设计了基于CAN总线的地址编码器，通信总站的数码显示电路，控制继电器电路，LNK501开关电源芯片电路。
Design the CAN bus address encoder, communication terminal digital display circuit, control relay circuit, LNK501 switching power supply chip circuitry.
抖动，说明极有可能是消磁电阻损坏，如果没有响声则可能继电器及其控制电路有问题。
Jitter, that is very likely damage degaussed resistance, in the absence of sound may be the relay and control circuit problem.
使用继电器、接触器、按钮、空气开关、行程开关等低压电器构成的控制电路称为继电接触控制电路。
Use relays, contactor, button, air switch and travel switch etc low-voltage constitute control circuit called relay contact control circuit.
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