Apparatus and method of providing an initiation voltage to a rechargeable battery system
First Claim
1. A device used with a rechargeable battery for providing a initiation voltage to a battery controller which has been operationally disabled due to an event associated with said rechargeable battery, said rechargeable battery charged by a charging system and including at least one cell, a charging terminal for supplying a charging current to said rechargeable battery and a data terminal for supplying information to said charging system, said device comprising:
- at least one switch for detecting a first voltage applied to said data terminal by said charging system;
a coupling means for supplying a second voltage from said charging terminal to said battery controller to enable said battery controller; and
wherein a battery controller directs said voltage potential of said at least one cell to said charging terminal for detection by said charging system.
4 Assignments
0 Petitions
Accused Products
Abstract
An undervoltage recovery pulse network (500) and method used with a lithium ion battery system (400) for providing a initiation voltage to a battery controller (503) which has been operationally disabled due to an event associated with the lithium ion battery system (400). The undervoltage recovery pulse network (500) includes a switch (523) for detecting a first voltage applied to a data terminal (537) by a charging system. A coupler (525) is used for supplying a second voltage from a charging terminal (535) to the battery controller (503) to enable the battery controller from its disabled state. The battery controller (503) then connects the voltage potential of a cell (501) to the charging terminal (535) for detection by a charging system. This allows the charging system to detect an attached battery so it may apply a charging voltage to charging terminal (535).
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Citations
24 Claims
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1. A device used with a rechargeable battery for providing a initiation voltage to a battery controller which has been operationally disabled due to an event associated with said rechargeable battery, said rechargeable battery charged by a charging system and including at least one cell, a charging terminal for supplying a charging current to said rechargeable battery and a data terminal for supplying information to said charging system, said device comprising:
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at least one switch for detecting a first voltage applied to said data terminal by said charging system; a coupling means for supplying a second voltage from said charging terminal to said battery controller to enable said battery controller; and wherein a battery controller directs said voltage potential of said at least one cell to said charging terminal for detection by said charging system. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of enabling a battery controller which has been disabled due to a safety control system associated with a portable battery, said portable battery including a charging node for supplying a charging current to at least one cell within said portable battery and a data node for conveying information to a charging system, comprising the steps of:
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attaching said portable battery to said charging system; detecting a first voltage provided at said data node by said charging system; actuating a first switch with said first voltage from said data node; enabling said battery controller with a second voltage provided by said charging system through said charging node; and connecting said at least one cell to said charging node for detection by said charging system. - View Dependent Claims (8, 9, 10)
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11. An undervoltage pulse generator circuit for allowing a battery controller which controls at least one switch establishing continuity between a battery cell and a charging terminal to be reactivated by a battery charger when it has been temporarily disabled due to an event associated with said battery cell, said undervoltage pulse generator circuit comprising:
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a first switch for receiving a pulse provided by a data terminal on said battery charger and connecting a charging terminal to a electronic device supply terminal in response thereto; a second switch connected to said first switch and said battery controller for providing a path for a current applied to said charging terminal by said battery charger to said battery controller; and wherein said battery controller is reactivated by said current applied to said charging terminal reestablishing continuity between said battery cell and said charging terminal for detection by said battery charger. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method of enabling a control system used with a portable battery which has been inactivated by a control switch on the portable battery comprising the steps of:
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receiving a pulse at a first node on said portable battery used to convey data to a battery charging system; activating a bypass switch with said pulse to connect a voltage supplied at a second node of said portable battery, by said battery charging system, to reactivate said control system; and opening said control switch to connect said portable battery to said second node for detection by said battery charging system. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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Specification