On-chip outputs short-circuit detection function.12A peak startup output current and 12A peak brake output current.Allows forward, reverse, and brake operations in accordance with the external input signal.External current detection resistor allows overcurrent detection and peak current control in the PWM operation mode.Both ICs required a large size heat sink to dissipate heat. To restart the operation, turn on 5V supply again. If the output pin is short-circuited directly to VCC or connected directly to GND, an output short circuit condition is detected and the output is latched in the off state. When the detector is activated, this pin is set low and all outputs are latched off. Monitor (Fault) pin is used when either of the outputs short-circuits detector, overcurrent detector, or overheat detector is activated. If the button is pressed, the motor will run in forward, otherwise it will run in reverse. The factor is 4 because the analog reading will be between and the analog output needs to be between 0 and 255. The circuit requires 3 input signals: Enable for PWM input for speed control, IN1 and IN2 to change the motor direction and to apply the brake while the motor is in running condition. In the loop function, a value for the motor speed is found by dividing the analog reading from the pot by 4. The circuit can drive brushed DC Motor with up to 12 A peak current. 10 coupon applied at checkout Save 10 with coupon. The NPN transistor BD 139 drives the output from timer IC, this output pulse duration decides the speed of DC motor, by varying the VR1 resistor we can vary the pulse output of timer.This high current forward-reverse DC motor driver is built using STK681-332 IC from ON Semiconductor. DC 12V 40A Motor Remote Control Switch 2CH Motor Forward and Reverse Wireless Switch, 433Mhz Remote Control Relay Use for Car, Motor, Electric Curtain, Water Pump and More. The diode D1 protects the DC motor from the back emf effect hence there is no output load effect rise. The DC motor is connected to the supply through DPDT ( double pole double through ) switch, by changing the switch position we can get forward and reverse rotation from the DC motor because this switch interchanges power supply polarity applied to the DC motor. In this website we already published about Speed control of DC motor with timer IC, here this circuit constructed for the basic motive to meet the forward / Reverse operation of DC motor with speed control.
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