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US 2015/0030901 A1Published application
Battery heater systems and methods
AssigneeGeneral Electric Company
InventorsRichard Scott BOURGEOIS, Huibin ZHU
Life of this patent
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Abstract
Systems and methods for supplying power to a battery heater in one or more battery modules. A first DC electrical signal derived from an AC source or a second DC electrical signal derived from a DC bus is used to power a battery heater of one or more battery modules in dependence on a voltage level associated with the first DC electrical signal relative to a voltage level of the second DC electrical signal.
Claims20
A power supply circuit, comprising:
- a first circuit portion operable to convert AC electrical power, provided by an AC source, to a first DC electrical power;
- and
- a second circuit portion operable to output a second DC electrical power derived from a DC bus operably connected to at least one DC source,
- wherein the first circuit portion and the second circuit portion are operably connected and configured to provide either the first DC electrical power or the second DC electrical power to a heater circuit of a battery module in dependence on a voltage level associated with the first circuit portion relative to a voltage level associated with the second circuit portion.
1 more element
A method comprising:
- inputting a first DC electrical signal derived from an AC source;
- inputting a second DC electrical signal derived from a DC source;
- and
- powering a heater of at least one battery module with either the first DC electrical signal or the second DC electrical signal in dependence on a DC voltage level of the first DC electrical signal relative to a DC voltage level of the second DC electrical signal.
1 more element
Dependencies are inferred from the claim text.