Constant voltage and current limiting pulse charging control system and its charging method

A technology of pulse charging and control system, applied in secondary battery charging/discharging, battery circuit devices, different battery charging, etc., can solve the problems of small acceptable current, slow charging speed, single constant voltage charging, etc., to achieve Fast charging speed, high work efficiency, and the effect of ensuring safe charging

Inactive Publication Date: 2018-05-15
NANJING NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The charging methods of the existing solar charge controllers all use a relatively simple constant voltage charging or constant current charging, and a slightly more ideal one is multi-stage charging.
However, according to Maas's law, during the charging process of the battery, the acceptable current of the battery will gradually decrease with the deepening of the charging process, so the conventional charge controller will make the battery acceptable due to the polarization between the plates. The current becomes smaller, causing the charging speed to be too slow

Method used

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  • Constant voltage and current limiting pulse charging control system and its charging method
  • Constant voltage and current limiting pulse charging control system and its charging method
  • Constant voltage and current limiting pulse charging control system and its charging method

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Embodiment Construction

[0034] The constant voltage current limiting pulse charging control system of this embodiment mainly includes an AVR128 single-chip microcomputer, a constant voltage pulse charging circuit, a battery temperature detection circuit, a voltage detection circuit, a button circuit, a clock circuit, and an LCD display circuit. The main function of the AVR128 single-chip microcomputer is to assume the role of the charge controller in the present invention. The main function is to detect battery voltage, battery temperature, charging current, power supply voltage data, accept button input from the button circuit, and control the voltage amplitude during charging. And pulse duty cycle. The constant voltage current limiting pulse charging part is mainly composed of two MOS tubes and two MOS tube driving circuits. One group of MOS tubes and its driving circuit function is to adjust the voltage amplitude of the constant voltage current limiting pulse charging, and the other group The funct...

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Abstract

The invention discloses a constant-voltage current-limiting pulse charging control system and a charging method thereof. The control system comprises a charging controller, a power supply input module, a power supply output module and a charging module, wherein the charging controller is connected with a photovoltaic cell panel through the power supply input module and is connected with a storage battery through the power supply output module; the charging module comprises a constant-voltage charging circuit and a pulse charging circuit which are connected with the charging controller; the charging controller charges the storage battery through the charging module. According to the charging method with combination of constant-voltage charging and pulse charging, approximation to a maximum acceptable current curve, involved in Mas law, of the storage battery can be realized, so that higher current is utilized for charging in the same time, polarization of a polar plate in a charging process is effectively reduced, and the storage battery is protected better.

Description

Technical field [0001] The invention relates to a method for constant voltage and current-limiting pulse charging, which uses a charging controller to store energy for a DC power supply in a photovoltaic system, and belongs to the technical field of battery charging. Background technique [0002] The core problem of using solar energy is to solve the problem of energy storage. The charging methods of the existing solar charge controllers all use a relatively single constant voltage charging or constant current charging, and a slightly more ideal is multi-stage charging. However, according to Mars’s law, during the charging process of the battery, the acceptable current of the battery will gradually decrease with the depth of the charging process, so the conventional charge controller will make the battery acceptable due to the polarization between the plates. The current becomes smaller, causing the charging speed to be too slow. Summary of the invention [0003] In view of this...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H01M10/44
CPCH01M10/44H01M10/443H02J7/00H02J7/0047H02J7/0071H02J7/00711H02J7/0091Y02E60/10
Inventor 申忠宇王涛赵瑾
Owner NANJING NORMAL UNIVERSITY
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