I'd like to run a 2.5 HP permanent magnet DC motor in (approximately) "constant horsepower" mode, where the speed varies inversely with the load. Commercial motor controllers like to regulate speed instead!
I think I basically just need a constant-current supply. Any designs for a regulated-current DC supply that can push about 18A into a variable inductive load that takes 50V to 130V? Input is a house circuit: single phase 120 or 240 VAC. I don't think the output waveform cleanliness is very important, since motor controllers seem to get away with all kinds of waveform mutilation at higher frequencies using SCRs, PWM, etc.
Thanks,
Len
I think I basically just need a constant-current supply. Any designs for a regulated-current DC supply that can push about 18A into a variable inductive load that takes 50V to 130V? Input is a house circuit: single phase 120 or 240 VAC. I don't think the output waveform cleanliness is very important, since motor controllers seem to get away with all kinds of waveform mutilation at higher frequencies using SCRs, PWM, etc.
Thanks,
Len