Circuit for Rendering Energy Storage Devices Parallelable
First Claim
1. A circuit rendering an energy storage device parallelable, the circuit comprising:
- (a) an energy storage device having a state of charge and a source connection with a source potential; and
(b) a power adapter having a first connection electrically connected to the source connection and a second connection having a terminal potential,wherein the power adapter converts between the source potential and the terminal potential by following a predetermined function of the state of charge of the energy storage device.
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Accused Products
Abstract
A circuit for rendering an energy storage device parallelable comprised of an energy storage device connected to a power adapter that converts the potential of the energy storage device into a potential that follows a predetermined function of the state of charge of the energy storage device. When multiple assemblies are paralleled, they may be charged and discharged as a whole with individual storage devices maintaining equal states of charge. The energy storage devices can be batteries with different cell counts, configurations, and energy discharge profiles. In some cases, the power adapters are comprised of DC to DC converters and system controllers that are used to translate each battery'"'"'s energy discharge profile into a user-determined energy discharge profile that is a predictable function of the battery'"'"'s state of charge and independent of temperature or other external conditions.
163 Citations
20 Claims
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1. A circuit rendering an energy storage device parallelable, the circuit comprising:
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(a) an energy storage device having a state of charge and a source connection with a source potential; and (b) a power adapter having a first connection electrically connected to the source connection and a second connection having a terminal potential, wherein the power adapter converts between the source potential and the terminal potential by following a predetermined function of the state of charge of the energy storage device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of connecting and converting a plurality of energy storage devices in a parallel topology, the method comprising the steps of:
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(a) connecting at least two energy storage devices to at least two DC to DC converters, such that each energy storage device is connected to a different DC to DC converter, and wherein each of the energy storage devices has a state of charge and an energy storage device potential; (b) connecting at least two system controllers to the DC to DC converters, such that each DC to DC converter is connected to a different system controller; and (c) instructing the system controllers to direct the DC to DC converters to produce an output potential that follows a predetermined function of the state of charge of the energy storage devices, wherein the energy discharge profiles of each of the DC to DC converters are the same. - View Dependent Claims (19, 20)
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Specification