Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Charging system and charging circuit for batteries, as well as method for controlling charging of the battery

A charging circuit and battery charging technology, applied in the direction of battery circuit devices, circuit devices, collectors, etc., can solve the problems of system overheating, reduce the charging efficiency of the battery charging system, etc., and achieve the effect of improving charging efficiency

Active Publication Date: 2010-06-30
AOTU ELECTRONICS WUHAN
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This overheating phenomenon may trigger the overheating protection mechanism of the battery charging system, causing the battery charging system to stop charging, and continue charging until the system temperature drops to a reasonable value
In some cases, the battery charging system may cause the system to overheat after a short period of charging and stop charging
This will cause the battery charging system to switch frequently between charging and stopping charging, thereby reducing the charging efficiency of the battery charging system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Charging system and charging circuit for batteries, as well as method for controlling charging of the battery
  • Charging system and charging circuit for batteries, as well as method for controlling charging of the battery
  • Charging system and charging circuit for batteries, as well as method for controlling charging of the battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] A detailed description will be given below of embodiments of the present invention. While the invention will be described in conjunction with examples, it will be understood that it is not intended to limit the invention to these examples. On the contrary, the invention is intended to cover various alternatives, modifications and equivalents as defined within the spirit and scope of the invention as defined by the appended claims.

[0018] Furthermore, in the following detailed description of the invention, numerous specific details are set forth in order to provide a thorough understanding of the invention. However, it will be understood by those skilled in the art that the present invention may be practiced without these specific details. In some other instances, well-known schemes, processes, components and circuits are not described in detail in order to highlight the gist of the present invention.

[0019] figure 2 Shown is a structural block diagram of a batte...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a charging system and a charging circuit for batteries, as well as a method for controlling charging of the battery. The battery charging system comprises a charging switch for conducting charging current to the battery, a first and a second amplifiers coupled to the charging switch. The first amplifier is used for regulating the charging current according to the power consumption of the charging switch. The second amplifier is used for regulating the charging current according to the voltage of the battery. When the voltage of the battery is less than the predetermined voltage threshold, the charging current through the charging switch is regulated by the first amplifier, so that the power consumption of the charging switch is maintained constant. When the voltageof the battery is larger than the predetermined voltage threshold, the charging current through the charging switch is regulated by the second amplifier, so that the voltage of the battery is maintained constant. Compared with the prior art, during the entire charging process, overheating phenomenon will not occur in the battery charging system even if the difference between the charging power voltage and the battery voltage is relatively large, so that the charging efficiency is improved.

Description

technical field [0001] The invention relates to a battery system, in particular to a battery charging system, a charging circuit and a method for controlling battery charging. Background technique [0002] A traditional battery charging system, for example, a lithium battery charging system, includes three charging stages, namely a pre-charging stage, a constant current charging stage and a constant voltage charging stage. Such as figure 1 Shown is a charging graph 100 for a conventional battery charging system during these three charging stages. [0003] exist figure 1 1 , the charging graph 100 includes a charging current graph 102 of a battery cell and a voltage graph 104 of a battery cell. During the above three charging stages, the charging current graph 102 changes as the voltage graph 104 changes. In the pre-charging stage, a small pre-charging current is used to charge the battery cells, as shown in the charging current graph 102 , and at the same time, the volta...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H02J7/00
CPCY02B40/90H02J7/0072H02J7/00714H02J7/007182Y02B40/00
Inventor 栗国星董鑫
Owner AOTU ELECTRONICS WUHAN
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com