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Old 28th April 2009, 12:58 PM   #1
Clipped is offline Clipped  Thailand
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Default 3 phase amplifiers possible?

seems like there needs to be some reinnovation in car audio nowadays since there hasnt been any in a long time.

i can design 3 phase solenoid type electrical generators, which looks like a speaker motor, resembling in looks a single phase motor.

BUT is there anyway to design a 3 phase amplifier to drive it?

3 phase motors are much more efficient than single phase motors, is there anyway to implement this into the audio world?

reinnovate, lets think of some ways to change the audio world.

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Old 28th April 2009, 01:32 PM   #2
djQUAN is offline djQUAN  Philippines
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run each signal of a three phase oscillator into three separate channels. then the outputs of each channel drives the load "three way bridged".

I don't know how you intend to make "three phase music" signals.
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Old 28th April 2009, 11:56 PM   #3
ppia600 is offline ppia600  United States
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There are only two phases in audio so there's no need for another. Always good to try and think of new ideas though
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Old 29th April 2009, 03:43 AM   #4
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Your speaker would have to have three separate voice coils, electrically (magnetically) spaced 120 degrees apart. That would be a feat !

Rather than efficiency, the real benefit to three phase motors is that they produce a net torque that is exactly a constant. Single phase motors have pulsating torque. Pulsating torque creates problems as you increase the horsepower (mechanical abuse, vibration, etc), thus the need for three phase motors when you go much above 1 or 2 hp.

This benefit is kind of immaterial when you talk audio transducers, I think, in that we don't need constant torque for a speaker.
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