A battery management module and circuit

Abstract

The invention relates to a battery management module and a circuit; both the battery access unit and the electric energy output unit are detachable connection devices, flexible in use, and can be used externally to meet different use requirements; the one-way switch unit controls the battery access unit and the power output unit. The power output unit conducts forward conduction, reverse conduction or disconnection to realize charging, discharging, and energy saving of the battery; the battery protection and power calculation unit performs overcharge protection, overheat protection and calculation of battery power; Detect the state of the battery, not only detect the temperature and voltage of the battery, etc., to prolong the service life and safety of the battery; after the battery protection and power calculation unit detects that the battery meets the normal working state, it controls the one-way switch unit to conduct forward conduction to make the battery The electric energy of the mobile terminal is transmitted to the electric energy output unit to realize the power supply output; the charging management of the battery of the mobile terminal is realized and the electric energy of the battery is controlled to output according to the state of the battery to realize power saving, and the circuit is simple.

Description

technical field [0001] The invention belongs to the technical field of battery management of mobile terminals, and in particular relates to a battery management module and a circuit. Background technique [0002] Notebooks and mobile phones are commonly used electronic devices in daily life. The most familiar ones are the battery level indicator and charging reminder function. However, there are extremely complicated working protocols behind such a simple application; The system layer and the underlying hardware EC (Embedded Controller) have formed a fixed set of protocols over the years, using the EC common SMBUS (System Management Bus) bus to access the address of the fuel gauge on the battery module, so as to obtain power data for Report the operating system to complete the power indication and battery management; in terms of hardware design architecture, a relatively fixed design architecture is adopted, charging management and EC (embedded controller) are designed on th...

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Problems solved by technology

[0003] Although the traditional architecture mentioned above has been used until now, the design threshold is relatively high, the cost of custom design is very high, and the research and development cycle is relatively long. Due to the development of science and technology, new applications emerge in an endless stream, and the traditional architecture is very suitable for new applications. Inflexible; in practical applications, except for notebook motherboards, most motherboards are not designed with battery management and power indicators. When new applications are produced, many times they have to choose The external modules are patched together, and the user experience of the final product is poor. The battery indicator cannot be connected with the system protocol, so it only makes a simple external indicator. Ordinary motherboards do not have perfect battery management, resulting in too short battery discharge time. Even batteries are prone to various safety hazards

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