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Last Updated on: Friday, March 12, 2010 12:08 PM

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555 Timer Forms Simple PWM Motor Controller
Using a CMOS version of the 555 timer, this circuit can be used to control the speed of a motor by adjusting the duty cycle of the pulses sent to the motor.
 

Click on Drawing Below to view PDF version of Schematic

Circuit Simplr PWM Controller Circuit designed by Dave Johnson, P.E. (June 30, 2006)

Master Schematic Category List  -  David A. Johnson, P.E.
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