Power management systems with controllable adapter output
First Claim
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1. A power management system comprising an adapter operable for charging a battery pack, powering a system load, and generating a power recognition signal indicative of a maximum adapter power of said adapter;
- and a battery controller in said battery pack and for receiving said power recognition signal, and for generating a control signal to adjust an output power of said adapter according to a status of said battery pack and a status of said system load, and for controlling said battery pack according to said power recognition signal and said output power of said adapter; and
a monitoring circuit configured to monitor a cell voltage, cell current, cell temperature and cell capacity status for each cell, and protect each cell from over voltage, over current, over temperature, and over charge conditions; and
monitoring circuit monitors and generates a monitoring signal fro each cell; and
a command converter integrated in the battery pack used to generate control signal for controlling an output power of the adapter based on individual cell status.
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Abstract
A power management system includes a battery pack having a battery controller and includes an adapter operable for charging the battery pack and powering a system load. The adapter generates a power recognition signal indicative of a maximum adapter power and receives a control signal. The battery controller in the battery pack receives the power recognition signal and generates the control signal to adjust an output power of the adapter according to a status of the battery pack and a status of the system load.
35 Citations
28 Claims
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1. A power management system comprising an adapter operable for charging a battery pack, powering a system load, and generating a power recognition signal indicative of a maximum adapter power of said adapter;
- and a battery controller in said battery pack and for receiving said power recognition signal, and for generating a control signal to adjust an output power of said adapter according to a status of said battery pack and a status of said system load, and for controlling said battery pack according to said power recognition signal and said output power of said adapter; and
a monitoring circuit configured to monitor a cell voltage, cell current, cell temperature and cell capacity status for each cell, and protect each cell from over voltage, over current, over temperature, and over charge conditions; and
monitoring circuit monitors and generates a monitoring signal fro each cell; and
a command converter integrated in the battery pack used to generate control signal for controlling an output power of the adapter based on individual cell status. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 28)
- and a battery controller in said battery pack and for receiving said power recognition signal, and for generating a control signal to adjust an output power of said adapter according to a status of said battery pack and a status of said system load, and for controlling said battery pack according to said power recognition signal and said output power of said adapter; and
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12. A battery pack comprising:
- a monitoring circuit for monitoring each cell of a plurality of cells in said battery pack and generating a monitoring signal indicating a status of each cell; and
a battery controller coupled to said monitoring circuit and for receiving a power recognition signal indicative of a maximum adapter power of an adapter, and for generating a control signal to control an output power of said adapter according to said monitoring signal and a status of a system load powered by said adapter, and for controlling said battery pack according to said power recognition signal and said output power of said adapter; and
a monitoring circuit configured to monitor a cell voltage, cell current, cell temperature and cell capacity status for each cell, and protect each cell from over voltage, over current, over temperature, and over charge conditions; and
monitoring circuit monitors and generates a monitoring signal fro each cell; and
a command converter integrated in the battery pack used to generate control signal for controlling an output power of the adapter based on individual cell status. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
- a monitoring circuit for monitoring each cell of a plurality of cells in said battery pack and generating a monitoring signal indicating a status of each cell; and
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20. A method comprising:
- receiving a power recognition signal indicative of a maximum adapter power of an adapter;
generating a control signal to adjust an output power of said adapter according to a status of a battery pack and a status of a system load powered by said adapter; and
controlling said battery pack according to said power recognition signal and said output power of said adapter; and
a monitoring circuit configured to monitor a cell voltage, cell current, cell temperature and cell capacity status for each cell, and protect each cell from over voltage, over current, over temperature, and over charge conditions; and
monitoring circuit monitors and generates a monitoring signal fro each cell; and
a command converter integrated in the battery pack used to generate control signal for controlling an output power of the adapter based on individual cell status. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
- receiving a power recognition signal indicative of a maximum adapter power of an adapter;
Specification