I wasn't satisfied with the stock 1800RPM speed of this motor, so I decided to do a little "overclocking" the DIY way. For the first half of the video, what you see is the motor being ramped up from 100Hz to 300Hz sinewave at 125VAC. This is a synchronous type AC induction motor, so increasing the frequency also increases the rotational speed. The second half of the video shows the setup for this experiment. At 2:14 you can see the bulk of what is used. A high powered audio amplifier sits on top of a 24VDC 30A power supply, on the left side you can see a toroidal transformer, this is being used in reverse to step-up the output from the amplifier into something usable for the motor. 17V bumped up to about 125V. Later, you can see the PC screen with oscilloscope and arbitrary waveform generator. The program is called SoundARB, is free and allows you to use your sound card as a function generator up to about 20kHz.
Keywords: AC, motor, powerful, computer, VFD, variable, frequency, drive, overclocking, overspeeding
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