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Device And Method For Measuring Electric Capacity Of Cell Module

A technology for battery modules and battery power, applied in measuring devices, measuring electrical variables, measuring electricity, etc., to improve estimation and overcome measurement errors

Inactive Publication Date: 2016-07-13
UPI SEMICON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Or, when the battery of the current portable electronic device is close to being fully charged, the battery percentage may jump from one value to another in a short period of time (such as jumping from 95% to 100% instantaneously)

Method used

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  • Device And Method For Measuring Electric Capacity Of Cell Module
  • Device And Method For Measuring Electric Capacity Of Cell Module
  • Device And Method For Measuring Electric Capacity Of Cell Module

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Embodiment Construction

[0066] As used throughout this specification (including the claims), the term "coupled" may refer to any connection means, direct or indirect. For example, if it is described in the text that a first device is coupled to a second device, it should be interpreted that the first device can be directly connected to the second device, or the first device can be connected through other devices or some kind of connection means. indirectly connected to the second device. In addition, wherever possible, elements / components / steps using the same reference numerals in the drawings and embodiments represent the same or similar parts. Elements / components / steps using the same symbols or using the same terms in different embodiments can refer to related descriptions.

[0067] Firstly, the relationship between the current and voltage of the general battery module and the battery capacity is described.

[0068] figure 1 is a graph showing the relationship between the current and voltage of ...

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Abstract

A device and method for measuring electric capacity of a cell module is provided. The device comprises a voltage measurement unit and a calculating and processing unit. The voltage measurement unit is configured to measure an instant voltage of the cell module. The calculation and processing unit compares the instant voltage with a fully-charged voltage of the cell module. When the instant voltage is smaller than the fully-charged voltage, the calculation and processing unit calculates a cell capacity displaying value of the cell module according to a corresponding threshold capacity, the instant voltage and the fully-charged voltage. The fully-charged voltage is a voltage value of the cell module when an electric capacity of the cell module enters a quasi fully-charged range.

Description

technical field [0001] The present invention relates to an electronic device with a battery, and in particular to a power measuring device and method for a battery module. Background technique [0002] In order to be convenient for users to carry and use, most of today's portable electronic devices (such as notebook computers or smart phones) are assembled with rechargeable battery modules. And it is equipped with a mechanism to measure the power of the battery module in real time. Accordingly, the user can know the remaining power of the portable electronic device at any time, so as to judge the available time of the portable electronic device and use the external power supply for charging in time. [0003] Current electronic devices can continuously measure the power of the battery module while the battery module is being charged. Generally, a coulomb meter is used to measure the charging power to monitor the power state of the battery module during charging. For exampl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36
CPCG01R31/3835G01R31/3842
Inventor 邓国良陈立伟
Owner UPI SEMICON CORP