Double-turn-off high-power laser overcurrent protection circuit

The utility model discloses a double turn-off large power laser overcurrent protection circuit comprising an MCU main control chip, the MCU main control chip is connected with an amplifier, the output end of the amplifier is connected with an MOS tube 1, the drain electrode of the MOS tube 1 is connected with an LED lamp, the negative electrode of the amplifier is connected with a transimpedance amplifier, and the transimpedance amplifier is connected with an LED lamp. The transimpedance amplifier is connected with a photodiode matched with the LED lamp; the response speed of the drive circuit is improved, the laser is turned off in real time under the overcurrent condition, damage to the laser is reduced, and the service life is prolonged. The use loss of the laser is reduced, the use efficiency of products is improved, and the cost is reduced. And the damage condition of devices in the circuit can be better protected by double-circuit turn-off. 本实用新型公开了双关断大功率激光器过流保护电路，包括MCU主控芯片，所述MCU主控芯片上连接有放大器，所述放大器的输出端连接有