Howdy,
I have an application where I am designing a simple speed controller for a 12VDC brush motor (pump). The motor draws approx 6 amps continuous when running, depending on the load. I have the electronic schematic all nailed down for driving the pump, but I need to set the optimum PWM frequency for the motor that I am using. Can anyone refer me to a nice text that discusses optimum PWM frequency choice for optimum efficiency, etc. I assume that it is dependent on the motor inductance, etc and I would like to research this matter fully. I've found a few texts that touch on the topic, but none that delve into it.
Any suggestions would be appreciated. Thank you, frenchy