In this circuit, some measures are adopted, such as making constant current source as a rectifying load. It makes the voltage drop of the rectifyingdiode maintain a constance.
该电路采取以恒流源为整流负载等有关措施，使整流二极管的正向导通压降为一常数。
2
Use half wave rectifying power supply must add free-wheeling diode.
使用半波整流电源必需加装续流二极管。
3
The dc voltage is obtained by rectifying and filtering the line voltage, most often by the diode-rectifier circuit.