Pulsed Sensor Extends Battery Life

Abstract: The following application note demonstrates a power-saving circuit that pulses a sensor for 1 second every 30 minutes. Designed to monitor levels of salt crystals in a water softener, the circuit consumes an average of 70µA.
Maxim > Design Support > Technical Documents > Application Notes > Amplifier and Comparator Circuits > APP 1212
Maxim > Design Support > Technical Documents > Application Notes > Measurement Circuits > APP 1212

Keywords: low power sensor, comparator, salt crystal level detector, pulsed sensor, microprocessor supervisor, comparator and
reference, uP supervisor
Jan 01, 1998
APPLICATION NOTE 1212

Pulsed Sensor Extends Battery Life
Jan 01, 1998

Abstract: The following application note demonstrates a power-saving circuit that pulses a sensor for 1 second every 30 minutes.
Designed to monitor levels of salt crystals in a water softener, the circuit consumes an average