BATTERY DEVICE AND BATTERY CONTROL DEVICE

摘要

A battery device includes: a secondary battery; a charger; a first transistor configured to control conduction between the secondary battery and a load; a second transistor configured to control conduction between the charger and the secondary battery; diodes of which cathodes are connected to each other and that are connected between the secondary battery and the charger; a capacitor configured to accumulate charge to be transferred to the gate of the first transistor; a capacitor configured to accumulate charge to be transferred to the gate of the second transistor; and a battery control device configured to control charging/discharging of the secondary battery.

主权项

1. A battery device, comprising:
a secondary battery configured to supply a current to a load; a charger configured to charge the secondary battery; a first NMOS transistor configured to control conduction of a current path from the charger to the secondary battery; a second NMOS transistor configured to control conduction of a current path from the secondary battery to the load; a first diode of which an anode is connected to one end of the secondary battery; a second diode of which an anode is connected to one end of the charger and a cathode is connected to a cathode of the first diode; a first capacitor configured to accumulate charge to be transferred to a gate of the first NMOS transistor; a second capacitor configured to accumulate charge to be transferred to a gate of the second NMOS transistor; and a battery control device configured to control charging/discharging of the secondary battery by controlling the accumulation of charge into the first and second capacitors and the transfer of the charge to the gates of the first and second NMOS transistors.