The invention provides an elevator safety tongs driving circuit, method, driver and system, the elevator safety tongs driving circuit comprises a power supply circuit, a detection and diagnosis circuit, a first sampling circuit, a second sampling circuit, a driving control circuit and an overcurrent detection circuit, and the driving control circuit comprises a driving signal generation circuit, a high-side switch and a low-side switch; the first sampling circuit monitors the power supply voltage and the first working voltage; the second sampling circuit monitors a switch loop of an electromagnet of the elevator safety tongs; the overcurrent detection circuit monitors the current of an electromagnet of the elevator safety tongs; the detection and diagnosis circuit outputs PWM diagnosis signals regularly, and judges the condition of the elevator safety tongs according to the monitoring results of the first sampling circuit, the second sampling circuit and the over-current detection circuit; the drive signal generating circuit outputs a drive signal so that the high-side switch and the low-side switch control their switching states based on the drive signal. Faults of the safety tongs and the driver can be found in time, and effective braking of the safety tongs is improved.

    本申请提供一种电梯安全钳驱动电路、方法、驱动器及系统,包括:电源电路、检测诊断电路、第一采样电路、第二采样电路、驱动控制电路及过流检测电路,驱动控制电路包括驱动信号产生电路、高边开关及低边开关;第一采样电路对供电电压和第一工作电压进行监测;第二采样电路对电梯安全钳的电磁铁的开关回路进行监测;过流检测电路对电梯安全钳的电磁铁的电流进行监测;检测诊断电路定时输出PWM诊断信号,根据第一采样电路、第二采样电路及过流检测电路的监测结果对电梯安全钳的状况进行判断;驱动信号产生电路输出驱动信号,以使高边开关和低边开关基于驱动信号控制自身的开关状态。可及时发现安全钳及驱动器的故障,并提高安全钳的有效制动。


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    Title :

    Elevator safety gear driving circuit, method, driver and system


    Additional title:

    一种电梯安全钳驱动电路、方法、驱动器及系统


    Contributors:
    YANG LEI (author)

    Publication date :

    2025-03-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen



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