Please help me, im currently working on an active magnetic bearing (AMB) project on which im required to design a current power amplifier and its control circuit:
the specifications are: 40-60Vdc input
5A continuous & 10A peak
Red LED=2kHz & Green LED=1kHz
control circuit: 1volt to 1A output increase in amplifiers output
They are Natioal Semiconductor power amplifiers. You have to add a current control loop however. And I wonder, how LED colours are related to a current amplifier?
Is it possible to use a PID controller to control the Current power Amplifier via a PWM generator? for current control loop, i will use a currrent transducer which will feed the actual current to my PID controller for any necessary rectifications. is it wise to do so?