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Balancing circuit, to-be-charged device and charge control method

A balanced circuit and charging technology, which is applied in the electronic field and can solve the problems of low efficiency of charging equipment

Active Publication Date: 2018-06-05
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the equipment to be charged has the problem of low efficiency in voltage equalization

Method used

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  • Balancing circuit, to-be-charged device and charge control method
  • Balancing circuit, to-be-charged device and charge control method
  • Balancing circuit, to-be-charged device and charge control method

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Embodiment Construction

[0058] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0059] It should be understood that the equalization circuit in the embodiment of the present application may be applied to a scenario where multiple battery cells are charged in series.

[0060] figure 1 is a schematic structural diagram of an equalization circuit according to an embodiment of the present application. Depend on figure 1 As shown, the equalization circuit 33 includes:

[0061] The first conversion unit 331 is configured to receive the DC voltage output by the first cell 131, and convert the DC voltage output by the first cell 131 into a first AC voltage;

[0062] The first resonance unit 332 is configured to receive the first AC voltage and convert the first AC voltage into a second AC voltage in a resonant manner, wherein the amplitude of the second AC voltage is greater than th...

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PUM

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Abstract

The invention provides a balancing circuit, a to-be-charged device and a charge control method. The balancing circuit (33) includes a first conversion unit (331) used for receiving DC voltage output by a first cell (131) and converting DC voltage output by the first core to a first AC voltage; a first resonance unit (332) used for receiving first AC voltage and converting the first AC voltage to second AC voltage, wherein the amplitude of the second AC voltage is greater than the amplitude of the first AC voltage; a first capacity coupling unit (333) and a second conversion unit (334), whereinthe first capacity coupling unit (333) couples second AC voltage to the second conversion unit in a capacity coupling manner and the second conversion unit converts the second AC voltage to first charging voltage and charges a second cell (132).

Description

technical field [0001] The embodiments of the present application relate to the field of electronic technology, and more specifically, relate to an equalizing circuit, a device to be charged, and a charging control method. Background technique [0002] Devices to be charged (such as smart phones) have increasingly become an indispensable tool in consumers' work and life, but the devices to be charged also have the problems of low charging efficiency and long charging time. [0003] When a group of cells in the device to be charged is charged in series, each cell should be charged in a balanced manner, otherwise the performance and life of the cells will be affected during use. However, the equipment to be charged has a problem of low efficiency in performing voltage equalization. Contents of the invention [0004] The present application provides an equalizing circuit, a device to be charged and a charging control method, which can improve the efficiency of equalizing vol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/0014H02M3/01H02M3/33573H02J2207/20H02J7/0071Y02B70/10H02M1/007H02M7/4815H02J7/0019
Inventor 张加亮万世铭田晨陈社彪李家达张俊
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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