TW200701582A - Apparatus for protecting battery cells - Google Patents

Apparatus for protecting battery cells

Info

Publication number
TW200701582A
TW200701582A TW094120409A TW94120409A TW200701582A TW 200701582 A TW200701582 A TW 200701582A TW 094120409 A TW094120409 A TW 094120409A TW 94120409 A TW94120409 A TW 94120409A TW 200701582 A TW200701582 A TW 200701582A
Authority
TW
Taiwan
Prior art keywords
battery cells
voltage
current
analog
digital
Prior art date
Application number
TW094120409A
Other languages
Chinese (zh)
Inventor
Ying-Yin Chang
Jui-Pin Tsai
Wen-Yi Chen
Chia-Ling Lin
Original Assignee
Dynapack Internat Technology Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dynapack Internat Technology Corp filed Critical Dynapack Internat Technology Corp
Priority to TW094120409A priority Critical patent/TW200701582A/en
Publication of TW200701582A publication Critical patent/TW200701582A/en

Links

Landscapes

  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Protection Of Static Devices (AREA)

Abstract

The present invention discloses an apparatus for protecting battery cells, comprising a voltage analog-to-digital converter (ADC) for receiving an analog voltage signal from the battery cells having a plurality of cell units connected in series and generating a digital voltage signal representing a voltage value; a current analog-to-digital converter for receiving an analog current signal from the battery cells and generating a digital current signal representing a current value; an impedance calculator for receiving the digital signals from the voltage ADC and current ADC and obtaining an internal impedance by dividing the voltage value by the current value; and a control unit for disconnecting the battery cells and an external load when the internal impedance is not within a predetermined range having a lower threshold and an upper threshold. In addition, the control unit monitors the internal impedance all the time during charging and discharging of the battery cells.
TW094120409A 2005-06-20 2005-06-20 Apparatus for protecting battery cells TW200701582A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW094120409A TW200701582A (en) 2005-06-20 2005-06-20 Apparatus for protecting battery cells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW094120409A TW200701582A (en) 2005-06-20 2005-06-20 Apparatus for protecting battery cells

Publications (1)

Publication Number Publication Date
TW200701582A true TW200701582A (en) 2007-01-01

Family

ID=57910402

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094120409A TW200701582A (en) 2005-06-20 2005-06-20 Apparatus for protecting battery cells

Country Status (1)

Country Link
TW (1) TW200701582A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI427309B (en) * 2011-10-21 2014-02-21 Simplo Technology Company Ltd Voltage calibration method
CN105203958A (en) * 2014-06-30 2015-12-30 精工电子有限公司 Battery state monitoring circuit and battery device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI427309B (en) * 2011-10-21 2014-02-21 Simplo Technology Company Ltd Voltage calibration method
CN105203958A (en) * 2014-06-30 2015-12-30 精工电子有限公司 Battery state monitoring circuit and battery device
CN105203958B (en) * 2014-06-30 2019-03-12 艾普凌科有限公司 Battery monitor and cell apparatus

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