Pulsed Sensor Extends Battery Life

Abstract:Thefollowingapplicationnotedemonstratesapower-savingcircuitthatpulsesasensorfor1secondevery30minutes.Designedtomonitorlevelsofsaltcrystalsinawatersoftener,thecircuitconsumesanaverageof70µA.Maxim>DesignSupport>TechnicalDocuments>ApplicationNotes>AmplifierandComparatorCircuits>APP1212Maxim>DesignSupport>TechnicalDocuments>ApplicationNotes>MeasurementCircuits>APP1212Keywords:lowpowersensor,comparator,saltcrystalleveldetector,pulsedsensor,microprocessorsupervisor,comparatorandreference,uPsupervisorJan01,1998APPLICATIONNOTE1212PulsedSensorExtendsBatteryLifeJan01,1998Abstract:Thefollowingapplicationnotedemonstratesapower-savingcircuitthatpulsesasensorfor1secondevery30minutes.Designedtomonitorlevelsofsaltcrystalsinawatersoftener,thecircuitconsumesanaverage