Double-lithium battery control system based on EC controller

Abstract

The invention discloses a double-lithium battery control system based on an EC controller, and relates to a portable computer power supply field. The double-lithium battery control system comprises an SMBus communication module, a battery information analyzing module, a charging chip control module, a power supply switching control module, and a charging discharging strategy decision making module, which are disposed on an EC firmware in an integrated way. The SMBus communication module is used to provide an SMBus communication interface to other modules, and is used for battery information acquisition and charging chip control. The battery information analyzing module is used to read and analyze lithium battery information by an interface provided by the SMBus communication module. The charging chip control module is used to realize setting of charging switching-on / off and charging voltage / current by the interface provided by the SMBus communication module. The power supply switching control module is used to control system power supply selection. The charging discharging strategy decision making module is used to make decisions about the power supplies of the system and the charging discharging power of the double lithium batteries according to the battery information and an adapter in-place condition.

Description

technical field [0001] The invention discloses a dual lithium battery control system, relates to the field of portable computer power supplies, in particular to a dual lithium battery control system based on an EC controller. Background technique [0002] EC (Embeded Controller, embedded controller) is an embedded microcontroller, which is widely used in the design of notebook computers with intelligent power-saving functions, and plays an important role in the portable, intelligent and personalized design of notebook computers. It plays an important role in realizing functions such as notebook built-in keyboard control, touchpad control, temperature monitoring, and notebook battery intelligent charge and discharge management. [0003] The smart lithium battery control system is implemented based on the Smart Battery Specification and is mainly used in portable electronic devices such as notebook computers, mobile phones and digital cameras. The whole system is composed of ...

AI Technical Summary

Problems solved by technology

However, at present, intelligent lithium battery control systems are often designed for single batteries, and special applications such as military command have high requirements for the endurance of portable computers, and a single battery cannot meet the system requirements.

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