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US 8,577,630 B2Granted
Automatic discharge of a failed battery
AssigneeHewlett-Packard Development Company, L.P.
InventorsStephen D. Heizer, John A. Wozniak, Thomas P. Sawyers
Life of this patent
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Abstract
A system comprises a battery cell, control logic, and a battery drain latch circuit. The control logic is coupled to the battery cell and determines whether a battery pack has experienced a failure condition. The battery drain latch circuit is activated by the control logic, upon detection of a failure condition, to cause the battery cell to drain energy therefrom.
Claims17
A system, comprising:
- a battery cell;
- control logic coupled to the battery cell, said control logic determines whether a battery pack has experienced a failure condition;
- and
- a battery drain latch circuit that is activated by said control logic, upon detection of the failure condition, to cause said battery cell to drain energy.
1 more element
A system, comprising:
- a microcontroller to detect a failure condition of a battery pack;
- and
- a battery drain circuit to automatically causing the battery pack to dissipate energy contained therein based on the detection of a failure condition by the microcontroller.
A method, comprising:
- detecting a failure condition of a battery pack;
- as a result of detecting the failure condition, asserting a failure signal to a latch;
- and
- the latch causing energy to automatically be drained from the battery pack.
1 more element
Dependencies are inferred from the claim text.