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Electromagnetic lock protection circuit
The electromagnetic lock protection circuit comprises a main control unit U2; the enable end of the main control unit U2 receives an enable signal through a resistor R3; the current detection end of the main control unit U2 collects the current working current through a resistor R4; a current detection opening end of the main control unit U2 receives an opening signal through a resistor R6; the current setting end of the main control unit U2 is grounded through a resistor R8; the input end of the main control unit U2 receives a voltage, the output end of the main control unit U2 is connected with the terminal J2, and the terminal J2 is used for being connected with an electromagnetic lock; the method further comprises the following steps. The method comprises the steps that S1, an electromagnetic lock is started for the first time, current sampling is conducted N times, the maximum current and the minimum current are obtained, output is stopped when a feedback signal exists, and a timeout value and a continuous operation interval value are obtained; s2, starting the electromagnetic lock again, sampling the current for N + 1 times to obtain the maximum current and the minimum current, and stopping working; and S3, through multiple tests, the magnitude of the unlocking working current of the electromagnetic lock is monitored in real time each time, and the current precision is accurate to mA.
一种电磁锁保护电路，包括主控单元U2；主控单元U2的使能端通过电阻R3接收使能信号；主控单元U2的电流检测端通过电阻R4采集当前工作电流；主控单元U2的电流检测开启端通过电阻R6接收开启信号；主控单元U2的电流设置端通过电阻R8接地；主控单元U2的输入端接收一电压，其输出端与端子J2连接，端子J2用于与电磁锁连接；还包括如下步骤；S1，第一次启动电磁锁，电流采样N次，获得最大电流以及最小电流，有反馈信号时停止输出，获得超时值以及连续运行间隔值；S2，再一次启动电磁锁，电流采样N+1次，获得最大电流以及最小电流，停止工作；S3，经过多次测试，每次实时监测其电磁锁开锁工作电流大小，电流精度精确到mA。
Electromagnetic lock protection circuit
The electromagnetic lock protection circuit comprises a main control unit U2; the enable end of the main control unit U2 receives an enable signal through a resistor R3; the current detection end of the main control unit U2 collects the current working current through a resistor R4; a current detection opening end of the main control unit U2 receives an opening signal through a resistor R6; the current setting end of the main control unit U2 is grounded through a resistor R8; the input end of the main control unit U2 receives a voltage, the output end of the main control unit U2 is connected with the terminal J2, and the terminal J2 is used for being connected with an electromagnetic lock; the method further comprises the following steps. The method comprises the steps that S1, an electromagnetic lock is started for the first time, current sampling is conducted N times, the maximum current and the minimum current are obtained, output is stopped when a feedback signal exists, and a timeout value and a continuous operation interval value are obtained; s2, starting the electromagnetic lock again, sampling the current for N + 1 times to obtain the maximum current and the minimum current, and stopping working; and S3, through multiple tests, the magnitude of the unlocking working current of the electromagnetic lock is monitored in real time each time, and the current precision is accurate to mA.
一种电磁锁保护电路，包括主控单元U2；主控单元U2的使能端通过电阻R3接收使能信号；主控单元U2的电流检测端通过电阻R4采集当前工作电流；主控单元U2的电流检测开启端通过电阻R6接收开启信号；主控单元U2的电流设置端通过电阻R8接地；主控单元U2的输入端接收一电压，其输出端与端子J2连接，端子J2用于与电磁锁连接；还包括如下步骤；S1，第一次启动电磁锁，电流采样N次，获得最大电流以及最小电流，有反馈信号时停止输出，获得超时值以及连续运行间隔值；S2，再一次启动电磁锁，电流采样N+1次，获得最大电流以及最小电流，停止工作；S3，经过多次测试，每次实时监测其电磁锁开锁工作电流大小，电流精度精确到mA。
Electromagnetic lock protection circuit
一种电磁锁保护电路
XU ZHIHUI (author) / CHEN SHUO (author) / LI XIAODONG (author) / CHEN GUANGYI (author) / XIAO DENGFA (author)
2024-08-16
Patent
Electronic Resource
Chinese
IPC:
E05B
LOCKS
,
Schlösser
Driving control circuit, electromagnetic lock protection device and electromagnetic lock
| European Patent Office | 2024