EEVblog

A practical demonstration of Lenz’s law and back EMF in an inductive relay coil and how to solve it using a Freewheeling/Flywheel/Flyback/Snubber/Clamp diode. Also the downsides of clamping diodes, and switch arcing supression. Also a look at an AMAZING potential phenomenon you probably haven’t seen before! Actually, two rather cool …

WiGL have raised almost 5 MILLION dollars on StartEngine. What’s worse than another wireless charging technology startup? – One that doesn’t really have any original technology and simply uses off the shelf RF energy harvesting chips! This one is just embarrassing. And they want to comepete with Energous, WiTricity, Ossia …

iFixit founder Kyle Wiens talking about Right to repair at the inaugural 2021 Australian Right to Repair summit. Dave also talk about the Right to Repair initiative and the Australian Government Productivity Commission Right to Repair Report just released. 00:00 – Dave talks about Right to Repair 05:32 – Kyle …

The conclusion of the DC circuit fundmentals tutorial series. How a capacitor and inductor works, parallel and series configurations, exponential rise and decay, time constants, and basic differential calculus. Energy storage in capacitors and inductors and how a collapsing inductor magnetic field can be both a problem and a benefit. …

A side-by-side teardown of the Focusrite Scarlett Solo and the Rode AI-1 USB audio interface. Podcast: Download