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A circuit and method for realizing full-cycle charging and discharging of multiple battery packs

A charge-discharge circuit and battery pack technology, applied in the direction of secondary battery charge/discharge, battery circuit device, circuit device, etc., can solve the problem of inability to realize full cycle charge and discharge, and achieve the effect of easy operation and strong reliability

Active Publication Date: 2018-02-27
CHENGDU UNI LINK ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a simple, easy to operate, and reliable circuit and method for realizing full-cycle charging and discharging of multiple battery packs, and solve the problem that the prior art cannot realize full-cycle charging. discharge problem

Method used

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  • A circuit and method for realizing full-cycle charging and discharging of multiple battery packs
  • A circuit and method for realizing full-cycle charging and discharging of multiple battery packs
  • A circuit and method for realizing full-cycle charging and discharging of multiple battery packs

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Embodiment Construction

[0034] Describe technical scheme of the present invention in further detail below in conjunction with accompanying drawing: as figure 1 As shown, a circuit for realizing full-cycle charging and discharging of multiple battery packs includes multiple parallel battery modules, and the battery modules use positive and negative two wires for input and output; as shown in FIG. figure 2 As shown, the battery module includes a battery, a charging MOS tube, a discharging MOS tube, a current detection module, a relay and a control module, and the charging MOS tube, the discharging MOS tube, the current detection module, the relay and the battery are connected in series The voltage sampling input end of the control module is connected to the battery, the current sampling input end of the control module is connected to the current detection module, the first MOS tube control output end of the control module is connected to the charging MOS tube, and the second MOS tube of the control mod...

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Abstract

The invention discloses a circuit for realizing full-cycle charging and discharging of multiple battery packs and a method for the circuit. The circuit comprises a plurality of battery modules which are connected with one another in parallel, wherein each battery module comprises a battery, a charging metal oxide semiconductor (MOS) tube, a discharging MOS tube, a current detection module, a relay and a control module; each charging MOS tube, each discharging MOS tube, each current detection module, each relay and each battery are connected with one another in series; a voltage sampling input end of each control module is connected with the corresponding battery; a current sampling input end of each control module is connected with the corresponding current detection module; a first MOS tube control output end of each control module is connected with the corresponding charging MOS tube; and a second MOS tube control output end of each control module is connected with the corresponding discharging MOS tube. Through control on opening and closing of the charging MOS tubes and the discharging MOS tubes, the problem that multiple battery packs which are different in voltage level are charged and discharged by one another due to parallel connection is solved; and charging and discharging full-cycle processes of each battery module are realized under the condition that all battery modules are all in a parallel bus loop.

Description

technical field [0001] The invention relates to a circuit and a method for realizing full-cycle charging and discharging of multiple battery packs. Background technique [0002] With the vigorous development of electronic technology, the use of medium and large battery packs is increasing. During the production, testing and use of these battery packs, many charging and discharging processes are used. [0003] The existing charging equipment or discharging equipment has the following disadvantages: [0004] 1. The battery packs need to use the same type of battery modules for parallel use, that is, the parallel battery packs require the same voltage for each battery, and it is not possible to parallel input and output battery modules of completely different types and voltage levels. Because in the battery pack, the difference between the monomers always exists. Take the capacity as an example, the difference will never disappear, but will gradually deteriorate. The same cu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H01M10/44
CPCY02E60/10
Inventor 毛珂
Owner CHENGDU UNI LINK ENERGY
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