/diy/ - Do It Yourself

>>2032854
the low voltage versions are abundant and usually priced within a factor of 2 of straight non-RRIO LM324 clones. I imagine them being used extensively in mobile devices and IoT crap
I designed a lighting project a while back where the driver IC already used a high-side current sensor, but the input control voltage law was poorly specified, I couldn't drive the driver IC with digital PWM because of flicker, and I wanted to measure and monitor the load voltage and current (and cooling, etc.) with a micro. the venerable picrel circuit was perfect to translate the current reading from 42V world to the low side

>>2032870
if it works, it works. what isn't working? do you want current limiting? (apply it after the fact with a small circuit) better regulation? (get a better wall wart) is it a form factor or connector issue? (build a front panel on your bench with banana jack posts, or pick up one of those breadboard-mounted barrel jack + regulator boards)