JP6794042B2 - 充放電制御回路及びバッテリ装置 - Google Patents
充放電制御回路及びバッテリ装置 Download PDFInfo
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- JP6794042B2 JP6794042B2 JP2016215059A JP2016215059A JP6794042B2 JP 6794042 B2 JP6794042 B2 JP 6794042B2 JP 2016215059 A JP2016215059 A JP 2016215059A JP 2016215059 A JP2016215059 A JP 2016215059A JP 6794042 B2 JP6794042 B2 JP 6794042B2
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- voltage
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- terminal
- power supply
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- 238000001514 detection method Methods 0.000 claims description 65
- 238000010586 diagram Methods 0.000 description 8
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
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Classifications
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- H02J7/0021—
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- 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
- H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
-
- 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
- H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass 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
- H02J7/0025—Sequential battery discharge in systems with a plurality of batteries
-
- H02J7/0026—
-
- 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
-
- 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
-
- 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
- H02J7/00306—Overdischarge protection
-
- 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
- H02J7/00308—Overvoltage protection
-
- 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
- H02J7/00304—Overcurrent protection
-
- 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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
- Protection Of Static Devices (AREA)
Description
内部ショートした二次電池は、内部抵抗及び出力電圧が低下するので、並列に接続されている他の正常な二次電池から逆方向に電流が流れる。その逆方向電流は、内部ショートした二次電池の内部抵抗が低いため、大電流になる可能性がある。
本発明は、以上のような課題を解決するために考案されたものであり、二次電池の出力電圧が低下することのない安全性の高い充放電制御回路及びバッテリ装置を提供する。
並列に接続された二次電池の電圧の差を検出する、または並列に接続された二次電池に夫々接続され充放電を制御する充放電制御スイッチに逆方向の電流が流れたことを検出する電圧検出部を設ける構成とした。
バッテリ装置100は、二次電池1a、1bと、充放電制御スイッチ2a、2bと、充放電制御回路10を備えている。充放電制御回路10は、少なくとも、電圧検出部11と、制御部12を備えている。
電圧検出部11は、比較器111及び113と、電圧源112及び114を備えている。電圧源112及び114は、二次電池の内部ショートを検出するための所定値の電圧を出力する。
二次電池1aと二次電池1bが正常であればほぼ等しい電圧になっているので、電源端子VSS1と電源端子VSS2は、ほぼ等しい電圧になっている。従って、比較器111及び113は、非反転入力端子+の電圧より反転入力端子−の電圧が高いので、非検出を示すLレベルの信号を出力する。
バッテリ装置200は、少なくとも、電圧検出部21と、制御部22を有する充放電制御回路20を備えている。
電圧検出部21は、比較器211、213、221、223と、電圧源212、214、222、224を備えている。電圧源212及び214は、二次電池1bの内部ショートを検出するための所定値の電圧を出力する。電圧源222及び224は、二次電池1aの内部ショートを検出するための所定値の電圧を出力する。
二次電池1aと二次電池1bが正常であれば、充放電制御スイッチ2aと充放電制御スイッチ2bは、同じ向きに充放電電流が流れている。従って、比較器211及び213は一方がHレベルで他方がLレベルの信号を出力し、AND回路215はLレベルの信号を出力する。また、比較器221及び223は一方がHレベルで他方がLレベルの信号を出力し、AND回路225はLレベルの信号を出力する。
11、21 電圧検出部
12、22 制御部
111、113、211、213、221、223 比較器
Claims (2)
- 第一及び第二の外部端子の間に接続された第一及び第二の二次電池の充放電を制御する充放電制御回路であって、
前記第一及び第二の二次電池の第一電極が接続される第一電源端子と、
前記第一の二次電池の第二電極が接続される第一の第二電源端子と、
前記第二の二次電池の第二電極が接続される第二の第二電源端子と、
前記第一及び第二の二次電池の第二電極と夫々接続された第一及び第二の充放電制御スイッチと前記第二の外部端子の間の電圧が入力される電圧検出端子と、
前記第一の第二電源端子の電圧と前記第二の第二電源端子の電圧と前記電圧検出端子の電圧によって前記第一及び第二の充放電制御スイッチに逆方向の電流が流れたことを検出して、前記第一の二次電池又は前記第二の二次電池が内部ショートしたことを検出する電圧検出部と、
を備えことを特徴とする充放電制御回路。 - 第一及び第二の外部端子の間に接続された第一及び第二の二次電池と、
前記第一及び第二の二次電池と並列に接続された請求項1に記載の充放電制御回路と、
前記第一及び第二の二次電池と前記第二の外部端子の間に接続された第一及び第二の充放電制御スイッチと、
を備えたことを特徴とするバッテリー装置。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201562261474P | 2015-12-01 | 2015-12-01 | |
US62/261,474 | 2015-12-01 | ||
US15/241,957 | 2016-08-19 | ||
US15/241,957 US10361570B2 (en) | 2015-12-01 | 2016-08-19 | Charging/discharging control circuit and battery apparatus including voltage or current detection for secondary batteries |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2017104006A JP2017104006A (ja) | 2017-06-08 |
JP6794042B2 true JP6794042B2 (ja) | 2020-12-02 |
Family
ID=58778208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016215059A Active JP6794042B2 (ja) | 2015-12-01 | 2016-11-02 | 充放電制御回路及びバッテリ装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10361570B2 (ja) |
JP (1) | JP6794042B2 (ja) |
KR (1) | KR102628062B1 (ja) |
CN (1) | CN106936175B (ja) |
TW (1) | TWI738686B (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6903456B2 (ja) * | 2017-03-15 | 2021-07-14 | エイブリック株式会社 | 充放電制御回路およびバッテリ装置 |
US11495839B2 (en) * | 2017-10-18 | 2022-11-08 | Textron Innovations, Inc. | Internal battery heating |
US11035904B2 (en) | 2018-07-23 | 2021-06-15 | Samsung Sdi Co., Ltd. | Battery control apparatus and method for detecting internal short of battery |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1063590C (zh) * | 1995-04-03 | 2001-03-21 | 精工电子工业株式会社 | 充放电控制电路 |
JPH11215735A (ja) * | 1998-01-26 | 1999-08-06 | Oki Electric Ind Co Ltd | 電源用or回路 |
JP2001185228A (ja) | 1999-12-24 | 2001-07-06 | Sanyo Electric Co Ltd | 電池を備える電源装置 |
JP4739040B2 (ja) * | 2005-02-18 | 2011-08-03 | パナソニック株式会社 | 二次電池の内部短絡検出装置、二次電池の内部短絡検出方法、二次電池の電池パック及び電子機器 |
JP4398432B2 (ja) * | 2006-01-18 | 2010-01-13 | セイコーインスツル株式会社 | 充放電制御回路および充電式電源装置 |
JP5565603B2 (ja) * | 2009-01-23 | 2014-08-06 | ソニー株式会社 | 電力供給システムおよび電子機器 |
JP5376641B2 (ja) * | 2009-02-27 | 2013-12-25 | Necエナジーデバイス株式会社 | 電池装置 |
JP2011135656A (ja) * | 2009-12-22 | 2011-07-07 | Sanyo Electric Co Ltd | バッテリシステム及びこれを備える車両並びにバッテリシステムの内部短絡検出方法 |
JP6004350B2 (ja) * | 2011-07-29 | 2016-10-05 | パナソニックIpマネジメント株式会社 | 蓄電池集合体の充放電制御システム |
JP5781456B2 (ja) * | 2012-02-21 | 2015-09-24 | 株式会社ベイサン | 電力供給システム |
JP6028625B2 (ja) * | 2013-02-28 | 2016-11-16 | ミツミ電機株式会社 | 充放電制御回路及び充放電制御方法 |
EP2945243B1 (en) * | 2014-02-20 | 2020-08-12 | LG Chem, Ltd. | Apparatus, system and method for preventing damage to battery rack by means of voltage measurement |
-
2016
- 2016-08-19 US US15/241,957 patent/US10361570B2/en active Active
- 2016-11-02 JP JP2016215059A patent/JP6794042B2/ja active Active
- 2016-11-22 KR KR1020160155640A patent/KR102628062B1/ko active IP Right Grant
- 2016-11-24 TW TW105138534A patent/TWI738686B/zh active
- 2016-11-30 CN CN201611082153.0A patent/CN106936175B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
US20170155255A1 (en) | 2017-06-01 |
KR20170064467A (ko) | 2017-06-09 |
JP2017104006A (ja) | 2017-06-08 |
CN106936175B (zh) | 2021-06-22 |
TWI738686B (zh) | 2021-09-11 |
KR102628062B1 (ko) | 2024-01-22 |
CN106936175A (zh) | 2017-07-07 |
US10361570B2 (en) | 2019-07-23 |
TW201725823A (zh) | 2017-07-16 |
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