自振接触器驱动程序最小化保持电源

摘要：这种接触器电路self-oscillates尽量减少电力消耗上。比较器开关作为必要的线圈之间的滞后限制当前向上和向下斜。电路开始self-oscillate当你增加的电压。Maxim>AppNotes>AMPLIFIERANDCOMPARATORCIRCUITSMISCELLANEOUSCIRCUITSKeywords:selfoscillating,contactdriver,holdpower,step-downconverter,solenoid,switches,relays,Dec03,2002standbyinverter,Allbright2180-40BcontactorAPPLICATIONNOTE1792Self-OscillatingContactorDriverMinimizesHoldPowerAbstract:Thiscontactorcircuitself-oscillatestominimizepowerconsumptionwhenon.Thecomparatorswitchesasnecessarytorampthecoilcurrentupanddownbetweenthehysteresislimits.Thecircuitstartstoself-oscillateasyouincreasethesupplyvoltage.Forswitchingcurrentsgreaterthanabout25A,solenoid-operatedswitchescalledcontactorsareusedinplaceofrelays.Acommonapplicationforcontactorsisindisconnectingthebatteryfroma