Minimum output selection circuit and battery charging and discharging circuit

A technology of output selection and circuit, which is applied in the electronic field, can solve the problems of small overcharge, etc., and achieve the effect of low power consumption and reduced overshoot

Active Publication Date: 2019-12-27
SHANGHAI ANALOGY SEMICON TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, this kind of architecture is very common in constant voltage charge and discharge and constant current charge and discharge power supplies. In constant voltage charge and discharge and constant current charge and discharge power supplies, it is required to switch from constant current charge and discharge to constant voltage charge and discharge in a very short time. Moreover, the overcharge should be as small as possible, and the traditional minimum output selector cannot achieve the effect well.

Method used

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  • Minimum output selection circuit and battery charging and discharging circuit
  • Minimum output selection circuit and battery charging and discharging circuit
  • Minimum output selection circuit and battery charging and discharging circuit

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Embodiment Construction

[0027] Various aspects and examples of the application will now be described. The following description provides specific details for a thorough understanding and enabling description of these examples. However, it will be understood by those skilled in the art that this application may be practiced without many of these details.

[0028] Also, some well-known structures or functions may not be shown or described in detail for the sake of brevity and to avoid unnecessarily obscuring the related description.

[0029] The terminology used in the description given below is intended to be interpreted in its broadest reasonable manner, even though it is used in conjunction with the detailed description of certain specific examples of this application. Even certain terms may be emphasized below, however, any terms that are intended to be interpreted in any limited manner will be explicitly and specifically defined in this Detailed Description section.

[0030] The application disc...

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PUM

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Abstract

The invention discloses a minimum output selection circuit and a battery charging and discharging circuit. The minimum output selection circuit includes at least two feedback branches connected with an output end in parallel, wherein each feedback branch comprises an operational amplifier, a current limiting circuit, a clamping circuit and a capacitor, an output end of the operational amplifier isconnected with the current limiting circuit, an output end of the current limiting circuit is connected with the clamping circuit, the clamping circuit is connected with the output end, and the capacitor is connected between the output end and one input end of the operational amplifier.

Description

technical field [0001] The invention generally relates to the field of electronic technology, and in particular relates to a minimum output selection circuit and a battery charging and discharging circuit. Background technique [0002] Energy consumption has always been a common problem that needs to be faced all over the world. The market expects safer, cleaner, more efficient and lower cost power supplies. This gives rise to solutions such as hybrid and electric vehicles, solar and wind energy technologies, all of which have a common key element of lithium-ion batteries. With the rapid growth of these three major fields, the manufacturing and production of lithium-ion batteries is becoming more and more important. During the manufacturing process of lithium-ion batteries, it is necessary to conduct electrical tests on lithium-ion batteries, and it is necessary to use the minimum output selector to select constant voltage charging or discharging or It is constant current ...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H02J7/00G01R31/385
CPCG01R31/3865H02J7/0029H02J7/0068
Inventor许同李强
OwnerSHANGHAI ANALOGY SEMICON TECH LTD