After finding a download of the circuit diagram for his CSI3003X-5 supply he was able to ... which is normally used to set the power supplies’ constant current limit anyway.

How easy is that? An LED tester can be as easy as a constant-current power supply, and in fact that’s what [Dave]’s first LED tester was, in essence. Set an LM317 circuit up to output 10mA ...

Keeping a grid running is a constant and highly complex balancing act. Gradually restoring one is a huge challenge for ...