利用“软启动电路”消除开关电源浪涌电流

Elimination of Switching Power Supply Surge Current with "Soft-start Circuit"

详细论述了软启动电路的电气工作原理,包含两条设计原则:即在加电瞬间除去负载、同时限制有用的电流。实践证明利用"软启动电路"消除开关电源浪涌电流的方法大大优于传统的输入浪涌电流限制方法,而且该电路可以改制成适合于各种开关电源所用的电路中,具有不错的市场推广价值。

This article discusses in detail the electrical work principle of soft-start circuit, it includes two principles in design, that is： removing the load in the instant of powering, at the same time limiting the useful current. Practice has proved that the using of ＂soft-start circuit,＂ to eliminate the switching power supply surge current is far superior to the traditional limiting methods with surge current inputting, and that the circuit can be suitable converted into a variety of switching power supply used in the circuit.