Design of low voltage and high current drive circuit based on MOSFET and analysis of key problems

According to the motor control driver in power, current and installation space requirements, this paper presents a MOSFET for power devices to meet the design scheme of high current, low voltage, high reliable motor control driver, and analyzes the key problems of gate resistance selection, absorption circuit, and parallel average current etc. and solves the problems in the present designs. Through experiment and field application, it is proved that the drive circuit of this design is feasible, and the circuit is simple, practical and reliable.