High-temperature-resistant motor reversing driving device

The utility model relates to the field of oil drilling equipment, and discloses a high-temperature-resistant motor reversing driving device, which comprises a motor main body, the motor main body is electrically connected with a signal isolation circuit, the signal isolation circuit is electrically connected with a bootstrap gate driving circuit, and the bootstrap gate driving circuit is electrically connected with a full-bridge driving circuit. According to the utility model, the electronic commutation device comprises a gate drive circuit, a protection circuit, a current detection circuit, an MOS tube commutation circuit and the like, can convert a low-voltage commutation signal into a high-voltage motor drive level, and meanwhile, through the structure of a power chip and copper coating of a circuit board, the high-voltage motor drive level can be converted into a high-voltage motor drive level. Through the optimized design, each power device can transmit heat to the bottom surface of the circuit board in