Hi guys,
I wanted to convert a Permanent Magnet DC(PMDC) Motor into a servo motor. But now with more information about PMDC motors I have some ideas and may be you can correct them.
a) Since PMDC Motors get very hot and try to self destruct them in continous operations, I thought why not use a seperately excited DC motor which has constant field flux and also linear characterstics like a PMDC motor.
b) What about using a Universl Motor(the ones that run on both AC & DC) as a servo motor.Did someone try anything like this.
c) Windshiled wiper motors seem to be available in both PMDC type and field winding type.What if I use the PMDC motor type for a servo.Will it be suitable for such operations and long runs.Or should I detach the field winding and give a seperate excitation so that it can run longer without the affects of loosing torque due to loss of magnetism in the Permanent magnets.
BTW I am ready to use either a linear servo amplifer(Hi-Fi Audio Amplifier) or a PWM Chopper controller.
Thank You, prizark.