推挽驱动器提供1A的5V隔离电压

摘要：一个简单的电路，在这种设计理念在1A的5V隔离输出稳压的5V输入转换。变压器H桥，推挽式驱动器，MAX253，效率直接取决于输出整流器的正向压降。

Maxim>AppNotes>BatteryManagementPower-SupplyCircuitsKeywords:H-bridgedriver,push-pulltransformerdriver,isolatedoutput,siliconrectifierJun19,2000APPLICATIONNOTE674Push-PullDriverProvidesIsolated5Vat1AAbstract:Inthisdesignideaasimplecircuitconvertsaregulated5Vinputtoanisolated5Voutputat1A.TheefficiencyofatransformerH-bridge,push-pulldriver,theMAX253,dependsdirectlyontheforwarddropsoftheoutputrectifiers.ThecircuitinFigure1convertsaregulated5Vinputtoanisolated5Voutputwith1Acurrent-outputcapability.IC1,apush-pulltransformerdriver,powersapairofcross-coupledpowerMOSFETsinaflip-flop-likeconfiguration.Inturn,theMOSFETstogglethe