隔离电源用电容

摘要：隔离电源电路集成H桥驱动器（MAX256采用）通常驱动变压器初级，但它也可以驾驶的变压器对电容替代，在提供隔离和转移电源。

Maxim>AppNotes>AmplifierandcomparatorcircuitsCircuitprotectionPower-supplycircuitsKeywords:isolatedpower,H-bridgedrivers,dc-blockingcapacitors,isolationcapacitorsDec22,2010APPLICATIONNOTE4553IsolatedPowerUsingCapacitorsAbstract:AnintegratedH-bridgedriverforisolatedpower-supplycircuits(MAX256)usuallydrivestheprimaryofatransformer,butitcanalsodriveapairofcapacitorsthatsubstituteforthetransformerinprovidingisolationandpowertransfer.AsimilarversionofthisarticleappearedintheJune15,2007issueofEETimesmagazine.Isolatedpowerisusuallygeneratedwithatransformer,butitcanalsobegeneratedusingcapacitors.Forsomesystems,theconstraintsofsizeandcostmayfavorcap