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An open loop Pulse Width Modulated speed and direction controller for use with brushed dc motors up to 1.5A. Using the on board potentiometer it is easy to adjust direction and speed; with the potentiometer set full CW the motor turns clockwise at full speed, simply rotating the potentiometer to full AC will rotate the motor anticlockwise at full speed. Positioning the potentiometer at 50% will stop the motor. Operating from a 7-24Vdc input voltage this controller uses PWM adjustment running at 20Khz to provide high quality speed control. The motor will see an average voltage proportional to the length of the pulses it is receiving – speed is increased by lengthening the pulse. The Speed Controller has a small footprint measuring just 63x46mm.
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General Specification |
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