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Cell management module and cell management method

A battery management module and battery management technology, applied in battery circuit devices, secondary battery charging/discharging, secondary battery repair/maintenance, etc., can solve the problems of high component cost and circuit area, and achieve the effect of reducing component cost

Inactive Publication Date: 2012-08-01
NEOTEC SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the known architecture requires high component cost and circuit area

Method used

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  • Cell management module and cell management method
  • Cell management module and cell management method
  • Cell management module and cell management method

Examples

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Embodiment Construction

[0042] The direction of the present invention discussed here is a battery management module and its method. In order to have a thorough understanding of the present invention, detailed steps and structures will be presented in the following description. It is evident that the practice of the invention is not limited to specific details familiar to those skilled in the relevant art. In other instances, well-known structures or steps are not described in detail in order to avoid unnecessarily limiting the invention. The preferred embodiments of the present invention will be described in detail as follows, however, the present invention can be widely implemented in other embodiments besides these detailed descriptions, and the scope of the present invention is not limited, which is subject to the claims.

[0043] figure 2 A block diagram of a battery management system 20 according to an embodiment of the present invention is shown. refer to figure 2 , the battery management s...

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Abstract

The invention discloses a cell management module of a chargeable cell unit. The cell management module comprises a controller, a load element, a charging device, a discharging transistor element, and a switching transistor element. The charging device is used for providing a charging current in order to charge the chargeable cell unit. The load element is used for receiving a discharging current from the chargeable cell unit. The controller is connected to the chargeable cell unit, and is used for detecting a working condition of the chargeable cell unit in order to generate a first control signal and a second control signal. The discharging transistor element is used for disconnecting the chargeable cell unit, the charging device, and the load element, according to the first control signal. The switching transistor element is selectively conducted according to the second control signal, wherein the second control signal is a direct current signal or a pulse signal. The cell management module and the cell management method of the invention assist in reducing element cost and decreasing a circuit area.

Description

technical field [0001] The invention relates to a battery management module and a battery management method, which are used to manage a rechargeable battery unit. Background technique [0002] Current portable electronic devices, such as notebook computers, mobile phones, personal digital assistants (PDAs) and MP3 players, generally use battery modules as power supply sources. The battery system typically contains one or more lithium-ion ("Li-ion") or nickel metal hydride ("NiMH") battery cells of a rechargeable battery. figure 1 A block schematic diagram of a known battery management system 10 is shown. refer to figure 1 A battery unit 12 is composed of two battery cells connected in series, and a battery management unit 14 is coupled to the battery unit 12 . The battery management unit 14 includes a capacity monitoring unit 142 and a battery protection unit 144 . The battery management unit 14 is used to detect safety conditions in the battery management system 10 , su...

Claims

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Application Information

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IPC IPC(8): H02J7/00H02H7/18H01M10/42H01M10/44
CPCY02E60/12Y02E60/10
Inventor 何昌祐许宏安
Owner NEOTEC SEMICON
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