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Battery management circuit used for communication equipment

A battery management circuit and communication equipment technology, applied in the electronic field, can solve the problems of unprotected batteries, spillage, explosion, etc., and achieve the effect of increasing output voltage and improving safety

Inactive Publication Date: 2015-08-26
SICHUAN CCO DISPLAY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its overcharge and overdischarge protection is completed by the protection sub-unit on the battery unit. If the protection board fails, the battery is in an unprotected state, which may cause serious consequences such as explosion and spillage.

Method used

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  • Battery management circuit used for communication equipment
  • Battery management circuit used for communication equipment
  • Battery management circuit used for communication equipment

Examples

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0016] The structural diagram of the battery management circuit for communication equipment of the present invention is as follows: figure 2 As shown, it includes an adapter 1, a power management unit 2, a battery unit 6, a battery boost output unit 3, a diode 402 and a main control unit 4, and also includes a first switch unit 7, a second switch unit 8 and a third switch Unit 9, wherein the adapter 1 is connected to the power management unit 2 through the first switch unit 7, the power management unit 2 is connected to the battery boost output unit 3 through the second switch unit 8, and the battery boost output unit 3 is connected to the main control unit 4 It is connected through the third switch unit 9, and the connection point between the main control unit 4 and the third switch unit 9 is used as the output of the lithium battery manageme...

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PUM

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Abstract

The invention discloses a battery management circuit used for communication equipment. The circuit comprises an adapter, a power supply management unit, a battery unit, a battery boost output unit, a diode and a main control unit. The circuit also comprises a first MOS switch unit, a second MOS switch unit and a third MOS switch unit. The adapter is connected to the power supply management unit through the first MOS switch unit. The power supply management unit is connected to the battery boost output unit through the second MOS switch unit. The battery boost output unit is connected to the main control unit through the third MOS switch unit. The connection point of the main control unit and the third MOS switch unit serves as the output end of the lithium battery management circuit. According to the invention, the three MOS switch units are added to the lithium battery management circuit to detect current states of a lithium battery so as to determine whether a protection circuit is switched on, so that the security of lithium battery protection is improved, and the power supply output voltage of the battery is increased.

Description

technical field [0001] The invention belongs to the field of electronic technology, and in particular relates to the design of a battery management circuit used in communication equipment. Background technique [0002] The existing lithium battery management circuit of a communication device powered by a lithium battery is specifically as follows: figure 1 As shown, it includes: an adapter 1, a power management unit 2, a battery unit 7, a battery boost output unit 3, two diodes and a main control unit 4, where the lithium battery management circuit provides working voltage for the telephone system functional unit 5. Its overcharge and overdischarge protection is completed by the protection sub-unit above the battery unit. If the protection board fails, the battery will be in an unprotected state, which may lead to serious consequences such as explosion and spillage. Contents of the invention [0003] The object of the present invention is to propose a battery management c...

Claims

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Application Information

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IPC IPC(8): H02J7/00H02H7/18
Inventor 任海
Owner SICHUAN CCO DISPLAY TECH