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Charger feedback circuit

A feedback circuit and charger technology, applied in battery circuit devices, current collectors, circuit devices, etc., can solve problems such as uneven quality of chargers, mobile phone or computer battery explosion, etc., to improve charging efficiency and charging safety, Improve the overall reliability and reduce the effect of charging accidents

Inactive Publication Date: 2014-10-01
SHENZHEN OCEANS KING LIGHTING ENG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

At present, the quality of chargers in the market is uneven, causing battery explosions of mobile phones or computers and other electrical appliances to happen from time to time.

Method used

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  • Charger feedback circuit
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Embodiment Construction

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Such as figure 1 As shown, one embodiment of the present invention is a charger feedback circuit, which includes a power input terminal, a first rectification filter circuit, a control circuit, a voltage transformer circuit, a second rectification filter circuit, a charging output terminal, a photocoupler , a first voltage stabilizing circuit, an operational amplifier, a second voltage stabilizing circuit and a voltage dividing circuit.

[0020] The power input end is connected to the first rectification and filtering circuit, and is used for inputting commercial power and transmitting it to the first rectification and filtering circuit; for example, the power input end is a two-pin plug. Preferably, a fuse is also included, which is arranged between the power supply input terminal and the first rectifying and filtering circuit. Pref...

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Abstract

The invention discloses a charger feedback circuit. The charger feedback circuit comprises a power source input end, a first rectification filter circuit, a control circuit, a voltage transformation circuit, a second rectification filter circuit, a charging output end, a photoelectric coupler, a first voltage stabilizing circuit, an operational amplifier, a second voltage stabilizing circuit and a voltage division circuit. The power source input end is connected with the first rectification filter circuit. The first rectification filter circuit is connected with the control circuit and the voltage transformation circuit. The control circuit is connected with the photoelectric coupler and the voltage division circuit respectively. The voltage transformation circuit is connected with the second rectification filter circuit. The positive output end of the second rectification filter circuit is connected with the optocoupler input positive electrode of the photoelectric coupler, the input end of the first voltage stabilizing circuit, the power source end of the operational amplifier, the input end of the voltage division circuit and the positive electrode of the charging output end. The charging output end is used for being connected with an external battery for charging.

Description

technical field [0001] The present invention relates to a charger, in particular to a charger feedback circuit. Background technique [0002] In emergency electrical appliances, the charger is an indispensable electrical accessory. There are often accidents in the market that the battery explodes or burns out the electronic product during charging. Therefore, the quality of the charger directly determines the working performance and even product safety performance of the electronic product. At present, the quality of chargers in the market is uneven, causing battery explosions of electrical appliances such as mobile phones or computers to happen from time to time. [0003] Therefore, there are defects in the prior art and need to be improved. Contents of the invention [0004] The technical problem to be solved by the invention is to provide a new charger feedback circuit. [0005] The technical solution of the present invention is as follows: a charger feedback circuit,...

Claims

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Application Information

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IPC IPC(8): H02J7/10
Inventor 周明杰王现中
Owner SHENZHEN OCEANS KING LIGHTING ENG CO LTD
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