4、-ABSTRACTInthisthesis,thedesignofpush-pull structureaboutSwitching Power Supply DCwillbeintroduced.Thisstabilized voltage supplycaninput12VDCandoutputpowersupplyof24V/4A.Inthissystem,themainsupplypoweradoptspush-pull structure;drive circuitusesSG3525;thecontrolpartadoptsSTC12-SingleChipMicrocom
6、sendssignalstodisconnectrelaytoprotectthemainpowersupplytopology.Atthesametime,therewillbeanalarmforremindingusers.Thisdesigndetailedlydiscussedpush-pulltopology,theminimumsystemofSingleChipMicrocomputer,circuitforoutput.ThisdesignofDC stabilized power supplyhaspracticalvalue.KeyWords:Push-pull