It couldn’t be simpler but you have to admit that a small adjustable portable power supply like this one will be really handy. The main part of the PSU is an LM317 linear voltage regulator which ...

Reusing the LM4041 voltage regulator to create a precision current source by leveraging the CATHODE pin as a sense pin.

He added an MIC29152WT adjustable voltage regulator so that he’s not limited to the fixed voltages of the psu. As a final touch he added an external voltage probe which can be used with the fli ...