(Kit - Soldering Required)

dc motor contoller
(Click Image to Enlarge)

DC Motor Speed Controller

Vary the speed of your DC motor with this inexpensive circuit. Gear boxes can be costly and series resistors may cause stalling and overheating. This circuit delivers the voltage to DC motors with pulses and the speed is controlled via pulse-width modulation (PWM).  Also see our Bi-Directional DC Motor Controller


  • L: 4" W: 2-3/8" H: 1-3/4".
  • DC Motor Speed Controlled via a potentiometer.
  • Speed control for DC motors up to 100 Volts @ 7.0Amps without sacrificing motor torque.
  • Uses NE556 to pulse-width modulate IRF530N MOSFET.
  • This DC Motor controller can handle up to 16Amps, but PCB trace capacity would have to be beefed up with some hookup wire where DC motor current runs through the Printed Circuit Board.
  • Requires operating voltage of 9 - 18 VDC.
    (Need a Power Supply?)
  • Plastic case for DC motor controller circuit is included.

This PWM DC motor controller circuit can be used for generating hydrogen, build your own fuel cell station.  More common uses include controlling DC motors in golf carts, buggies, RC cars, robotics, DC hobby motors, toy DC motors, etc.

See CK1400.pdf for complete details, including schematic and theory of operation.  Requires Adobe Acrobat Reader available at www.adobe.com for FREE!

Note: This is a kit, you will receive parts to build the item pictured.  If you do not know how to solder you can check out our learn to solder kit. CK1400 - DC Motor Speed Controller - $24.95

See our Assembled & Tested DC Motor Speed Controller Here

Quantity and Educational discounts?


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