This MOSFET offers nice characteristics that are essential for this application, very low RDSon resistance, and high current handling capability. I’ve selected 4 IR3205 to do the switching. As it is clear, the heart of the circuit is two IR2104 MOSFET driver chips.įigure 1, Schematic diagram of the H-Bridge DC motor driver Theoretically, the above-mentioned MOSFET can handle currents up to 80A, however, in practice we can expect to get currents up to 40A if the MOSFET temperature is kept as low as possible, using a big heatsink or even a fan.įigure 1 shows the schematic diagram of the H-Bridge DC motor driver. In this article/video, I have introduced a complete H-Bridge DC motor driver using four IR3205 power MOSFETs and two IR2104 MOSFET drivers. The main advantages of using an H-Bridge driver are: high efficiency, rotation direction change, and braking the motor. H Bridge PWM DC Motor Driver An H-Bridge (Full-Bridge) driver is quite popular in driving loads such as brushed DC motors and it is widely used in robotics and industry.
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