Unlocking control circuit for locking mechanism

The invention belongs to an unlocking control circuit and particularly discloses an unlocking control circuit for a locking mechanism. The output end of a DSP is communicated with the input end of a control circuit, and the output end of the control circuit is communicated with the control input end of a locking circuit. One output end of the locking circuit is communicated with one input end of a circuit to be unlocked, and the other output end of the locking circuit is communicated with the other input end of the circuit to be unlocked and input end of a detection circuit. The feedback output end of the detection circuit is communicated with the input end of the DSP. The DSP sends a control instruction to the control circuit, the control circuit reverses the control instruction and then transmits the control instruction to the locking circuit, the locking circuit carries out filtering and optocoupler isolation for the reversed control instruction and then transmits the control instruction to the circuit to be unlocked and the detection circuit, the detection circuit collects the state of the circuit to be unlocked and transmits to the DSP in real time, and the DSP determines the locking state of the circuit to be unlocked. The circuit can isolate load from a power supply so as to prevent an electromagnetic lock from being burnt, and can provide a stable supply voltage to the electromagnetic lock.