I have 6 AC shaded pole induction motors that I'd like to power and control the speed of using a function generator on my smart phone or laptop for the input signal and using an amplifier to power the fans. The motors are 120v 60hz and approx. 40w each. I plan on controlling the speed by reducing the hz and v down to maybe 35hz 90v or so. I have an older component stereo receiver/amplifier I have been playing around with. I have a few questions, mainly:
-Am I better off using a component amplifier like I have been playing around with or a car audio type? -If I go with a car audio type, am I better off with a two channel amp, or a bass style amp which would be more in the hz range of what I'm trying to do? -Is there a better/cheaper amp available to do what I'm trying to do? -Most amps are rated at 4 or 8 ohm (speaker rating) for the output watts. I do not know how to convert this to what I'd need to power motors. -Will an amp accurately produce a sine wave generated from a function generator? If not, will it be accurate enough to power motors?
This is a 4 channel (bridgeable to 2 channel) amp I have considered. I'd probably try to power 3 motors each with each channel.
This is a project my son and I have been playing around with and as you may or may net have been able to tell we're both learning as we go. I'll come up with a few more questions if anyone can chime in here. TIA!