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BMS active equalization battery management circuit

A battery management circuit, active balancing technology, applied in charge balancing circuits, battery circuit devices, circuit devices, etc., can solve the problems of large battery voltage fluctuations, affecting battery life, long time, etc., to achieve a reduced ripple factor, Improves battery life and the effect of charge-discharge coordination

Pending Publication Date: 2022-02-18
捷程科技(无锡)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a BMS active balancing battery management circuit, which aims to solve the problem that the charging of electric vehicles takes a long time in the prior art, and the use of fast charging will cause large fluctuations in the internal voltage of the battery and affect the service life of the battery. technical problem

Method used

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  • BMS active equalization battery management circuit
  • BMS active equalization battery management circuit
  • BMS active equalization battery management circuit

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Embodiment Construction

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0021] In describing the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or element...

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Abstract

The invention relates to the technical field of battery management, in particular to a BMS active equalization battery management circuit. The BMS active equalization battery management circuit comprises a chip U1, a chip U2, a chip U3, a control module, equalization modules and filtering modules; through the multiple filtering modules, alternating-current components in pulsating direct-current voltage are reduced as much as possible, direct-current components of the pulsating direct-current voltage are reserved, the ripple coefficient of output voltage is reduced, the waveform becomes smooth, and therefore the service life of a battery is prolonged; and the current voltage of each single battery tends to be consistent through the plurality of equalization modules, so that charging and discharging are more coordinated, and the service life of the battery is prolonged.

Description

technical field [0001] The invention relates to the technical field of battery management, in particular to a BMS active balancing battery management circuit. Background technique [0002] Energy shortage is an important issue affecting the development of my country's national economy, and it is also a concern of the whole world. Energy conservation and emission reduction is a long-term strategic policy for my country's economic and social development, and it is also an extremely urgent task at present. my country's new energy vehicle power batteries account for more than 85% of the world's total, and improving power battery packs is of great importance. Taking into account the advantages of my country's rich rare earth resources and the world's leading battery production, it is imperative to develop high-energy, fast-charging, ultra-universal and long-range modular composite power battery packs. [0003] The charging of existing electric vehicles takes a long time, and th...

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J7/0014H02J7/00304
Inventor 李晓强
Owner 捷程科技(无锡)有限公司