3Amps DC Motor Speed & Direction Controller Using LMD18201 & 555 Timer

The circuit shown here are a DC Motor Speed and Direction Controller. Driver can handle DC Motor Load Up to 3Amp and DC supply 12V to 48V DC, The board is based on LMD18200 which is H-Bridge driver & 555 Timer IC generate PWM signal for speed control. Slide provided for direction Control. PWM duty cycle 10% 95%.

The LMD18201 is a 3A H-Bridge designed for motion control applications. The device is built using a multi- Shorted Load Protection technology process which combines bipolar and Internal Charge Pump with External Bootstrap CMOS control circuitry with DMOS power devices on Capability the same monolithic structure. The H-Bridge configuration is ideal for driving DC and stepper motors. The LMD18201 accommodates peak output currents up to 6A.

  • Motor Supply 12V 48V DC
  • Motor Load 3Amp 12V 48V DC
  • Logic Supply 5V DC
  • SW1 : Slide Switch To Change the Motor Direction CW/CCW
  • Duty Cycle 10% To 95%
  • Frequency 5Khz Approx.
  • Potentiometer Speed Adjust
  • LED Power Indicator

Note : J1 Jumper Close For Normal Operation.

 

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