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Charge protection circuit for storage battery

A charging protection and protection circuit technology, which is applied to battery circuit devices, emergency protection circuit devices, circuit devices, etc., can solve problems such as the loss of service life of batteries, and achieve the effects of prolonging service life, low cost, and low cost

Inactive Publication Date: 2014-03-26
CHENGDU HONGSHAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When charging the power supply, if the battery is overcharged or the battery is always in a charging state, it will cause loss of service life of the battery

Method used

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  • Charge protection circuit for storage battery

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Embodiment

[0016] Such as figure 1 A charging protection circuit for a storage battery is shown, which includes a storage battery and a protection circuit connected to the storage battery. The protection circuit includes a triode, and the emitter of the triode is connected to the positive pole of the storage battery through a resistor R3. The base of the triode is connected to the anode of the diode D1 through the resistor R2, the cathode of the diode D1 is connected to the positive pole of the battery, and the collector of the triode is connected to the control electrode of the thyristor VS1 through the resistor R4 and the collector of the triode is connected to the anode of the thyristor VS2, the cathode of the thyristor VS2 is connected to the cathode of the thyristor VS1, and the anode of the thyristor VS1 is connected to the diode through the resistor R1 On the anode of D1, the base of the triode is also connected to the anode of the diode D2, the cathode of the diode D2 is connecte...

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PUM

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Abstract

The invention discloses a charge protection circuit for a storage battery. The charge protection circuit comprises the storage battery and a protection circuit connected to the same. The protection circuit comprises a triode; an emitter electrode of the triode is connected with a positive electrode of the storage battery through a resistor R3; a base electrode of the triode is connected with an anode of a diode D1 through a resistor R2, and a cathode of the diode D1 is connected to the positive electrode of the storage battery; a collector electrode of the triode is connected to a control electrode of a silicon controlled rectifier VS1 through a resistor R4 and is also connected to an anode of the silicon controlled rectifier VS1, a cathode of a silicon controlled rectifier VS2 is connected to a cathode of the silicon controlled rectifier VS1, the anode of the silicon controlled rectifier VS1 is connected to an anode of the diode D1 through a resistor R1, the base electrode of the triode is further connected to the anode of the diode D2, and the cathode of the diode D2 is connected to a control electrode of the silicon controlled rectifier VS2. The charge protection circuit has the advantages of simple structure and capability of realizing over-charge protection to the storage battery to prolong service life thereof.

Description

technical field [0001] The invention relates to the field of storage battery protection, in particular to a charging protection circuit for storage batteries. Background technique [0002] A battery is a device that converts chemical energy into electrical energy and is recharged through a reversible chemical reaction. The storage battery is used in many equipments, and it is the main backup power supply of many equipments, and it and the 220V AC power supply are mutually redundant power supplies. When charging the power supply, if the battery is overcharged or the battery is always in a charging state, the service life of the battery will be lost. Contents of the invention [0003] The invention provides a charging protection circuit for a storage battery. The circuit structure is simple, and the storage battery can be overcharged and protected to prolong the service life of the storage battery. [0004] In order to solve the above-mentioned technical problems, the pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02H7/18
Inventor 黄友华
Owner CHENGDU HONGSHAN TECH