“三容电路”是在桥式全波整流一滤波电路的基础上加接两只容量较小的电容器构的变型电路,它的形式虽然简单,但巧妙地解决了全波整流电路在工频激光电源中的应用问题。由于该电路具有双重负载特性,即在空载时能倍压,在输出端呈现二倍于桥路输入电压峰值的输出电压;而在有载时,二倍压自动消失,整个电路以全波整流的方式 “Three-capacity circuit ” is in the bridge full-wave rectifier circuit based on the filter plus two smaller capacity capacitor circuit, its form is simple, but cleverly solved the full-wave rectifier circuit Application of power frequency laser power supply. Due to the dual load characteristic of the circuit, which can double the voltage at no-load, the output voltage is twice the peak output voltage of the bridge input voltage. When the load is doubled, the double voltage automatically disappears, Rectifier way