The practical circuit of the non-isolated switching power supply

Published:2011/7/12 4:27:00 Author:TaoXi | Keyword: practical circuit, non-isolated, switching, power supply | From:SeekIC

The practical circuit of the non-isolated switching power supply is as shown in the figure, it can be used as the switching power supply of the MuDan TC--483D type color TV set, it is composed of the grid filter which is composed of the C80l, C802, L801; the bridge rectifier circuit which is composed of the VD80l and VD802; the filter which is composed of the R802 and C807, the peak voltage limiter which is assumed by the piezoresistor VD811, the pulse oscillator which is composed of the switch tube VT80l and the pulse transformer T801; the pulse width modulator which is composed of the VT802; the error amplifier which is composed of the VT803.



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