Patent ID: 7973515
Filing Date: 2011-07-05
Classification: H02J

Abstract:
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.