隔离数字信号耦合转移到DC为30ns

摘要：一对MOSFET的驱动IC和铁氧体磁珠变压器非正统的应用程序产生一个单声道，数字信号耦合隔离。

Maxim>AppNotes>COMMUNICATIONSCIRCUITSHOT-SWAPANDPOWERSWITCHINGCIRCUITSKeywords:magneticcoupling,digitalisolation,digitalsignalcouplers,MOSFETdrivers,ferrite-beadJun20,2005transformersAPPLICATIONNOTE3533IsolatedDigital-SignalCouplerTransfers30nstoDCAbstract:AnunorthodoxapplicationofapairofMOSFET-driverICsandaferrite-beadtransformeryieldsasingle-channel,isolateddigital-signalcoupler.Optocouplersaretheusualchoiceforcouplingdigitalsignalsbetweenisolatedcircuitswithdifferentgroundlevels.Optocouplershavedisadvantages,however.Theirmostimportantparameters,currenttransferandpropagationtime,changewithaging.Theyhavearelativelyhighstaticpowerconsumptionand,formosttypes,limitedspeed.