Drive circuits for magnetic latching relays

Abstract

A drive circuit for a magnetic latching relay is provided, including a reference voltage circuit, configured to provide a reference voltage; a capacitor, including a first terminal configured to receive a control signal and a second terminal configured to receive the reference voltage; a first comparison circuit, configured to receive a voltage of the second terminal of the capacitor, compare the voltage with a first threshold voltage, and output an ON signal when the voltage of the second terminal of the capacitor is greater than the first threshold voltage; and a second comparison circuit, configured to receive a voltage of the second terminal of the capacitor, compare the voltage with a second threshold voltage, and output an OFF signal when the voltage of the second terminal of the capacitor is less than the second threshold voltage.

Dependencies are inferred from the claim text.