高侧电流传感器输出周期

摘要：两个内部比较器MAX4374高边电流检测放大器用于产生一个输出信号的脉冲宽度的比例目前所检测。这个简单的电路，消除了一个独立的A/D转换的需要。Maxim>AppNotes>AMPLIFIERANDCOMPARATORCIRCUITSKeywords:currentsenseIC,highsidecurrentsense,currentsenseamplifier,pulsewidthsignaloutput,May31,2002currentsenseresistorAPPLICATIONNOTE1084High-SideCurrentSensorHasPeriodOutputAbstract:TheMAX4374high-sidecurrentsenseamplifierwithtwointernalcomparatorsisusedtoproduceapulse-widthoutputsignalproportionaltothecurrentbeingsensed.ThissimplecircuiteliminatestheneedforadiscreteA/Dconverter.High-sidecurrentmonitoringisfoundinmanybattery-poweredproductsthatrequireaccuratemonitoringofloadcurrent,chargercurrent,orboth.Innon-portableapplicationshigh-sidecurrentmonitoringservesasapower-supplywatchdogthatcanflagafailureindownstreamdevices.It