Functional prototype is here

A project log for PocketPD - USB-C Portable Bench Power Supply

Leveraging the Programmable Power Supply (PPS) of USB PD 3.0 and 3.1 to make an ultra-compact bench power supply

centylabCentyLab 04/19/2024 at 21:270 Comments

After a long wait from our PCB vendor, the boards are already here. This is the first batch to confirm our wiring, mechanical test, electrical and thermal performance.

It is good news that the wiring is all good. The board boots up with some code modification from the previous design. We can work more on the mechanical design but overall it will FIT inside a case!

The port layout works a bit better than we expected. The buttons' spring force and height are just right. The screen height is low enough not to shadow the button labels.

The initial thermal test shows that the output switch selected is good for 3A continuous. We will also move the location of the status LED so that it can be used at night without being too bright.

The next step for these 4 boards is to design a case for them. Let us know if you want to be our beta user and explore the application with USB PPS!