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Charging system

A charging system and charging control technology, which is applied to different battery charging, current collectors, electric vehicles, etc., can solve the problems of large circuit volume, circuit complexity and increased component usage, and achieve the effect of protecting the battery

Inactive Publication Date: 2018-07-10
CHICONY POWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the indicator switch module on the traditional charging stand uses red light emitting diodes and green light emitting diodes as indicator lights, it is mainly to design two sets of driving circuits to individually control the switching of red light emitting diodes and green light emitting diodes. , which increases the complexity of the circuit and the amount of components used, and results in a bulky overall circuit

Method used

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Embodiment Construction

[0075] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0076] see figure 1 , which shows a circuit block diagram of the charging system according to the present invention. exist figure 1 Among them, the charging system 1 is connected between a power supply terminal Vs and a battery BAT, and is used to output a charging current I to charge the battery BAT. The power supply terminal Vs can be a general AC power output terminal, a power adapter, or other electronic devices with power output functions; in this article, the power supply terminal Vs provides an AC power supply as an example for illustration.

[0077] The charging system 1 includes a power conversion module 10 , a charging control module 12 , a first LED 14 , and a second LED 16 . A power output terminal OUT of the power conversion module 10 is connected to the positive terminal of th...

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PUM

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Abstract

The invention provides a charging system which comprises a first light emitting diode, a second light emitting diode, a power conversion module and a charging control module. The charging control module comprises a control unit and a comparator. The comparator is electrically connected with the power conversion module. When voltage of a battery is lower than or equal with critical voltage, the control unit drives the first light emitting diode for realizing conduction; and when the voltage of the battery is higher than the critical voltage, the control unit drives the second light emitting diode for realizing conduction. When the voltage of the battery is lower than or equal with rated voltage, the comparator makes the power conversion module supply constant current for charging the battery; and when the voltage of the battery is higher than the rated voltage, the control unit makes the power conversion module supply constant voltage for charging the battery.

Description

technical field [0001] The present invention relates to charging systems, and more particularly to charging systems that can indicate whether a battery is fully charged. Background technique [0002] Generally speaking, the charging stand used to charge the battery is provided with an indicator light indicating the working status of the charging stand. For example, the red indicator light is on to indicate that the charging stand is charging the rechargeable battery, and the green indicator light is on to indicate that the charging stand is charging. The battery is almost fully charged; moreover, when both the red indicator light and the green indicator light are off, it means that there is no battery on the charging stand. [0003] However, when the indicator switch module on the traditional charging stand uses red light emitting diodes and green light emitting diodes as indicator lights, it is mainly to design two sets of driving circuits to individually control the switch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/0086H02J7/0047H02J7/0049H02J7/0071H02J7/04H02J7/007182
Inventor 黄硕国沈琦顾瑜姬
Owner CHICONY POWER TECH CO LTD