为此，提出了在继电器两端并联一个电阻器或者电容器的改进方案，使其起到降低输出继电器两端激励电压的作用。
Therefor, it is suggested that a resistor or a capacitor be connected with the relay in parallel to lower the exciting voltage at both ends of the output relay.
循环输出的工作方式，可延长电容器和交流接触器的使用寿命。
Circularly output way, prolong capacitor and power modules or combination switch life.
当电容器被用作过滤器，它是连接在与电源的输出端，如图8 - 4平行。
When a capacitor is used as a filter, it is connected in parallel with the output of power supply, Figure 8-4.
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