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Lithium battery charging management module

A charging management and battery management circuit technology, which is applied in the field of lithium battery charging management modules, can solve problems such as charger voltage instability, breakdown circuit protection devices, surge voltage, etc., and achieve light size, increased safety, and low power consumption effect

Active Publication Date: 2020-06-09
福建飞毛腿动力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the charger standards used for the battery pack are inconsistent, the output voltage of some chargers is unstable, and even generates surge voltage, and even breaks down the protection devices on the circuit

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The technical scheme of the present invention will be further described below in conjunction with the accompanying drawings of the description:

[0015] Such as figure 1 As shown, a lithium battery charging management module includes a charging management circuit 1 and a battery management circuit 2. The charging management circuit 1 includes a single-chip microcomputer, a Buck drive circuit, a field effect transistor Q101, a reverse protection diode D101, and an enabling logic circuit , input positive pole C+, input negative pole C-, inductor L101, filter capacitor C101, LDO circuit, enable switch BT101, output positive pole P+, ​​output negative pole P-, current-sensing resistor RS101, communication interface, LED display circuit, the single-chip microcomputer through The Buck drive circuit is connected to the G pole of the field effect transistor Q101, the S pole of the field effect transistor Q101, and an input terminal of the LDO circuit are all connected to the ne...

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PUM

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Abstract

The invention discloses a lithium battery charging management module, which comprises a charging management circuit and a battery management circuit, wherein the charging management circuit comprisesa single-chip microcomputer, a Buck driving circuit, a field effect transistor Q101, a reverse protection diode D101, an enable logic circuit, an input positive electrode C+, an input negative electrode C-, an inductor L101, a filter capacitor C101, an LDO circuit, an enable switch BT101, an output positive electrode P+, an output negative electrode P, a current detection resistor RS101, a communication interface and an LED display circuit. According to the invention, the safety and reliability of a battery pack in the use process are greatly improved. The charging management circuit has the characteristics of independent protection, light volume and flexible use, can be assembled and used in quantity, improves the safety of the battery in the charging process, avoids accidents and loss, and has the advantage of low power consumption at the same time.

Description

technical field [0001] The invention relates to a lithium battery charge management module. Background technique [0002] With the increasing application of lithium-ion batteries, more and more lithium-ion batteries are used in power battery systems, such as electric vehicles, electric tools, etc.; power battery packs have higher capacity and energy density. In order to achieve safe use, Adding charging management protection on the battery side has higher safety, can effectively manage the circuit and protect the safety of operators. [0003] At present, the battery management circuit of the power battery pack does not have an independent charging management module, and the charging protection part only has the function of detecting battery voltage and overcurrent. When the charger standards used for the battery pack are inconsistent, the output voltage of some chargers is unstable, and even generates surge voltage, and even breaks down the protection devices on the circuit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02H7/18
CPCH02H7/18Y02E60/10
Inventor 孙孟洪王维乐刘斌生张凤敏
Owner 福建飞毛腿动力科技有限公司