EEVblog 1561 - µSupply USB Power Supply - Part 21

Part 21 of the uSupply USB power supply design. An update on where the project got to and why. A look at the working unit, PCB and schematic. Design series Playlist: Forum: 00:00 - The final prototype µSupply, it’s been a while! 01:36 - It’s actually a working product 02:50 - The story of why it wasn’t released 03:34 - Teardown 05:33 - Old prototype 07:04 - Multiple processors and USB Power Delivery 08:03 - Evolution of the Banana Jacks 08:50 - Old vs New Prototype 10:11 - The LCD is gorgeous 11:36 - The Schematic 12:34 - The secondary side ST ARM micro 13:22 - Altium and Modular Electronics RANT 15:43 - The Primary Side ST ARM Micro and the USB Power Delivery RANT 19:00 - UART isolation 19:44 - Main isolated switching conveter with custom Planar Transformer 20:33 - Some old prototype concept renders 21:41 - Choose Your Fighter! Keypad vs Up/Down Interface 24:14 - Custom Planar Transformer 25:47 - Tracking Switching Pre-Regulator 27:16 - Not Recommended For New Design 28:03 - Output Constant Voltage and Constant Current Regulation Circuit 31:59 - µSupply history and Leo Simpson Silicon Chip story 34:18 - The PCB 36:19 - Conclusion If you find my videos useful you may consider supporting the EEVblog on Patreon: Or with crypto: BTC: 33BsprBQNBtHuVzVwDmqWkpDjYnCouwASM ETH: 0x68114e40ff4dcdd384750500501e20acf3875f8c BCH: 35n9KBPw9T7M3NGzpS3t4nUYEf9HbRmkm4 USDC: 0x68114e40ff4dcdd384750500501e20acf3875f8c LTC: MJfK57ujxy55su4XicVGQc9wcEJf6mAoXF Web Site: Other channels: EEVblog2: EEVdiscover: T-Shirts: #ElectronicsCreators #uSupply Теги: eevblog,video,rd tech,power supply,power supply design,psu,psu design,usupply,µsupply,usb power supply,portable power supply,pocket power supply,schematic,design,product design,pcb,custom power supply,constant voltage,constant current,lab power supply