Binary-channel redundancy brushless direct current motor driver

A binary-channel redundancy brushless direct current motor driver belongs to the technical field of a motor. The driver comprises a control circuit, two power amplification circuits, two inversion bridge main circuits, four phase current detection circuits, two over-current protection circuits, and two relay protection circuits. The control circuit is used for coordinating work of each part, and controlling starting, stopping, speed regulation, reverse direction and other motions of a motor, wherein the controlled object is a double redundancy brushless direct current motor. The phase current detection circuits are mainly used for detecting the phase current of the motor, and the phase current is input to a controller after being processed for the purpose of feedback adjustment of the rotating speed of the motor. The over-current protection circuits are used for timely diagnosis and protection of a fault if the fault occurs to a system. The relay protection circuits serve as the key part of the system, can be used for controlling heavy current load through weak control signals, and allows a power supply to be immediately cut off once a fault occurs to a main circuit, thereby improving the overall reliability and the safety of the system.