EEVblog 1561 - µSupply USB Power Supply - Part 21

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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: https://www.youtube.com/playlist?list=PLE37A0E6F75C37452

Forum: https://www.eevblog.com/forum/blog/eevblog-1561-usupply-usb-power-supply-part-20/

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

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schematic
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