Overcharge/overdischarge detection apparatus, overcharge/overdischarge detection circuit, and semiconductor apparatus
AssigneeMitsumi Electric Co., Ltd.
InventorsKazuhiro Ooshita, Akira Ikeuchi
Life of this patent
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Abstract
The present invention provides an overcharge/overdischarge detection apparatus includes a detection terminal being in an open state, a detection part for detecting application of voltage to the detection terminal, a switch part for switchably connecting and disconnecting a secondary battery with an external circuit, and a control part for controlling the switch part in a case where the detection part detects the application of voltage to the detection terminal.
Claims9
An overcharge/overdischarge detection apparatus for a battery pack having a secondary battery comprising:
- a detection terminal being in an open state;
- a detection part for detecting application of voltage to the detection terminal at a voltage level resulting from the detection terminal being short circuited by a liquid leakage of the secondary battery in said battery pack;
- a switch part for switchably connecting and disconnecting the secondary battery with an external circuit;
- and
- a control part for controlling the switch part in a case where the detection part detects the application of voltage to the detection terminal.
An overcharge/overdischarge detection circuit for a battery pack having a secondary battery comprising:
- a detection terminal being in an open state;
- a detection circuit for detecting application of voltage to the detection terminal at a voltage level resulting from the detection terminal being short circuited by a liquid leakage of the secondary battery in said battery pack;
- a switch part for switchably connecting and disconnecting the secondary battery with an external circuit;
- and
- a control part for controlling the switch part in a case where the detection circuit detects the application of voltage to the detection terminal.
A semiconductor apparatus for a battery pack having a secondary battery comprising:
- a detection terminal being in an open state;
- a detection circuit for detecting application of voltage to the detection terminal at a voltage level resulting from the detection terminal being short circuited by a liquid leakage of the secondary battery in said battery pack;
- a switch part for switchably connecting and disconnecting a secondary battery with an external circuit;
- and
- a control part for controlling the switch part in a case where the detection circuit detects the application of voltage to the detection terminal.
Dependencies are inferred from the claim text.