JP5134396B2 - バッテリ保護回路及びバッテリ装置 - Google Patents
バッテリ保護回路及びバッテリ装置 Download PDFInfo
- Publication number
- JP5134396B2 JP5134396B2 JP2008046374A JP2008046374A JP5134396B2 JP 5134396 B2 JP5134396 B2 JP 5134396B2 JP 2008046374 A JP2008046374 A JP 2008046374A JP 2008046374 A JP2008046374 A JP 2008046374A JP 5134396 B2 JP5134396 B2 JP 5134396B2
- Authority
- JP
- Japan
- Prior art keywords
- battery
- well
- terminal
- circuit
- voltage
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
- Protection Of Static Devices (AREA)
Description
まず、バッテリ保護回路の構成について説明する。図1は、バッテリ保護回路を示す図である。図2は、バッテリ保護回路を示すレイアウト図である。
ここで、バッテリ保護回路30がNサブの基板に形成されているが、図3に示すように、バッテリ保護回路40がPサブの基板に形成されてもよい。すると、寄生バイポーラトランジスタは、図2では、PNPパイポーラトランジスタであるが、図3では、NPNパイポーラトランジスタになる。また、ヒューズ20は、図2では、出力端子VOUTとバッテリBAT1の正極端子との間に設けられるが、図3では、出力端子VOUTとバッテリBAT4の負極端子との間に設けられる。
VDD……電源端子 VC1〜VC3……中間端子
VSS……接地端子 VOUT……出力端子
20……ヒューズ 30……バッテリ保護回路
31……論理回路 31a……リセット回路
32〜33……寄生バイポーラトランジスタ 32a〜32b、33b……Pウェル
34……プルダウン抵抗 36〜39……比較回路
36a〜39a……基準電圧回路
Claims (2)
- 直列接続する複数のバッテリを保護し、
最上段の前記バッテリの正極端子がスイッチ群を介して接続される電源端子と、
最下段の前記バッテリの負極端子が前記スイッチ群を介して接続される接地端子と、
前記バッテリ間の接続点が前記スイッチ群を介して接続される中間端子と、
前記バッテリ夫々の電圧を監視する複数の監視回路と、
前記バッテリの電圧が所定電圧以上になると、前記バッテリの充放電経路が遮断されるよう動作する論理回路と、
前記監視回路の回路を構成するためのウェルのうち、前記中間端子に接続される第一ウェルと、
前記論理回路の回路を構成するためのウェルのうち、前記第一ウェルに近接配置される第二ウェルと、
を備えるバッテリ保護回路であって、
前記第一ウェルを囲うように第三ウェルを設けた、
ことを特徴とするバッテリ保護回路。 - 前記複数のバッテリと、
前記スイッチ群と、
請求項1に記載のバッテリ保護回路と、
を備えることを特徴とするバッテリ装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008046374A JP5134396B2 (ja) | 2008-02-27 | 2008-02-27 | バッテリ保護回路及びバッテリ装置 |
TW098105806A TWI431884B (zh) | 2008-02-27 | 2009-02-24 | Battery protection circuit and battery device |
KR1020090015625A KR101523102B1 (ko) | 2008-02-27 | 2009-02-25 | 배터리 보호 회로 및 배터리 장치 |
US12/393,598 US7990669B2 (en) | 2008-02-27 | 2009-02-26 | Battery protection circuit and battery device |
CN2009100081313A CN101572422B (zh) | 2008-02-27 | 2009-02-26 | 电池保护电路及电池装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008046374A JP5134396B2 (ja) | 2008-02-27 | 2008-02-27 | バッテリ保護回路及びバッテリ装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009207276A JP2009207276A (ja) | 2009-09-10 |
JP5134396B2 true JP5134396B2 (ja) | 2013-01-30 |
Family
ID=40998071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008046374A Expired - Fee Related JP5134396B2 (ja) | 2008-02-27 | 2008-02-27 | バッテリ保護回路及びバッテリ装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7990669B2 (ja) |
JP (1) | JP5134396B2 (ja) |
KR (1) | KR101523102B1 (ja) |
CN (1) | CN101572422B (ja) |
TW (1) | TWI431884B (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5290476B1 (ja) * | 2011-09-14 | 2013-09-18 | 本田技研工業株式会社 | 電圧監視回路及び該電圧監視回路を搭載した車両 |
WO2020174299A1 (ja) * | 2019-02-25 | 2020-09-03 | 株式会社半導体エネルギー研究所 | 二次電池の保護回路及び二次電池の異常検知システム |
US11437830B2 (en) * | 2020-08-06 | 2022-09-06 | Apple Inc. | Architecture for multiple parallel secondary protectors for battery cells |
CN116762222A (zh) * | 2021-01-29 | 2023-09-15 | 松下新能源株式会社 | 电源装置及其制造方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6188731A (ja) * | 1984-10-04 | 1986-05-07 | シャープ株式会社 | 充放電制御装置 |
JP2000295777A (ja) | 1999-04-05 | 2000-10-20 | Seiko Instruments Inc | バッテリー装置 |
JP2006101609A (ja) * | 2004-09-29 | 2006-04-13 | Hitachi Ltd | 二次電池充放電制御回路およびセンシング無線端末 |
KR100624944B1 (ko) * | 2004-11-29 | 2006-09-18 | 삼성에스디아이 주식회사 | 배터리 팩의 보호회로 |
JP3833679B2 (ja) * | 2004-12-02 | 2006-10-18 | ソニー株式会社 | 電池パックおよび充電制御方法 |
JP4620571B2 (ja) * | 2005-11-21 | 2011-01-26 | ルネサスエレクトロニクス株式会社 | 電池電圧監視装置 |
EP1947729B1 (en) * | 2007-01-17 | 2010-09-22 | Samsung SDI Co., Ltd. | Hybrid battery |
-
2008
- 2008-02-27 JP JP2008046374A patent/JP5134396B2/ja not_active Expired - Fee Related
-
2009
- 2009-02-24 TW TW098105806A patent/TWI431884B/zh not_active IP Right Cessation
- 2009-02-25 KR KR1020090015625A patent/KR101523102B1/ko active IP Right Grant
- 2009-02-26 US US12/393,598 patent/US7990669B2/en not_active Expired - Fee Related
- 2009-02-26 CN CN2009100081313A patent/CN101572422B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR20090092711A (ko) | 2009-09-01 |
CN101572422B (zh) | 2013-09-18 |
TW200950245A (en) | 2009-12-01 |
KR101523102B1 (ko) | 2015-05-26 |
CN101572422A (zh) | 2009-11-04 |
US7990669B2 (en) | 2011-08-02 |
US20090213511A1 (en) | 2009-08-27 |
JP2009207276A (ja) | 2009-09-10 |
TWI431884B (zh) | 2014-03-21 |
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