PULSE GENERATING CIRCUIT, CONTROL METHOD FOR PULSE GENERATING CIRCUIT, TRANSMITTER, AND ELECTRONIC DEVICE

摘要

A pulse generating circuit includes: a boosting circuit which boosts power source voltage supplied from an external primary battery and produces boosted voltage higher than the power source voltage; a secondary battery to be charged with the boosted voltage; a pulse circuit which generates a pulse; a switch element connected between the secondary battery and the pulse circuit; and a control circuit which enables the boosting circuit and switches off the switch element during a charge period for charging the secondary battery with the boosted voltage, and disenables the boosting circuit and switches on the switch element during a discharge period for discharging the boosted voltage contained in the secondary battery.