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Quick charging portable power source

A mobile power supply and charging circuit technology, applied in electric vehicles, battery circuit devices, emergency protection circuit devices, etc., can solve problems such as low power conversion efficiency and energy loss, and achieve high power conversion efficiency, shortened charging time, and safety performance. high effect

Active Publication Date: 2015-07-29
迈思普电子股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The battery disclosed in the above patents discharges externally through the DC-DC boost circuit of the power supply. However, when the electric energy of the battery is boosted, there must be energy loss, resulting in low power conversion efficiency.

Method used

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Embodiment Construction

[0025] Please refer to figure 1 and figure 2 As shown, it shows the specific structure of the preferred embodiment of the present invention, which is a rapid charging mobile power supply, and its structure includes four modules: a charging circuit 10, a battery protection board 20, an output circuit 30 and an MCU 40. Wherein, the charging circuit 10 is electrically connected to the power input terminal of the battery protection board 20 to realize the charging function of the lithium titanate battery 21 . The output circuit 30 is electrically connected to the power output end of the battery protection board 20 to output the electric energy of the lithium titanate battery 21 to rapidly charge electronic products. The MCU 40 is electrically connected to the charging circuit 10 , the battery protection board 20 , and the output circuit 30 , and detects the voltage change of the lithium titanate battery 21 in real time to realize charge and discharge control and ensure charging ...

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Abstract

The invention discloses a quick charging portable power source. The quick charging portable power source comprises a lithium titanate battery mounted on a battery protecting panel, a charging circuit for charging the lithium titanate battery, an output circuit for quickly charging an electronic product through power output of the lithium titanate battery, and an MCU (microprogrammed control unit) for achieving charging and discharging control. The battery protecting panel is provided with a battery protecting circuit and a battery voltage divider resistor which are applicable to the lithium titanate battery; the battery voltage divider resistor is composed of a pull-down resistor R9 with a nominal resistance of 820 R, and the pull-down resistor R9 is loaded on the voltage detecting end WD01+VDD of the circuit of the battery protecting panel so that the voltage of the FB point of the circuit corresponds to the standard value of the lithium titanate battery. By means of the design, the quick charging portable power source has the advantages of being high in charging speed, security performance and conversion efficiency.

Description

technical field [0001] The invention relates to the technology in the field of mobile power supplies, in particular to a fast-charging mobile power supply. Background technique [0002] Traditional mobile power supplies generally use lithium-ion batteries for energy storage, and their usage rates are all in the range of 1C. Charging and discharging are realized by 5V step-down charging and output boosting. [0003] For example, Chinese invention patent 201210071774.4 discloses a mobile power supply, which includes a battery, a charging control circuit, a cell protection circuit, an MCU control circuit, and a DC-DC boost circuit. The charging control circuit is provided with an input that can be connected to an external power supply. terminal, the output terminal of the charging control circuit is electrically connected to the input terminal of the cell protection circuit, the storage battery is electrically connected to the cell protection circuit, the cell protection circui...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02H7/18H02J7/0034H02J7/00304H02J7/00302H02J7/0029H02J7/00308H02J7/00
Inventor 魏忠
Owner 迈思普电子股份有限公司
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