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PWM DC motor driver and control with SG3525

 For additional information and resources on PWM DC motor drivers see the Links below...

This PWM DC Motor driver circuit is ideal for the accurate control of DC motors as well as other applications like lighting levels and small heaters etc. The circuit converts a DC voltage into series of pulses, such that the pulse duration is directly proportion to the value of the DC voltage. The great advantage of such a circuit is that almost no power is lost in the control circuit.

 This PWM DC motor driver circuit protects against overload and short circuit, SG3525 PWM range can be adjusted from 0-100%, PWM frequency is 100HZ-5KHZ adjustable. Operation voltage from +8V~ 35V, minimum current consumption is about 35mA. Maximum current can go up to 6.5A. Efficiency better than 90% at full load.

The functions of three trim pots are as follow:

bullet  VR1: setting the minimum output voltage
bullet  VR3: setting the maximum output voltage
bullet  VR2: setting the output frequency.

 For additional information and resources on DC motor drivers see the Links below...

All the parts in this project can be purchased from us. If you need help or have any comments on this project, please email us at info@wzmicro.com

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