LED drive protection circuit

The utility model discloses an LED drive protection circuit comprising a power supply voltage conversion circuit, a logic detection circuit, a protection circuit connected with the logic detection circuit, and an LED load circuit connected with the protection circuit, and the logic detection circuit, the protection circuit, and the LED load circuit are respectively connected with the power supplyvoltage conversion circuit. According to the utility model, the power supply voltage conversion circuit divides a 24V voltage and then outputs the divided 24V voltage, thereby optimizing the structureand the power supply form of the whole LED load circuit; a logic detection circuit is adopted to receive input voltage and feedback signals of an LED load circuit, whether overvoltage and LED lamp open circuit occur or not is judged, and if the LED lamp open circuit occurs, the LED lamp string with the open circuit is forbidden. 本实用新型公开了一种LED驱动保护电路，包括电源电压转化电路、逻辑检测电路、与逻辑检测电路连接的保护电路、与保护电路连接的LED负载电路，所述逻辑检测电路、保护电路、LED负载电路分别与电