An adjustable high voltage USB power delivery supply #USB
Aylo writes on his blog:
A usb-pd that nobody wanted or asked for. However, I needed one.
When I say high voltage, I don’t mean 20V, I mean around 300V, for high-voltage DC needs like electrophoresis or electrowetting. This is a gratuitous and impractical project, since you can buy an electrophoresis power supply for about $100. However, I wanted to do a more compilated design, and I “needed” a test PCB for my hotplate, so I made this.
The goal of this project was to make something worthy of being a lab instrument, e.g. not completely unsafe, and not held together with string and gum. I want to “have it all” with this instrument and even more than that I wanted an excuse to use a lot of new parts and tools.
At the heart of this all is an RP2040. I’ve never used one of these (or micropython) but they have a pretty good hardware design guide and it looked simple enough to one-shot the design.
See more in the blog post here and the source here.
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