Hi,
i was just pondering on how should I make a variable lab supply, when I had the idea that I could use one of my old amp builds I have lying around unused.
What I got is a stereo ~300W amp running on +/- 30Vdc I think, so it should work perfectly for reasonable currents. I will have to disable the DC servo though, but that is just a minor complication..
The only problem I face is that I would love to have it current limited. Do you have any ideas how to easily incorporate that into a typical AB amp, i.e. how would you go about controlling the input signal voltage based on the output current?
i was just pondering on how should I make a variable lab supply, when I had the idea that I could use one of my old amp builds I have lying around unused.
What I got is a stereo ~300W amp running on +/- 30Vdc I think, so it should work perfectly for reasonable currents. I will have to disable the DC servo though, but that is just a minor complication..
The only problem I face is that I would love to have it current limited. Do you have any ideas how to easily incorporate that into a typical AB amp, i.e. how would you go about controlling the input signal voltage based on the output current?