Apparatus for discharging a combination battery consisting...

Details Apparatus for discharging a combination battery consisting... Apparatus for discharging a combination battery consisting...

2005-11-01

2005-11-01

Sherry, Michael (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

Regulated discharging

C320S130000, C320S133000, C320S134000

Reexamination Certificate

active

06960899

ABSTRACT:
A discharging circuit, connected to both terminals of a lithium battery, includes a first discharge resistor, a second discharge resistor, and a transistor for occasionally discharging the lithium battery to reduce the SOC difference among respective lithium batteries constituting a combination battery. A voltage detecting circuit detects a terminal voltage of the lithium battery via the first discharge resistor. A discharge controller judges a failure occurring in the discharging circuit based on a comparison between a terminal voltage value detected when the transistor is turned on and a terminal voltage value detected when the transistor is turned off.

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