详细分析了交流接触器在不同使用条件下的闭合与分断时触点两端电压与回路电流情况，并研究了AC1～AC4工作制下的控制时序。
The conditions of voltage between contactors and current in main circuit under different using types are analyzed in detail, then designed the control sequences with working mode AC1-AC4.
本文介绍了工作于交流电网中线性负载有效值电压线性控制器的设计。
This paper discusses the design method of an effective voltage linearity controller of linear load working in AC power networks.
当市电断路时，工作于电压控制模式，提供稳定的交流电源输出。
While the unity power is failed, the power conditioner works in voltage-controlled mode so as to output AC voltage.
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