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Curated by: Tristan Eversole (1024 videos)
Get Opera here: https://opr.as/07-Opera-browser-benmakeseverything I built this portable Lab-Bench Power Supply, small enough to fit in your pocket. It runs on a lithium-ion battery, and can supply anywhere from 0.8 to 22 volts! Chapters: 00:00 Intro 01:34 USBC Power 03:06 Opera 04:36 Battery Charging 06:27 Design Iterations 07:36 Fuel Gauge Problems 09:58 Adjustable Regulator 10:45 Microcontroller 11:43 Current Sensing 12:30 The Prototype 13:37 Extra Features 14:40 PCB Design 15:44 Case 16:32 Testing It Out 18:59 Closing Thoughts This device uses a TPS25730 for USBC power, a BQ25792 for battery charging, TPS55289 for regulating voltage, and two INA226 chips for current monitoring. Output is protected by a TPS25947. The displays are: HCMS-2973 (Green), HCMS-2974 (Orange). Open Source Github project (WIP): https://github.com/BenMakesEverything/Pocket-Lab-Power-Supply