利索-全球专利检索

  1. 登录
  2. 注册
实用新型
CN205376403U 继电器驱动电路及自恢复式过欠压保护器 有权

继电器驱动电路及自恢复式过欠压保护器
摘要：
本实用新型涉及一种继电器驱动电路其包括信号连接点P1/P2、继电器线圈RE1、电阻R1/R4、电容C1/C2、三极管Q1/Q2，所述三极管Q1的基极依次经电容C1、电阻R1与继电器线圈RE1的端口5连接，集电极与继电器线圈RE1的端口1连接，发射极接地；所述信号连接点P1与电阻R1和电容C1之间节点连接；一种自恢复式过欠压保护器，所述采样电路与电源电路电连接；所述信号处理电路与采样电路电连接；所述继电器驱动电路与信号处理电路电连接，根据信号处理电路的处理结果对继电器进行驱动，当继电器维持在稳态后，利用电容C1/C2的阻直流的特性，驱动电路处于电气隔离状态，可靠性高。
摘要（英）：

The utility model relates to an it includes signal connection point P1P2, relay coil RE1, resistance R1R4, electric capacity C1C2, triode Q1Q2 relay drive circuit, triode Q1's base is connected with relay coil RE1's port 5 through electric capacity C1, resistance R1 in proper order, and emitter ground is connected with relay coil RE1's port 1 to the collecting electrode, nodal connection between signal connection point P1 and resistance R1 and the electric capacity C1, the undervoltage protection ware is crossed to a self -resuming formula, sampling circuit is connected with the power supply circuit electricity, processing circuit is connected with the sampling circuit electricity, relay drive circuit and processing circuit electricity is connected, drives the relay according to processing circuit's result, when the relay maintains the stable state after, utilizes electric capacity C1C2's the characteristic that hinders the direct current, and drive circuit is at electric separation state, reliability height.

0/0