Double-tube Forward DC-DC Converter Circuit

Published:2011/6/24 1:15:00 Author:Michel | Keyword: Double-tube, Forward, DC-DC, Converter Circuit | From:SeekIC

Double-tube forward DC-DC converter circuit is shown as above.Among them,transformer T1 acts as isolation and transformation and and inductance Lo(flow current inductance) is added to output port which acts as energy storage and transmission.The transfomer primary level does not need reset winding because both VD1 and VD2 conduction limit the voltage which two regulation tubes bear when they are turned off.In output loop ,a rectifier diode VD3 and a free-wheeling diode VD4 (VD3, VD4 had better choose the rectifier diode with short recovery time )are needed.Output filter capacitance Co should chooselarge capacity capacitance with low equivalent resistance to reduce the ripple voltage(other topology structure also require like this). Picture:Double-tube Forward DC-DC Converter Circuit



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