Battery protection circuit and battery apparatus including the same
AssigneeSamsung SDI Co., Ltd.
InventorsHyeoncheol Jeong, Sanggu Lee, Kyongpil Jin
Life of this patent
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Abstract
A battery protection circuit includes: a voltage divider connected in parallel to an outer terminal, and configured to output a divided voltage; a controller configured to output an overvoltage determination signal based on the divided voltage that is input thereto; a logic portion configured to output a switching control signal based on the overvoltage determination signal and the divided voltage that are input thereto; and a switching portion configured to control a connection between a battery module and the outer terminal according to the switching control signal.
Claims15
A battery protection circuit, comprising:
- a voltage divider connected in parallel to an outer terminal, and configured to output a divided voltage;
- a controller configured to output an overvoltage determination signal based on the divided voltage that is input thereto;
- a logic portion configured to output a switching control signal based on the overvoltage determination signal and the divided voltage that are input thereto;
- and
- a switching portion configured to control a connection between a battery module and the outer terminal according to the switching control signal.
A battery module protecting method, comprising:
- receiving, by a voltage divider, a voltage from an outer terminal, to provide a divided voltage;
- outputting, by a controller, an overvoltage determination signal based on the divided voltage that is input thereto;
- outputting, by a logic portion, a switching control signal based on the overvoltage determination signal and the divided voltage that are input thereto;
- and
- controlling, by a switching portion, a connection between a battery module and the outer terminal according to the switching control signal.
A battery apparatus, comprising:
- a battery module;
- an outer terminal configured to connect an external device to the battery module;
- and
- a battery protection circuit, the battery protection circuit including:
- a voltage divider connected in parallel to the outer terminal, and configured to output a divided voltage;
- a controller configured to output an overvoltage determination signal based on the divided voltage that is input thereto;
- a logic portion configured to output a switching control signal based on the overvoltage determination signal and the divided voltage that are input thereto;
- and
- a switching portion configured to control a connection between the battery module and the outer terminal according to the switching control signal.
Dependencies are inferred from the claim text.