EEVblog No Script, No Fear, All Opinion

Dave tries to find a locally sourced replacement MOSFET for a dumpster repair and battles the RS Components and Element 14 wonky search engines and parametric search engines. Dave’s name was on a US government watch list: https://www.eevblog.com/2014/02/24/element-14-holding-orders-based-on-us-government-watch-list/ Forum: https://www.eevblog.com/forum/blog/eevblog-1387-mosfet-repair-replacement-search/ Podcast: Download

Dave looks a the effect of temperature on solar panel power output.

Why do Dave’s new 370W LG solar panels use lower rated 295W Enphase microinverters? What gives? Inverter clipping, solar panel overrating, DC/AC ratio, solar irradiance, and microinverter underrating explained. And a look at data from Dave’s old 3kW system to predict how many days a year the new 5kW system …

Dave explands his 3kW home solar power system to 8kW using new 370W LG NEON 2 panels and Enphase IQ7+ micro inverters! The complete installation video. Time lapse videos and other analysis videos to come on the EEVblog2 channel. Thanks to LG Australia, Enphase and Clenergy: https://www.lgenergy.com.au/uploads/download_files/1838242344c5c485f219a20564a1dee4d862355d.pdf https://enphase.com/en-au/products-and-services/microinverters/family Clenergy racking: …

Halve Your Processor Power Consumption using Diffusion Capacitance! Dave demonstrates a neat but tricky technique to PWM a processor’s power pin to reduce power consumption. https://en.wikipedia.org/wiki/Diffusion_capacitance MIT: http://web.mit.edu/6.012/www/SP07-L16.pdf Colorado University: http://ecee.colorado.edu/~bart/ecen3320/f99/pdf/ch4_4_5.pdf Forum: https://www.eevblog.com/forum/blog/eevblog-1384-halve-your-processor-power-consumption!/

It’s peltier thermoelectric generator TEG time again! This time the University of Colorado Boulder claim to have a new flexible TEG device you can stick on your skin that can power wearable and Internet of Things devices. It’s The Matrix! and the media are lapping it up. Can your body …

Dave offers some advice for a kid who spammed him his resume.

Teardown of the new Keysight EDU34450A 5.5 digit Bench Multimeter Forum: https://www.eevblog.com/forum/blog/eevblog-1382-keysight-edu34450a-5-5-digit-bench-multimeter-teardown/ HiRes teardown photos: Podcast: Download

What’s inside a 10kW linear power supply for a Coherent Skylight 300C 10W Argon Ion Laser? Teardown time! Daryl Tewksbury: https://theamphour.com/521-outdoor-laser-projection-object-mapping-with-daryl-tewksbury/ Forum: https://www.eevblog.com/forum/blog/eevblog-1381-10kw-argon-ion-laser-psu-teardown/ Podcast: Download

It’s an aussie barbie with fried IBM chips. Ken Shirriff’s blog: https://www.righto.com/ Forum: https://www.eevblog.com/forum/blog/eevblog-1380-bbq-ibm-chips/ Podcast: Download

Why does a handheld multimeter read zero volts and a bench meter reads several volts? It’s all about the NPLC’s man… Forum: https://www.eevblog.com/forum/blog/eevblog-1379-whats-all-this-nplc-stuff-anyhow/ Podcast: Download

Is the new Uni-T UT61E+ Multimeter still the bang-per-buck king the existing UT61-E was? How does it compare? Is the increased cost worth it? https://s.click.aliexpress.com/e/_AaRaJS https://s.click.aliexpress.com/e/_9foaZO And what about the ANENG AM870 at half the price? https://s.click.aliexpress.com/e/_AFiPjA Flickr photos: https://www.flickr.com/photos/eevblog/albums/72157718441411852 Forum: https://www.eevblog.com/forum/blog/eevblog-1378-new-uni-t-ut61e-multimeter/ Podcast: Download

WHY did someone chop the leads off and throw out a dumpster full of plugpacks? It’s a plugpack dumpster graveyard!

An ODYSEE EXCLUSIVE: Black Magic ATEM Mini Pro ISO production video switcher TEARDOWN

How long does it take for your 400mA multimeter fuse to blow at 600mA? Grab a chair and watch! The amazing unpredictability of fusing current ratings at low overloads. Forum: https://www.eevblog.com/forum/blog/eevblog-1377-the-amazing-unpredictability-of-fuses/ Podcast: Download