Battery equalizing system, circuit and method

A technology of battery equalization and equalization method, which is applied in the direction of charge equalization circuit, battery disconnection circuit, battery circuit device, etc., can solve the problems of expensive A/D converter and high cost of battery equalization system 100, so as to improve the effect and reduce the cost effect

Inactive Publication Date: 2013-02-06
AOTU ELECTRONICS WUHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the price of the A / D converter is relatively expensive, resulting in a relatively high cost of the battery balancing system 100

Method used

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  • Battery equalizing system, circuit and method
  • Battery equalizing system, circuit and method
  • Battery equalizing system, circuit and method

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Embodiment Construction

[0033] A detailed description will be given below of embodiments of the present invention. Although the present invention has been illustrated and illustrated by these embodiments, it should be noted that the present invention is not limited to these embodiments. On the contrary, the invention covers all alternatives, modifications and equivalents which are within the spirit and scope of the invention as defined by the appended claims.

[0034] In addition, in order to better illustrate the present invention, numerous specific details are given in the specific embodiments below. It will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, processes, components and circuits are not described in detail so as to highlight the gist of the present invention.

[0035] figure 2Shown is a block diagram of a battery balancing system 200 according to one embodiment of the present...

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Abstract

The invention provides a battery equalizing system, a battery equalizing circuit and a battery equalizing method. The battery equalizing system comprises a plurality of bypass paths and a battery management circuit, wherein the bypass paths are connected in parallel with corresponding batteries; the battery management circuit is connected with the bypass paths and is used for detecting a voltage value of each battery and comparing the voltage value of each battery in a first stage with a first reference voltage corresponding to the first stage; and the battery management circuit conducts a first bypass path connected in parallel with a first battery when the voltage value of the first battery reaches the first reference voltage value, and compares the voltage value of each battery with a second reference voltage corresponding to a second stage when a first specified value in the first stage reaches the first reference voltage value. By the battery equalizing system, the battery equalizing circuit and the battery equalizing method, the battery equalizing effect is improved and the cost of the battery equalizing system is reduced.

Description

technical field [0001] The invention relates to a battery balancing system, circuit and method, in particular to a battery balancing system, circuit and method applied to multiple batteries. Background technique [0002] figure 1 A block diagram of a conventional battery balancing system 100 is shown. The battery balancing system 100 is used to balance batteries 101-1-101-n. The battery balancing system 100 includes bypasses 110 - 1 - 110 - n , analog-to-digital converters (Analog-to-Digital Converter, A / D converter for short) 120 - 1 - 120 - n and a central control module 130 . Each bypass is connected to a corresponding battery. Each shunt consists of a resistor and a switch. A / D converters 120-1-120-n are connected to batteries 101-1-101-n, respectively. For example, a bypass 110-i is connected to the battery 101-i, the bypass 110-i includes a resistor 112-i and a switch 114-i. The A / D converter 120-i is connected to the battery 101-i. [0003] In operation, the A / ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/42
CPCY02E60/12H02J7/00H01M2010/4271H02J7/0016H01M10/4207H02J7/0031H01M10/42Y02E60/10
Inventor 张卫
Owner AOTU ELECTRONICS WUHAN
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