EEVblog

By David L. JonesTechnology Education

EEVblog episodes

March 31 EEVblog 1743 – Mechanical Vibration Detection with your Oscilloscope Probe
Dave shows you how to use your oscilloscope probe to detect mechanical vibrational modes on your PCB. And shows off the Crysound Acoustic Imaging Camera!
https://www.kickstarter.com/projects/pocket-acoustic-cam/crysound-pocket-acoustic-imaging-camera/
Forum: https://www.eevblog.com/forum/blog/eevblog-1743-mechanical-vibration-detection-with-your-oscilloscope-probe/
9 min
March 31 EEVblog 1742 – Today in the Dumpster Room
More Dumpster Diving. What did we score today?
Forum: https://www.eevblog.com/forum/blog/eevblog-1742-today-in-the-dumpster-room/
8 min
March 25 EEVblog 1741 – Mailbag!
More amazing Mailbag!
00:00 – BOOK Professional Electronic Design Best Practices, Volume II
06:01 – A Crusty Nautalytics Simple Compass
11:46 – DPS DIN Power Supply Modules
https://digitalpowersystems.eu/hdr20/
USB-AC-PD

20:22 – The Book: The Ultimate Guide to Rebuilding a Civilization
Forum: https://www.eevblog.com/forum/blog/eevblog-1741-mailbag/
28 min
March 16 EEVblog 1740 – Dumpster Diving Dell Laptop HAUL!
Looking at a dumpster diving Dell laptop HAUL! with Sagan!
Forum: https://www.eevblog.com/forum/blog/eevblog-1740-dumpster-diving-dell-laptop-haul!/
20 min
March 16 EEVblog 1739 – UNUSUAL FAULT! in a Beelink Ryzen 9 Mini PC
The Beelink EQR6 Ryzen 9 Mini PC mysteriously failed after an upgrade, why?
00:00 – This Beelink EQR6 failed just after an upgrade, WHY?
02:28 – Is is the flat flexes?
04:45 – Woah, what’s THIS?
07:17 – Nooooooooo! It can’t be…
Forum: https://www.eevblog.com/forum/blog/eevblog-1739-unusual-fault-in-a-beelink-ryzen-9-mini-pc/
15 min
March 07 EEVblog 1738 – Solar Freakin’ Roadways NEW FUNDING!
Everyone’s favorite Solar Roadway, the OG Solar Freakin’ Roadways is still going strong with NEW EQUITY FUNDING!
WeFunder: https://wefunder.com/solar.roadways.incorporated
StartEngine: https://www.startengine.com/offering/solar-roadways
US Army contract: https://www.highergov.com/contract/W5170122C0119/
Forum: https://www.eevblog.com/forum/blog/eevblog-1738-solar-freakin-roadways-new-funding!/
17 min
March 07 EEVblog 1737 – Alex Lidow: Inventor of the Power MOSFET
A chat with Alex Lidow, the inventor of the original Power MOSFET and HEXFET at International Rectifier.
Former CEO of International Rectifier (founded by his father!), and now Founder & CEO of EPC (Efficient Power Conversion) that make the most efficient GaN FET’s on the market.
https://epc-co.com
We cover everything from inventing the power MOSFET on his first day on the job to silicon physics and AI data centres and humanoid robots.
00:00 – Alex Lidow
05:08 – What’s the definition of an Engineer?
06:07 – Inventing the Power MOSFET 400V/1ohm first day on the job with Tom Herman
09:16 – The flash of brilliance: Inject charge into the region
10:36 – Steve Wozniak and the Apple IIE PSU
12:02 – IRF100 and IRF130 HEXFET
14:18 – 42 Competitors!
15:54 – Major Innovations in MOSFET’s
17:00 – CoolMOS from Siemens
18:23 – TrenchMOS from Vishay
19:17 – Silicon Carbide started as a diode
21:46 – 2D Electron Gas (2DEG)
24:40 – Silicon MOSFET game is won by the deepest pockets
25:09 – Getting fired from IR and starting Starting EPC
26:28 – Get that damn Gallium out of my Silicon fab!
29:31 – Integrated GaN Solutions
31:03 – The physics of Radiation Hardening in MOSFET’s
34:23 – The market for high voltage transistors
36:00 – The 200V and under MOSFET market is performance driven
39:13 – Protecting Patents in China is EASIER than in the US!
41:41 – AI Data centres and NVIDIA modules
44:46 – 800V AI power module architecture
47:42 – Multi level DC-DC topology ISOP
49:46 – Frequency trade-off in LLC DC-DC converter design
56:13 – Humanoid robots
58:16 – What is the most popular GaN?
59:24 – Buyouts?
01:00:36 – Evaluation Boards
01:03:34 – Darkening the digital sky
Forum: https://www.eevblog.com/forum/blog/eevblog-1737-alex-lidow-inventor-of-the-power-mosfet/
1 hr 5 min
March 07 EEVblog 1736 – TOP 5 Jellybean MOSFET’s
What are the TOP 5 Jellybean MOSFET’s?
00:00 – MOSFET vs BJT
02:21 – What is a Jellybean?
04:14 – 2N7002 N-Channel wimpy generic
13:10 – BSS84 P-Channel wimpy generic
14:47 – AO3400 N-Channel SOT-23
21:30 – Continuous Current vs Pulse Current Rating and SOA Graph
24:15 – AO3401 P-Channel SOT-23
25:56 – AO4410 N-Channel SO-8 High Current
30:10 – AO4407 P-Channel SO-8 High Current
31:18 – IRLML2502 N-Channel Low Gate Voltage
33:51 – IRLML6401 P-Channel Low Gate Voltage
34:15 – IRLZ44 N-Channel Big Package
37:21 – IRF510 Special Mention
37:37 – IRF4905 P-Channel Big Package
Jellybean Playlist: https://www.youtube.com/playlist?list=PLvOlSehNtuHtdQF-m5UFZ5GEjABadI3kI
Forum: https://www.eevblog.com/forum/blog/eevblog-1736-top-5-jellybean-mosfets/
40 min
February 25 eevBLAB 138 – The AI Supply Chain is INSANE
Nobody truly understands the complexity of modern supply chains for the technology we take for granted. How the AI supply chain works, from ChatGPT to sugercane
https://aisupplychain.vercel.app/
https://x.com/chiefofautism
Forum: https://www.eevblog.com/forum/blog/eevblab-138-you-dont-understand-supply-chains!/
18 min
February 20 EEVblog 1735 – Power Rail Probing & Oscilloscope DC Offset EXPLAINED
How to measure DC power rail high bandwidth waveforms with the offset control on your oscilloscope. Active Probes, Passive Probes, Z0 probes, and specific DC Power Rail Probes are compared.
00:00 – How to measure power rails with Active Probes and Power Rail probes
08:03 – Signal Skew
09:54 – 10:1 Passive Probe
10:18 – Example of an 8 bit scope with no offset adjust
10:39 – Trap for young players. Input referred offset.
12:41 – Cheap DIY Z0 Probe
14:41 – Offset range changes based on V/div, don’t be fooled.
16:48 – Rigol Scopes
17:20 – Siglent Scopes & How models differ
18:53 – Why the complete opposite between Keysight/R&S and Rigol/Siglent?
PRP1: https://www.eevblog.com/forum/testgear/prp1-low-cost-2ghz-power-rail-probe/
Power Rail Probe DIY project in Silicon Chip:
https://www.siliconchip.com.au/Issue/SC/2025/November
Forum: https://www.eevblog.com/forum/blog/eevblog-1735-oscilloscope-dc-offset-explained/
22 min