The invention provides an electronic lock feedback control circuit. The electronic lock feedback control circuit uses a thermistor in a sampling circuit to simulate a resistance value of an electronic lock changing with temperature so as to obtain a resistance sampling value. The processor samples a power supply voltage of a first power supply so as to obtain a voltage sampling value, and, according to the obtained resistance sampling value and the voltage sampling value, controls the voltage converter to convert the power supply voltage of the first power supply into a voltage which changes along with the resistance value of the electronic lock, and supplies the voltage to the electronic lock for driving, thereby ensuring that the current of the electronic lock is constant when the electronic lock is at a changing environment temperature and/or a changing power supply voltage. The service life of the electronic lock is prolonged.
本申请提供一种电子锁反馈控制电路,所述电子锁反馈控制电路使用采样电路中的热敏电阻模拟随温度变化的电子锁的电阻值,从而获得一个电阻采样值,所述处理器对第一电源的供电电压进行采样获得一个电压采样值,并根据获取的所述电阻采样值和所述电压采样值,控制电压变换器将第一电源的供电电压转换成一个随电子锁阻值变化的电压,并供给电子锁驱动,从而保证电子锁在变化的环境温度和/或变化的供电电压下,电子锁的电流恒定不变,延长电子锁的使用寿命。
Electronic lock feedback control circuit
一种电子锁反馈控制电路
2021-12-14
Patent
Electronic Resource
Chinese
European Patent Office | 2025
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