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PWM Motor Speed Controller

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Uploaded by on Feb 13, 2010

Here is my 555 timer based PWM motor speed controller. This uses a MTP75N03HDL power MOSFET which is good for up to 75A and triggers at logic (+5V) levels, so it was a perfect fit for this circuit. The final application will be a 3/4HP 24V motor that will be going on an electric tractor/ go cart I will be building. Videos of that will be coming soon.

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  • it seems like you are controlling the frequency not the pulse width.

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