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Cell charging control circuit

A technology for controlling circuits and battery charging, applied to battery circuit devices, circuit devices, current collectors, etc., can solve the problems of complex circuit structure and high manufacturing cost, and achieve the effect of simple circuit, low cost and reliable operation

Inactive Publication Date: 2004-09-15
永州市星宇电子有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the battery charging control circuit in the prior art is composed of a temperature control circuit or an AH value detection circuit, and its circuit structure is complex and its manufacturing cost is high, which are its disadvantages.

Method used

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  • Cell charging control circuit
  • Cell charging control circuit

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Embodiment approach

[0012] The present invention is composed of a comparator B, a diode D, and a capacitor C; the circuit has two input terminals 1 and 2, an output terminal 4 and a ground terminal 3. Input terminal 1 is connected to the non-inverting input terminal of comparator B; input terminal 2 is connected to the positive pole of diode D; the negative pole of diode D is connected to the inverting input terminal of comparator B, and at the same time connected to one end of capacitor C; the other end of capacitor C is connected to the negative pole of the power supply .

[0013] see figure 2 , in one embodiment of the present invention, the positive pole of the rectified power supply is connected to the input terminal 5 of the charging switch circuit H; the output terminal of the charging switch circuit H is connected to one end of the current limiting resistor R, and at the same time connected to the V+ of the comparator B to limit the current The other end of the resistance R is connected...

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Abstract

The control circuit comprises comparator B, diode D and capacitor C. there are two input ends 1, 2 as well as an output end 4 and ground terminal 3. Input end 1 is connected to in phase input end of comparator B; input end 2 is connected to anode of diode D. cathode of diode D is connected to anti phase input end of comparator B and a end of capacitor C. another end of capacitor C is connected to cathode of power source. Benefits effect of the invention are simple circuit, low cost, reliable running so that it is in favor of success in commerce.

Description

technical field [0001] The invention relates to a battery charging control circuit, in particular to a charging control circuit which utilizes the negative increment characteristic after the storage battery is fully charged. Background technique [0002] At present, the battery charging control circuit in the prior art is composed of a temperature control circuit or an AH value detection circuit, and its circuit structure is complex and its manufacturing cost is high, which are its disadvantages. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention provides a charging control circuit with simple structure and low manufacturing cost, which utilizes the negative increment characteristic after the storage battery is fully charged. [0004] The technical solution adopted by the present invention to solve the technical problem is: the control circuit is composed of a diode, a capacitor and a comparator, and two voltage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02J7/10
Inventor 吴才荣
Owner 永州市星宇电子有限责任公司