This paper explained the basic principle and the structure of the controlling circuit of the switch stable power, and provided the test result.
阐述了设计开关型稳压电源的控制电路基本原理和电路结构，并提供了测示结果。
Abstract: the circuit breaker as the main switch equipment transformation equipment, its normal operation or not relates to the whole of the safe and stable and reliable operation of the power grid.
摘要：断路器作为输变电设备的主要开关设备，它的正常运行与否关系着整个电网的安全稳定可靠运行。
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