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Battery charging and discharging control circuit and method

A charge and discharge control and control circuit technology, applied in the field of battery charge and discharge control systems, can solve problems such as battery damage and battery differences, and achieve the effect of current balance and protection from damage

Pending Publication Date: 2021-02-19
JOULWATT TECH INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the purpose of the present invention is to provide a battery charge and discharge control circuit and method to solve the technical problem of battery damage caused by battery differences in the prior art

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  • Battery charging and discharging control circuit and method
  • Battery charging and discharging control circuit and method
  • Battery charging and discharging control circuit and method

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Embodiment Construction

[0029]The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to these embodiments. The present invention covers any alternatives, modifications, equivalent methods and solutions made within the spirit and scope of the present invention.

[0030]In order for the public to have a thorough understanding of the present invention, specific details are described in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details.

[0031]In the following paragraphs, the present invention is described in more detail by way of example with reference to the drawings. It should be noted that the drawings all adopt a relatively simplified form and all use imprecise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments o...

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Abstract

The invention discloses a battery charging and discharging control circuit and method, and the method comprises the steps: setting different maximum charging reference currents and maximum dischargingreference currents according to the parameter difference of a plurality of batteries, so as to enable each battery to be charged according to the maximum charging reference current corresponding to the battery in a charging process; and each path of battery discharges according to the maximum discharge reference current corresponding to the path in the discharge process, so that the currents of the multiple paths of batteries in the charge-discharge process can be balanced, the phenomenon of disordered charge and discharge is avoided, and the batteries are protected from being damaged.

Description

Technical field[0001]The invention relates to the field of battery charge and discharge control, and more specifically, to a battery charge and discharge control system and method.Background technique[0002]In the application of rechargeable power supply, usually multiple single cells are connected in parallel to form a battery pack as a charging power source to increase the capacity of the charging power source. However, even for the same type and batch of batteries, there will inevitably be certain differences in the manufacturing process of each single battery, and this difference will increase with the use of time. This difference results in that during the charging and discharging process of the battery pack, the current will flow concentratedly to one or several of the batteries, thereby causing damage to a certain battery.Summary of the invention[0003]In view of this, the purpose of the present invention is to provide a battery charge and discharge control circuit and method t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/44
CPCH01M10/44H02J7/0016H02J7/0019H02J7/0029H02J7/0068H02J7/007H02J7/00308Y02E60/10
Inventor 黄必亮
Owner JOULWATT TECH INC LTD