摘要：本应用笔记介绍了电路之间无缝切换电池供电和USB供电，以最小的电路。该设计采用一个升压转换器架构，在一个LDO（MAX1792）之间连接的USB电源线和一个升压转换器的输出（MAX1795/MAX1796/MAX1797）。
Maxim>AppNotes>CircuitProtectionInterfaceCircuitsPower-SupplyCircuitsKeywords:LDOlinearregulators,step-upconverters,boostconverters,USBpower,batteryoperation,hotSep16,2009swappingAPPLICATIONNOTE4445BoostConverterSwitchesBetweenBatteryandUSBPowerBy:KazumaAkabaneAbstract:ThisapplicationnotepresentsacircuitthatswitchesseamlesslybetweenbatterypowerandUSBpowerwithminimalcircuitry.Thedesignusesastep-upconverterarchitectureinwhichanLDO(theMAX1792)isconnectedbetweentheUSBpowerlineandtheoutputofastep-upconverter(theMAX1795/MAX1796/MAX1797).ThisdesignideaappearedintheNovember1,2006issueofEETimesJapan,andwaspostedontheEETimesUSwebsiteonNovember21,2006.VirtuallyallPCsn
暂无评论