Battery charger polarity self-adaption system

An adaptive system and battery charger technology, applied to battery circuit devices, current collectors, electric vehicles, etc., can solve problems such as explosions, damage to chargers, and battery scrapping

Inactive Publication Date: 2014-03-12
青岛紫光软件系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The short-circuit current may damage the charger, or cause the battery to be scrapped or even explode.
[0003] At present, some people have proposed a protection circuit for the reverse connection between the charger and the battery, but the protection circuit can only ensure that there will be no danger and damage when the connection is reversed, and it cannot charge the battery.

Method used

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  • Battery charger polarity self-adaption system

Examples

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Embodiment Construction

[0012] The battery charger polarity adaptive system of the present invention is arranged between the charger and the storage battery, and the system includes a control circuit and a controlled full-bridge circuit, and the control circuit and the controlled full-bridge circuit are connected through resistors R5 and R6;

[0013] Among them, the control circuit includes optocoupler U1, optocoupler U2, resistor R7, and resistor R8. Pin 1 of optocoupler U1 is connected to resistor R7 and then connected to both ends of the battery with pin 2, and pin 2 of optocoupler U2 is connected to resistor R8. Then connect the two ends of the battery with pin 1 respectively;

[0014] The controlled full-bridge circuit includes PMOS tube Q1, PMOS tube Q3, NMOS tube Q2, NMOS tube Q4, resistor R1, resistor R2, resistor R3, resistor R4, one end of resistor R1 and resistor R3 are respectively connected to one end of the charger, resistor R2 1. One end of resistor R4 is connected to the other end of ...

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PUM

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Abstract

The invention relates to a battery charging system, and especially relates to a self-adaption protection system of a battery charger. According to the battery charger polarity self-adaption system provided by the invention, the system is arranged between the charger and a storage battery; the system comprises a control circuit and a controlled full bridge circuit; and the control circuit and the controlled full bridge circuit are connected through a resistor R5 and a resistor R6. The battery charger polarity self-adaption system provided by the invention can prevent dangers when the charger and the battery are reversely connected, and can realize battery charging when reverse connection is carries out.

Description

technical field [0001] The invention relates to a battery charging system, in particular to an adaptive protection system for a battery charger. Background technique [0002] Because the positive and negative poles of the battery configured by the electric vehicle manufacturer are not standardized, most users do not know the positive and negative polarity of the battery. When the charger is connected to a battery with opposite polarity, the charger voltage is superimposed on the battery voltage, forming a short circuit. The short-circuit current may damage the charger, or cause the battery to be scrapped or even explode. [0003] At present, someone has proposed a protection circuit for the reverse connection between the charger and the battery, but the protection circuit can only ensure that there will be no danger and damage during the reverse connection, and it cannot charge the battery. Contents of the invention [0004] The technical effects of the present invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
Inventor 崔岩兰广义
Owner 青岛紫光软件系统有限公司
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