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Bi-directional DC Motor Speed Controller
(Kit or Assembled)
motor controller kit allows controlling the speed of a DC motor in
both the forward and reverse direction using pulse-width modulation (PWM). The range of
DC motor control is from fully OFF to fully ON in both directions.
Turning the pot in the other direction causes the DC motor to spin in the opposite direction. The center position on the
pot is OFF, forcing the motor to slow and stop before changing direction.
See our one direction
DC Motor Controller.
- L: 3-3/4" W: 1-5/8" H: 1".
- Motor Speed Controlled via a potentiometer.
- For DC motors 12 to 32 Volts DC @ 5 Amps as
constructed. The IRFZ44 Mosfets
can handle up to a maximum 49Amps, but PCB trace capacity would have
to be beefed up with some hookup wire (underneath the PCB) soldered
between the MOFSET pins and the screw terminal blocks. If you
are running beyond 5 Amps and the MOFSETS are getting hot, bigger
heatsinks should be used. You can also dissipate heat with a
cooling fan directed over the heat sinks.
- Requires operating voltage of 6 - 32 VDC.
(Need a Power Supply?)
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.
K166.pdf for complete
details, including schematic and theory of operation. Requires
Adobe Acrobat Reader available at