Tonight’s accomplishment is a working prototype of a desktop power supply that I’m building. It has four channels – 12V, 5V, 3.3V and a variable voltage channel. Now I need to transfer these breadboard circuits to a protoboard and find a suitable box to stuff it all in. When done, the front panel will have an On/Off switch, a adjustment dial, a display LED and banana jacks for the four power rails. I may also add a USB port for powering USB devices.
This is a pretty standard project for electronics beginners but it was fun to put it all together and not smoke, melt or toast anything. It actually worked on my first test, which is not exactly typical for me. 🙂