Quote:
Originally Posted by BrianG
All our BL motors would spin just fine on straight house A/C, provided it was 3ph and the voltage was a "tad" lower. The issue comes when we want speed control. Can't simply reduce the voltage since that would create tons of heat (operating much like a linear regulator), so you have to either vary the A/C sine wave frequency and/or the DC pulse duty cycle to change the speed. Problem is these aren't the most simple things to make.
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I am not sure on this, but wouldn't you have to have some type of capacitor start for a BL motor? They are Synchronous motors after all. Correct me if I'm wrong.
