Intelligent battery charging-and-discharging system

Abstract

The invention discloses an intelligent battery charging-and-discharging system. The system is characterized by comprising the components of a processing chip U3, a relay LS1, a storage battery BAT which is connected with the 3-end of the relay LS1, a discharging circuit which is connected with the 4-end of the relay LS1, a testing control circuit which is connected with the discharging circuit, atiming circuit which is connected with the testing control circuit, a switch circuit which is serially connected between the processing chip U3 and the 5-end of the relay LS1, etc. According to the system, switching-on and switching-off of the relay are automatically controlled through testing the electric quantity of the storage battery, thereby controlling charging to the storage battery, and realizing no requirement for an artificial charging intervention process. According to the intelligent battery charging-and-discharging system, charging current can be automatically adjusted according to the electric quantity of the storage battery; when the electric quantity of the storage battery is relatively low, the storage battery is charged by large current; and when the electric quantity ofthe storage battery reaches a certain value, the storage battery is charged by small current, thereby protecting the storage battery.

Description

technical field [0001] The invention relates to a control system, in particular to an intelligent battery charging and discharging system. Background technique [0002] Along with the continuous development of electronic technology, portable electronic product has been more and more subject to people's favor. The biggest feature of portable electronic products is that they can be separated from the external power supply within a certain period of time, and only rely on their internal independent energy supply system to work normally, so as to realize the function of freely moving the working place at any time. Therefore, using an external power source to charge its internal battery has become a very critical technical link in a portable electronic system. The traditional battery charging system cannot eliminate the self-discharge effect of the battery, and cannot ensure the capacity and service life of the battery. In order to avoid overcharging or undercharging, the tradit...

AI Technical Summary

Problems solved by technology

The traditional battery charging system cannot eliminate the self-discharge effect of the battery, and cannot ensure the capacity and service life of the battery. In addition, in order to avoid overcharging or undercharging, the traditional charging system needs human intervention in the charging process, which brings inconvenience to charging.

Images