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Rectifier and filter circuit diagram

2017-02-24 05:28  
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Rectifier and filter circuit diagram
The function of the rectifier and filter circuit is to change AC into 300V DC voltage. The LCD power supply circuit often adopts bridge rectifier and capacitor filter type, the typical circuit is shown in the figure. In the circuit, VD1~VD4 are four rectifier triodes of full bridge rectifier, C is filter capacitor, the capacity is large, the value of withstand voltage should be higher than 400V, Ui is the input AC voltage, Uo is the rectified outputed DC voltage, it always is about 300V.