The following circuit is a PWM motor control provides many controls for the DC motors. The DC motor can be controlled to rotate forward, reverse, or break until it stops. Figure below shows the schematic :

PWM motor control 1 circuit schematic diagram

PWM motor control 2 circuit schematic diagram

MOSFETS bridge is used in the circuit to drive the motor. It is controlled by some logic gates and small bipolar transistors. At maximum, the current should be 8 amps and the motor voltage can be 10-20 volts. Proper heat sink is useful for the MOSFET as it easily getting hot. The V+  input should be supplied with the DC motor’s operating voltage (10-20 Volts).  Although the MOSFET is designed for 100 Volt operation, you can only use maximum voltage of 20 Volt because the voltage is also used for driving the gate, that is normally limited to 20 Volts. The minimum value for this supply voltage is 10 Volts since the gate won’t be fully opened if the voltage falls below 10 Volts. You can choose many types of DC motors that operates on 10-20 Volts for this application.

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