Secondary battery made into ic

Abstract

Abstract PURPOSE:To optimize charging and discharging efficiencies in a secondary battery, by constituting the secondary battery with a current detecting resistor connected to the battery in series and a microcomputer, while metering a state of charging and discharging with the microcomputer. CONSTITUTION:A microcomputer 3, which is connected to a secondary battery 1, a current detecting resistor 2 connected to this battery 1 in series and a minus terminal 10 and a plus terminal 11 of the secondary battery 1, and detects analog input terminals 22 and 23, connected to both ends of the detecting resistor 2, is installed and thereby a secondary battery made into IC is formed. And, with the microcomputer 3, a difference between voltage VB and V'B of these terminals 11 and 12 is found, whereby a state of charging and discharging is judged, further calculating a passing current of the detecting resistor 2, and according to these data and counting data inside the microcomputer 3, an integrating value of charging and discharging power and time is found and outputted. Therefore, charging and discharging efficiencies in the secondary battery is optimizable and, what is more, energy storing force is able to be drawn out to the maximum.

Inventors

• 👤 Hidekazu Matsumoto
• 👤 英一 松本

Bibliographic Details