System and Method Providing Power Within a Battery Pack
First Claim
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1. A system for controlling power distribution within a battery pack supplying power to a vehicle, comprising:
- high voltage circuitry within said battery pack, said high voltage circuitry isolated from low voltage circuitry within said battery pack;
a plurality of battery cells within said battery pack; and
a power supply coupled to the negative side of said high voltage circuitry, and the power supply coupled to said plurality of battery cells such that said power supply loads each of said plurality of battery cells substantially equally.
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Abstract
A system for supplying power internal to a battery pack is disclosed. In one embodiment, the system includes a power supply that is powered by battery cells in the battery pack such that each battery cell supplies substantially the same amount of current to power the power supply. In this way, power can be distributed within the battery pack without causing imbalance between an amount of charge stored in different battery cells.
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Citations
20 Claims
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1. A system for controlling power distribution within a battery pack supplying power to a vehicle, comprising:
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high voltage circuitry within said battery pack, said high voltage circuitry isolated from low voltage circuitry within said battery pack; a plurality of battery cells within said battery pack; and a power supply coupled to the negative side of said high voltage circuitry, and the power supply coupled to said plurality of battery cells such that said power supply loads each of said plurality of battery cells substantially equally. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for controlling power distribution within a battery pack supplying power to a vehicle, comprising:
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high voltage circuitry within said battery pack; low voltage circuitry within said battery pack; a plurality of battery cells within said battery pack; galvanic isolation between said low voltage circuitry and said high voltage circuitry; and a power supply coupled to the negative side of said high voltage circuitry and coupled to a plurality of battery cells, said power supply in isolated communication with circuitry of one or more boards coupled to one or more battery cell stacks within said battery pack. - View Dependent Claims (10, 11, 12, 13)
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14. A method for distributing power within a battery pack supplying power to propel a vehicle, comprising:
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providing input power to a power supply within said battery pack, said input power provided by battery cells of said battery pack; coupling said power supply to the negative side of a high voltage output of a battery pack; and isolating an output of said power supply from said battery cells and supplying power to at least an electrical device within said battery pack. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification