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US 9,000,718 B2Granted
Battery management system including switch
AssigneesSamsung SDI Co., Ltd., Robert Bosch GmbH
InventorJong-Doo Park
Life of this patent
Estimating the term…
Abstract
A battery management system (BMS) in which a battery protection circuit controls a main switch using hardware without software control, thereby coping with troubles in the BMS or software errors.
Claims10
A battery management system (BMS) for managing a power supply from a battery to an inverter, comprising:
- a reference voltage generator connected in parallel to the battery and configured to generate a reference voltage;
- a comparator for comparing a battery voltage from a terminal of the battery with the reference voltage output by the reference voltage generator;
- a charge pump connected between the reference voltage generator and the comparator;
- and
- a switch for blocking a current flow of the battery according to an output signal generated by the comparator.
2 more elements
A device for managing a battery comprising:
- a reference voltage generator powered by the battery and configured to generate a reference voltage;
- a comparator for generating a control signal based on a comparison of a voltage of the battery and the reference voltage;
- a charge pump connected between the reference voltage generator and the comparator;
- and
- a switch for interrupting charging or discharging of the battery in accordance with the control signal
- wherein the reference voltage generator, the comparator, and the switch are operated to manage the battery without software control.
3 more elements
Dependencies are inferred from the claim text.