amplifiers, which gives them a perfect opportunity to dispel some myths about class D.  Sources: Graffiti Jazz (David Chesky) [Digital Download]: https://theaudiophilesociety.com/products/graffiti-jazz-david-chesky-digital-download "David Chesky's New New Revolution in Headphone Sound" by Brent Butterworth: https://www.soundstagesolo.com/index.php/features/329-david-cheskys-new-new-revolution-in-headphone-sound "Dirac Introduces New Dirac Live Auto Target Curve" by Joao Martins: https://audioxpress.com/news/dirac-introduces-new-dirac-live-auto-target-curve "This One Room-Correction Trick Could Breathe New Life into Your A/V Receiver" by Dennis Burger: https://www.soundstageaccess.com/index.php/feature-articles/1109-this-one-room-correction-trick-could-breathe-new-life-into-your-av-receiver "NAD C 399 Integrated Amplifier-DAC Review" by Dennis Burger: https://www.soundstageaccess.com/index.php/equipment-reviews/1179-nad-c-399-integrated-amplifier-dac "Voice for True Wireless Earbuds, GaN, and More Exciting Audio Frontiers in audioXpress April 2022": https://audioxpress.com/news/voice-for-true-wireless-earbuds-gan-and-more-exciting-audio-frontiers-in-audioxpress-april-2022 "The Peachtree Audio GaN400: A New Breed of Class D Amplification" by Jacob Green: https://www.audioholics.com/amplifier-reviews/peachtree-audio-gan400

Chris and Dave take a look at the changing nature of employment for engineers in the pandemic era. Also searching for new MOSFETs, solar farms, smart grid, and blowing up capacitors!

What is the nature of innovation? Is it overhearing a conversation as with Morse and the telegraph? Working with the deaf as with Bell? Divine inspiration? Necessity? Science fiction? Or given that the answer to all of these is yes, is it really more the intersectionality between them and multiple basic and applied sciences with deeper understandings in each domain? Or is it being given the freedom to research? Or being directed to research? Few have as storied a history of innovation as Bell Labs and few have had anything close to the impact. Bell Labs gave us 9 Nobel Prizes and 5 Turing awards. Their alumni have even more, but those were the ones earned while at Bell. And along the way they gave us 26,000 patents. They researched, automated, and built systems that connected practically every human around the world - moving us all into an era of instant communication. It's a rich history that goes back in time from the 2018 Ashkin Nobel for applied optical tweezers and 2018 Turing award for Deep Learning to an almost steampunk era of tophats and the dawn of the electrification of the world. Those late 1800s saw a flurry of applied and basic research. One reason was that governments were starting to fund that research. Alessandro Volta had come along and given us the battery and it was starting to change the world. So Napolean's nephew, Napoleon III, during the second French Empire gave us the Volta Prize in 1852. One of those great researchers to receive the Volta Prize was Alexander Graham Bell. He invented the telephone in 1876 and was awarded the Volta Prize, getting 50,000 francs. He used the money to establish the Volta Laboratory, which would evolve or be a precursor to a research lab that would be called Bell Labs. He also formed the Bell Patent Association in 1876. They would research sound. Recording, transmission, and analysis - so science. There was a flurry of business happening in preparation to put a phone in every home in the world. We got the Bell System, The Bell Telephone Company, American Bell Telephone Company patent disputes with Elisha Gray over the telephone (and so the acquisition of Western Electric), and finally American Telephone and Telegraph, or AT&T. Think of all this as Ma' Bell. Not Pa' Bell mind you - as Graham Bell gave all of his shares except 10 to his new wife when they were married in 1877. And her dad ended up helping build the company and later creating National Geographic, even going international with International Bell Telephone Company. Bell's assistant Thomas Watson sold his shares off to become a millionaire in the 1800s, and embarking on a life as a Shakespearean actor. But Bell wasn't done contributing. He still wanted to research all the things. Hackers gotta' hack. And the company needed him to - keep in mind, they were a cutting edge technology company (then as in now). That thirst for research would infuse AT&T - with Bell Labs paying homage to the founder's contribution to the modern day. Over the years they'd be on West Street in New York and expand to have locations around the US. Think about this: it was becoming clear that automation would be able to replace human efforts where electricity is concerned. The next few decades gave us the vacuum tube, flip flop circuits, mass deployment of radio. The world was becoming ever so slightly interconnected. And Bell Labs was researching all of it. From physics to the applied sciences. By the 1920s, they were doing sound synchronized with motion and shooting that over long distances and calculating the noise loss. They were researching encryption. Because people wanted their calls to be private. That began with things like one-time pad cyphers but would evolve into speech synthesizers and even SIGSALY, the first encrypted (or scrambled) speech transmission that led to the invention of the first computer modem. They had engineers like Harry Nyquist, whose name is on dozens of theories, frequencies, even noise. He arrived in 1917 and stayed until he retired in 1954. One of his most important contributions was to move beyond printing telegraph to paper tape and to helping transmit pictures over electricity - and Herbert Ives from there sent color photos, thus the fax was born (although it would be Xerox who commercialized the modern fax machine in the 1960s). Nyquist and others like Ralph Hartley worked on making audio better, able to transmit over longer lines, reducing feedback, or noise. While there, Hartley gave us the oscillator, developed radio receivers, parametric amplifiers, and then got into servomechanisms before retiring from Bell Labs in 1950. The scientists who'd been in their prime between the two world wars were titans and left behind commercializable products, even if they didn't necessarily always mean to. By the 40s a new generation was there and building on the shoulders of these giants. Nyquist's work was extended by Claude Shannon, who we devoted an entire episode to. He did a lot of mathematical analysis like writing “A Mathematical Theory of Communication” to birth Information Theory as a science. They were researching radio because secretly I think they all knew those leased lines would some day become 5G. But also because the tech giants of the era included radio and many could see a day coming when radio, telephony, and aThey were researching how electrons diffracted, leading to George Paget Thomson receiving the Nobel Prize and beginning the race for solid state storage. Much of the work being done was statistical in nature. And they had William Edwards Deming there, whose work on statistical analysis when he was in Japan following World War II inspired a global quality movement that continues to this day in the form of frameworks like Six Sigma and TQM. Imagine a time when Japanese manufacturing was of such low quality that he couldn't stay on a phone call for a few minutes or use a product for a time. His work in Japan's reconstruction paired with dedicated founders like Akio Morita, who co-founded Sony, led to one of the greatest productivity increases, without sacrificing quality, of any time in the world. Deming would change the way Ford worked, giving us the “quality culture.” Their scientists had built mechanical calculators going back to the 30s (Shannon had built a differential analyzer while still at MIT) - first for calculating the numbers they needed to science better then for ballistic trajectories, then with the Model V in 1946, general computing. But these were slow; electromechanical at best. Mary Torrey was another statistician of the era who along with Harold Hodge gave us the theory of acceptance sampling and thus quality control for electronics. And basic electronics research to do flip-flop circuits fast enough to establish a call across a number of different relays was where much of this was leading. We couldn't use mechanical computers for that, and tubes were too slow. And so in 1947 John Bardeen, Walter Brattain, and William Shockley invented the transistor at Bell Labs, which be paired with Shannon's work to give us the early era of computers as we began to weave Boolean logic in ways that allowed us to skip moving parts and move to a purely transistorized world of computing. In fact, they all knew one day soon, everything that monster ENIAC and its bastard stepchild UNIVAC was doing would be done on a single wafer of silicon. But there was more basic research to get there. The types of wires we could use, the Marnaugh map from Maurice Karnaugh, zone melting so we could do level doping. And by 1959 Mohamed Atalla and Dawon Kahng gave us metal-oxide semiconductor field-effect transistors, or MOSFETs - which was a step on the way to large-scale integration, or LSI chips. Oh, and they'd started selling those computer modems as the Bell 101 after perfecting the tech for the SAGE air-defense system. And the research to get there gave us the basic science for the solar cell, electronic music, and lasers - just in the 1950s. The 1960s saw further work work on microphones and communication satellites like Telstar, which saw Bell Labs outsource launching satellites to NASA. Those transistors were coming in handy, as were the solar panels. The 14 watts produced certainly couldn't have moved a mechanical computer wheel. Blaise Pascal and would be proud of the research his countries funds inspired and Volta would have been perfectly happy to have his name still on the lab I'm sure. Again, shoulders and giants. Telstar relayed its first television signal in 1962. The era of satellites was born later that year when Cronkite televised coverage of Kennedy manipulating world markets on this new medium for the first time and IBM 1401 computers encrypted and decrypted messages, ushering in an era of encrypted satellite communications. Sputnik may heave heated the US into orbit but the Telstar program has been an enduring system through to the Telstar 19V launched in 2018 - now outsourced to a Falcon 9 rocket from Space X. It might seem like Bell Labs had done enough for the world. But they still had a lot of the basic wireless research to bring us into the cellular age. In fact, they'd plotted out what the cellular age would look like all the way back in 1947! The increasing use of computers to do the all the acoustics and physics meant they were working closely with research universities during the rise of computing. They were involved in a failed experiment to create an operating system in the late 60s. Multics influenced so much but wasn't what we might consider a commercial success. It was the result of yet another of DARPA's J.C.R. Licklider's wild ideas in the form of Project MAC, which had Marvin Minsky and John McCarthy. Big names in the scientific community collided with cooperation and GE, Bell Labs and Multics would end up inspiring many a feature of a modern operating system. The crew at Bell Labs knew they could do better and so set out to take the best of Multics and implement a lighter, easier operating system. So they got to work on Uniplexed Information and Computing Service, or Unics, which was a pun on Multics. Ken Thompson, Dennis Ritchie, Doug McIllroy, Joe Assana, Brian Kernigan, and many others wrote Unix originally in assembly and then rewrote it in C once Dennis Ritchie wrote that to replace B. Along the way, Alfred Aho, Peter Weinber, and Kernighan gave us AWSK and with all this code they needed a way to keep the source under control so Marc Rochkind gave us the SCCS, or Course Code Control System, first written for an IBM S/3370 and then ported to C - which would be how most environments maintained source code until CVS came along in 1986. And Robert Fourer, David Gay, and Brian Kernighan wrote A Mathematical Programming Language, or AMPL, while there. Unix began as a bit of a shadow project but would eventually go to market as Research Unix when Don Gillies left Bell to go to the University of Illinois at Champaign-Urbana. From there it spread and after it fragmented in System V led to the rise of IBM's AIX, HP-UX, SunOS/Solaris, BSD, and many other variants - including those that have evolved into the macOS through Darwin, and Android through Linux. But Unix wasn't all they worked on - it was a tool to enable other projects. They gave us the charge-coupled device, which resulted in yet another Nobel Prize. That is an image sensor built on the MOS technologies. While fiber optics goes back to the 1800s, they gave us attenuation over fiber and thus could stretch cables to only need repeaters every few dozen miles - again reducing the cost to run the ever-growing phone company. All of this electronics allowed them to finally start reducing their reliance on electromechanical and human-based relays to transistor-to-transistor logic and less mechanical meant less energy, less labor to repair, and faster service. Decades of innovation gave way to decades of profit - in part because of automation. The 5ESS was a switching system that went online in 1982 and some of what it did - its descendants still do today. Long distance billing, switching modules, digital line trunk units, line cards - the grid could run with less infrastructure because the computer managed distributed switching. The world was ready for packet switching. 5ESS was 100 million lines of code, mostly written in C. All that source was managed with SCCS. Bell continued with innovations. They produced that modem up into the 70s but allowed Hayes, Rockewell, and others to take it to a larger market - coming back in from time to time to help improve things like when Bell Labs, branded as Lucent after the breakup of AT&T, helped bring the 56k modem to market. The presidents of Bell Labs were as integral to the success and innovation as the researchers. Frank Baldwin Jewett from 1925 to 1940, Oliver Buckley from 40 to 51, the great Mervin Kelly from 51 to 59, James Fisk from 59 to 73, William Oliver Baker from 73 to 79, and a few others since gave people like Bishnu Atal the space to develop speech processing algorithms and predictive coding and thus codecs. And they let Bjarne Stroustrup create C++, and Eric Schmidt who would go on to become a CEO of Google and the list goes on. Nearly every aspect of technology today is touched by the work they did. All of this research. Jon Gerstner wrote a book called The Idea Factory: Bell Labs and the Great Age of American Innovation. He chronicles the journey of multiple generations of adventurers from Germany, Ohio, Iowa, Japan, and all over the world to the Bell campuses. The growth and contraction of the basic and applied research and the amazing minds that walked the halls. It's a great book and a short episode like this couldn't touch the aspects he covers. He doesn't end the book as hopeful as I remain about the future of technology, though. But since he wrote the book, plenty has happened. After the hangover from the breakup of Ma Bell they're now back to being called Nokia Bell Labs - following a $16.6 billion acquisition by Nokia. I sometimes wonder if the world has the stomach for the same level of basic research. And then Alfred Aho and Jeffrey Ullman from Bell end up sharing the Turing Award for their work on compilers. And other researchers hit a terabit a second speeds. A storied history that will be a challenge for Marcus Weldon's successor. He was there as a post-doc there in 1995 and rose to lead the labs and become the CTO of Nokia - he said the next regeneration of a Doctor Who doctor would come in after him. We hope they are as good of stewards as those who came before them. The world is looking around after these decades of getting used to the technology they helped give us. We're used to constant change. We're accustomed to speed increases from 110 bits a second to now terabits. The nature of innovation isn't likely to be something their scientists can uncover. My guess is Prometheus is guarding that secret - if only to keep others from suffering the same fate after giving us the fire that sparked our imaginations. For more on that, maybe check out Hesiod's Theogony. In the meantime, think about the places where various sciences and disciplines intersect and think about the wellspring of each and the vast supporting casts that gave us our modern life. It's pretty phenomenal when ya' think about it.

Welcome to the Electromaker show, episode 26! This week saw an Arduino CLI update, the Banana Pi BPI-M5 SBC hit shelves, and a new maker board, the Hackboard 2, has been revealed. Check out these maker, tech, DIY, IoT, crowdfunding, and embedded updates! Watch the episode! We publish a new show every week. Subscribe here. Don't have time to watch the show? Listen to the Electromaker Show in podcast format! Electromaker Show Episode 26 Highlights Lidar and Unity on iPhone Raspberry Pi auto analog film scanner Amazon Alexa on the Raspberry Pi More multiplexing on Arduino Great Scott! video on MOSFETs and drivers Hackboard 2  Pi IoT 2 Arduino CLI update Banana Pi BPI-M5 announced

This video can be seen at: https://www.piworld.co.uk/2020/11/09/a-tech-deep-dive-into-silicon-carbide-for-investors/   An hour's deep dive into silicon carbide (SiC) market, to summarise what investors should know. Here Dr Peter Gammon, who is an Associate Professor at the University of Warwick, talks about the power electronics market, technical characteristics of silicon carbide, suitability of silicon carbide for high voltage applications, issues and challenges in producing SiC devices and the most important companies in the SiC supply chain. Introduction and Q&A by Jay Malik, a tech investor. Dr Peter's Background - 2:46 The Power Devices Market - 03:20 Power Device Design Requirements - 08:34 Technical Characteristic And Applications - 13:00 Why Silicon Carbide? - 19:42 Issues, Cost and Threat from GAN - 21:31 SiC Supply Chain - 28:55 Major Substrate Suppliers - 32:01 Epi-Wafer Suppliers - 33:44 Chip Manufacturers - 34:50 Applications Companies & OEMs - 37:25 Research at Warwick - 40:14 SiC Clean Room at Warwick - 42:55 SiC Consultancy Services - 43:56 Q&A - 45:05 About Dr Peter Gammon Dr Peter is an Associate Professor at the University of Warwick. He has been researching Silicon Carbide Power devices for about 15 years. He has published a number of papers and leads a group of 8 researchers working on future applications of silicon carbide in areas like Satellites and grid level applications. His research covers silicon carbide as a material, SiC devices (IGBTs, MOSFETs, Schottky Diodes), applications and clean room manufacturing techniques. Visit his profile on https://warwick.ac.uk/fac/sci/eng/people/peter_gammon for more info.

 Power electronics has undergone an interesting change towards new Wide-bandgap (WBG) semiconductors (WBG). Significant impact factors for the growth of the WBG semiconductor market include the growing demand for improved energy efficiency and increased demand for long-life batteries.In power electronics, gallium nitride (GaN) and silicon carbide (SiC) wide bandgap semiconductors are used as a solution to slow down Silicon in high temperature and high power segments. GaN device manufacturers' rapid progress in material and process technologies has resulted in significant improvements in both performance and cost of products for several applications.In this podcast our focus is to go in deep toward GaN with Alex Lidow, CEO and co-founder of EPC, Efficient Power Conversion, and Dinesh Ramanathan CEO & co-founder (co- faunder) of NexGen Power Systems Inc. Wide-bandgap semiconductor materials offer devices the ability to operate at high voltages, temperatures, and frequencies. As the demand for these electronic devices is proliferating, the demand for wide-bandgap semiconductors tends to increase steadily. GaN is a high bandgap material that allows devices to operate at higher temperatures and withstand higher voltages compared to silicon. GaN transistors are significantly faster and smaller than silicon MOSFETs. The performance of GaN shows that efficiency and performance have improved significantly, leading to several new applications that were not possible with silicon technology.Moreover, GaN's higher dielectric breakdown allows building thinner and therefore, lower resistance devices. Lower characteristic RDS(on) leads to smaller devices with lower capacitance. Vertical GaN devices are capable of switching at higher frequencies and operating at higher voltages.Vertical GaNis capable of operating at high breakdown voltage which enables Vertical GaN to power the most demanding applications, like Data Center Server power supplies, Electric Vehicles, solar inverters, motors, and high-speed trains.

In this episode of Moore's Lobby, Dave sits down with two engineers about power design in the automotive space.  You'll hear about how ignoring the holistic system in favor of high efficiency can mean too much of a good thing. You'll learn about IGBTs vs. MOSFETs in the automotive space. And you'll also pick up snippets about why single-sourced new components are forbidden fruit and why it's important to acknowledge that copper's not getting any more efficient. Thermal management, EMI, switching losses, oh my! This episode is full to the brim of the technical details practicing EEs crave.

If you enjoy the sound of vacuum tubes but wish for the longevity of solid state, can MOSFETS help?

“EYE on NPI” with Maxim's Himalaya uSLIC Step-Down Power Module https://www.digikey.com/en/product-highlight/m/maxim-integrated/himalaya-uslic-step-down-power-module What is EYE on NPI? The acronym NPI stands for New Product Introduction and sometimes you’ll also see NPD (New Product Development). EYE on NPI will showcase, spotlight, and discuss the latest new products and announcements from the entire component industry. EYE on NPI will help engineers go from prototype to market and get important information on pricing and availability. The more you know, the more you can reduce time-to-market, the more you increase the quality of the product(s) and reduce production costs! Adafruit releases dozens of new products per month. We live, eat, and breathe datasheets and we wanted to share our NPI process with everyone: how we get to market quickly, and what the latest NPIs are out there. We're always on the lookout for new techniques and parts for power supplies and management - so this week's EYE on NPI takes a look at some MAXIM integrated buck converter chip/mini-modules, which they call the Himalaya uSLIC™ Step-Down Power Module set. These tiny and easy-to-use modules take 4.5-36V DC in and give you 0.9V-12V adjustable output at 1 Amp with no fuss. "The Himalaya series of voltage regulator ICs and Power Modules enable cooler, smaller and simpler power supply solutions. Easy-to-use, step-down power module that combines a switching power supply controller, dual n-channel MOSFET power switches, fully shielded inductor, and the compensation components in a low-profile, thermally-efficient, system-in-package (SiP)." Power supplies are the silent workhorses of electronics design - they take the abuse of over/under voltages, short circuits, noisy and unstable inputs and do all that clean up for you so you've got clean regulated power. They're not glamorous, but a good power supply setup will make the rest of your design a breeze. Bad power supplies will give you very confusing results - flaky wireless, bad sensor readings, brownouts, or worse - damaged components! We've seen some of these 'all in one' integrated buck converters before, they're sometimes even sold as pin-compatible 'LM7805' replacements. In particular we're seeing these pop up on small development, wearables or eval boards - partially because they're so small and also because they're incredibly easy to use. You only need half-a-dozen passives to get the MAXM17632 going, even less for the fixed-output MAXM17630 and MAXM17631. No inductors, MOSFETs, compensation path - everything's internal. You can get A few external ceramic capacitors and resistors are all you need. It even comes with some nice extras like an under-voltage lockout, adjustable switching frequency (400KHz - 2.2MHz) and a powergood/reset output that can keep your system from booting up during start-up. These modules are tuned and efficient, especially since every component is tightly integrated, so you will reduce thermal emissions as well. Check out this nifty thermal camera live demo video by Maxim. We picked these parts because we have encountered projects where the power supply needs to be super small, super efficient, reliable and the additional cost of an external module did not affect the BoM #eyeonnpi #maxim #digikey

MEP EP#199: High Voltage Gyrators and KiCad PluginsParker 50V power pack update Managed to safely remove the cells Protection circuit is functioning correctly One of the 4 banks is “bad” Scrapping all the 18650’s for future projects Helping Ben debug the Atari Junior 2600 Single Chip system Atari 2600's typically have 3 main ICs 6507 CPU RIOT (RAM and I/O) TIA (Graphics and Sound) Air Raid Siren all printed Needs final fitment and assembly to be completed! Stephen Rackmount case Designed a rackmount case for a 1u preamp New v-score bend method that works great on aluminum A mixture of chamfer and cut relief Can be bent by hand Back to Gyrators 300V 4 band EQ using high voltage Mosfets as gyrators Gyrators first mentioned on Episode 173 of the MEP Wanted to solve the issue of not having to make more power supply rails About +/- 12is db per band 80hz, 220hz, 750hz and 2k R.F.O. KiCad Action Plugins Run your KiCad Python scripts direct inside the UI now! RF tools - a very cool curved trace plugin Parker's major complaint about Zoom Centering in KiCad hasn't been an issue for atleast 2 years now Why did no one tell Parker :( EE Web - now with more TOOLS! All about Arrow More EDA tools then you can shake a stick at! Apple H1 Chip? Silly marketing wank Its just a custom MCU

Grenades, Mosfets, AIRPLANE GOGGLES! When is innovation for innovation's sake too much? We follow some products down a rabbit hole and see where it takes us this week on The Safe Zone!

Electronic Components Shortages, or part shortages are so big that it impacts nearly every aspect of electronics design and manufacture. Lead times continue to rise no matter how fast parts are being produced. It is just not possible for production to catch up. The reality of this current shortage means it’s time to be innovative, and guest John Watson has some ideas to help including an expert tip Altium Designer users can put to good use. (Hint: ActiveBOM can help!) Listen in to get background on the electronic component shortage, what pro PCB designers are doing to address the concern proactively and stay ahead of PCB component shortages.   Show Highlights: Shortages first started with capacitors - specifically with multi-layer ceramic capacitors (MLCC) MLCCs  - 3 trillion created a year but the supply is still not meeting demand This is a major crisis in the industry and its spreading The part shortages are so big, it impacts every aspect. Shortages affecting: Board sensors, MOSFETs (metal-oxide semiconductor field-effect transistors), Resistors and Transistors. Previously unaffected supply chain areas are now being affected. No matter how fast these are being produced, not possible for production to catch up. There are three industries driving the high demand that is leading to part shortages: IoT - estimated 20 billion new IoT devices in next few years Mobile phone - 1.5 trillion mobile phones in next year. 1,000 capacitors in each phone. Automotive - 2,000 - 3,000 capacitors in regular / 22,000 capacitors estimated in electric car - as newer technologies are being pulled into regular automatic cars, just think of all the electronics i.e. safety features, automatic parking, etc.   New automotive organization: AEC - Automotive Electronic Council is putting out standards that will be required for their components. Why? Because... More rigorous components are needed in order to perform in harsh environments. Almost 50% of those components have fallen out, or failed, to meet their tests.   On the component / part manufacturing side: Converting lines from large components to smaller ones because not many people buying them. Manufacturers shutting down entire lines so they can produce more popular sizes. On the vendor side: Vendors have moved towards part allocation - big companies get first in line for parts. “You can only buy parts with if you have bought with us in the past year” - this is allocation. Once a company is in allocation, they begin to stockpile components. What kind of lead times are most common right now: Short lead time - 16 weeks Medium - 32 weeks Long - 80 weeks   What makes this part shortage so different? Mainly a market driven shortage, that cannot be pinpointed to a specific material shortage It’s almost an ‘emotional shortage’ where people may be hoarding more than they need. The extended duration of it is also unlike previous shortages. It’s a scenario where the market compounded onto itself with its reaction to it. HOT TIP: The next big thing is Broadband Satellite. SpaceX and low flying satellites to make everybody wireless. This is huge, it’s a lot of hardware. Component Shortage Hacks to get through the Crisis: Overall, be as proactive as possible. Evaluate common design guidelines and step out of them. For example, can we change the norm values, parameters and tolerances? It doesn’t always require the most stringent guideline, there is room for adjustment, depending on the type of device and requirements. Be proactive, for example run your schematic through ActiveBOM and get flags on what components are not recommended. Don’t wait until layout, do it early on. You can also use Octopart, there are other free services. Leverage your procurement organization, give them the heads up with difficult components so they can be aware of the situation in advance. Create multiple footprints for designs. No single sourcing for components, don’t get tied into a single organization.   Where do you source parts or find out about availability during the shortage? Read the quarterly reports to get the latest, look at the numbers, watch the trend. Keep aware of the issues i.e. part availability reports Texas Instruments also has a lot of information.   PCB Component Shortages and using ActiveBom: “ActiveBOM came out just in time. It has been the go to tool for us.” Now we run legacy products through ActiveBOM. Links and Resources: John Watson Podcast on PLM and Library management OnTrack article about Part Shortages Watch John Watson clips on Youtube Download the latest Altium Designer 19 today.  

This week we talk about Mosfets, face planting, winter wear, the first Speedy Feet Meet ride out, the next ride out, to buy a cheap wheel or not to buy a cheap wheel and money gets given to charity.....and lots more!

Power Systems Design, Information to Power Your Designs

Power Systems Design, Information to Power Your Designs

Rich Nass, one half of the Embedded Insiders, returned from the Applied Power Electronics Conference (APEC) last week. There, he was surprised to learn that semiconductor companies are no longer evaluating digital power or Silicon Carbide (SiC) and Gallium Nitride (GaN) power MOSFETs. They are actually already on their second and third generation of products. Tune in for more.

Hans could use some help. Luckily, Connie is here to save the day! Join them at Circuit Playground and learn how MOSFETs can use small signals to control high powered devices. Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe Join our weekly Show & Tell on G+ Hangouts On Air: http://adafru.it/showtell New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Hans could use some help. Luckily, Connie is here to save the day! Join them at Circuit Playground and learn how MOSFETs can use small signals to control high powered devices. Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe Join our weekly Show & Tell on G+ Hangouts On Air: http://adafru.it/showtell New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

interdependence [andrzejek’s F.I.F.L.A.R. Mix] - divisor/; Theory - No Appetite For Arduino Pie Yet; I Won't - K-Gizzle, A'pastrophy - Soy Sauce Control, Tabulasa - Broke For Free; Geeknotes: 10/16 - W4tB feat. Laura Winton @ Uncharted Books, Chicago, 10/18 - Human Rights Happy Hour @ SF ACLU, 10/20 - MOON Reading at Little Indie Press Festival, Chicago, 10/20 - Flash Fiction Night @ Alley Cat Books; Practice - SStone 5.X, 3V Battery; Something Elated - Broke For Free

Power Systems Design, Information to Power Your Designs

Power Systems Design, Information to Power Your Designs

In this episode Travis, Max, and Brian discuss why Solid State technology sounds great in pedals, but not ideal in amplifiers. Other discussions include how to land that Endorsement Deal and how Record Deals work. http://www.wamplerpedals.com/podcast/ for podcast subscription, or go to http://www.wamplerpedals.com/subscribe to be notified of new podcasts and videos that are uploaded to this channel. 1:35 – Max’s Answers To The Universe 3:40 – Solid State Technology In Amps Vs. Pedals 4:30 – Tech Talk 5:50 – JFets, Mosfets, and 12AX7s 9:35 – Travis’ Blues Junior 14:10 – Puppy Cuddles And Starlight 17:10 – Amp Shows 24:00 – Endorsement Deals 26:00– How To Land A Record Deal 29:30 – How To Land An Endorsement Deal 31:30 – Blem Season 35:40 – Don Grosh Guitars Find us at: http://www.WamplerPedals.com http://www.Facebook.com/WamplerPedals http://www.Twitter.com/WamplerPedals http://www.Instagram.com/WamplerPedals http://www.Facebook.com/ChasingTonePodcast http://www.Instagram.com/ChasingTonePodcast

Gallium nitride (GaN) is one of the technologies that could well displace silicon MOSFETs in the next generation of power transistors. As silicon approaches its performance limits, GaN devices conduct better and switch faster. But GaN devices don’t behave the way silicon power devices do. That’s the reason for the recently published textbook GaN Transistors for Efficient Power Conversion, 2nd Edition. Written by power industry veteran Dr. Alex Lidow along with Johan Strydom, Michael de Rooij, and David Reusch, this book serves as a practical guide for understanding basic GaN transistor construction, characteristics, and applications. In this short podcast, Alex Lidow talks about areas where engineers have trouble grasping the differences between GaN and silicon power devices. Alex Lidow is CEO and co-founder of Efficient Power Conversion Corporation (EPC). In 1977 he joined International Rectifier as an R&D engineer. In 1978 he co-invented the HEXFET power MOSFET, a power transistor that launched the modern power conversion market. Lidow finally became International Rectifier’s CEO and held that position for 12 years. Dr. Lidow holds many patents in power semiconductor technology, including basic patents in power MOSFETs as well as in GaN FETs. In 2004 he was elected to the Engineering Hall of Fame. Dr. Lidow earned his Bachelor of Science degree from Caltech in 1975 and his Ph.D. from Stanford in 1977.

Power Systems Design, Information to Power Your Designs