JPH0475430A - Rechargeable power unit - Google Patents

Rechargeable power unit

Info

Publication number
JPH0475430A
JPH0475430A JP18799090A JP18799090A JPH0475430A JP H0475430 A JPH0475430 A JP H0475430A JP 18799090 A JP18799090 A JP 18799090A JP 18799090 A JP18799090 A JP 18799090A JP H0475430 A JPH0475430 A JP H0475430A
Authority
JP
Japan
Prior art keywords
battery
charging
voltage
mosfet
circuit
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.)
Granted
Application number
JP18799090A
Other languages
Japanese (ja)
Other versions
JP2872365B2 (en
Inventor
Masataka Yamashita
Akira Yoshino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
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 Asahi Chemical Industry Co Ltd filed Critical Asahi Chemical Industry Co Ltd
Priority to JP18799090A priority Critical patent/JP2872365B2/en
Publication of JPH0475430A publication Critical patent/JPH0475430A/en
Application granted granted Critical
Publication of JP2872365B2 publication Critical patent/JP2872365B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a power having an overdischarge preventing mechanism and an overcharge preventing function by constituting a discharging circuit and a charging circuit of elements incorporating parasitic diodes in a charging power supply comprising a quick charge secondary battery.
CONSTITUTION: Upon droppage of battery 3 voltage below a predetermined level due to discharge, output voltage of a control means 5 causes transition of a MOSFET 41 from conducting state to interrupted state thus interrupting a battery 3 discharge circuit. When the battery 3 voltage is recovered due to charging through the parasitic diode 41A of the MOSFET 41, normal (low loss) charging takes place. When the battery 3 voltage exceeds a predetermined level due to charging, output voltage of the control means 5 causes transition of a MOSFET 42 from conducting state to interrupted state thus interrupting a battery 3 charging circuit. When the battery 3 voltage is recovered due to charging through the parasitic diode 42A of the MOSFET 42, normal (low loss) discharge takes place.
COPYRIGHT: (C)1992,JPO&Japio
JP18799090A 1990-07-18 1990-07-18 Rechargeable power supply Expired - Lifetime JP2872365B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18799090A JP2872365B2 (en) 1990-07-18 1990-07-18 Rechargeable power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18799090A JP2872365B2 (en) 1990-07-18 1990-07-18 Rechargeable power supply

Publications (2)

Publication Number Publication Date
JPH0475430A true JPH0475430A (en) 1992-03-10
JP2872365B2 JP2872365B2 (en) 1999-03-17

Family

ID=16215695

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18799090A Expired - Lifetime JP2872365B2 (en) 1990-07-18 1990-07-18 Rechargeable power supply

Country Status (1)

Country Link
JP (1) JP2872365B2 (en)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05276682A (en) * 1992-03-26 1993-10-22 Nippon Motorola Ltd Charge controller for battery
JPH0865907A (en) * 1994-08-22 1996-03-08 Fuji Elelctrochem Co Ltd Current detecting circuit and overcharge preventive device
EP0760547A2 (en) * 1995-08-25 1997-03-05 Nec Corporation Battery pack with a lithium ion secondary battery
JPH09266634A (en) * 1996-03-28 1997-10-07 Sanyo Electric Co Ltd Protection circuit of secondary battery
US5789900A (en) * 1994-12-05 1998-08-04 Fuji Photo Film Co., Ltd. Device for protecting a secondary battery from overcharge and overdischarge
CN1063590C (en) * 1995-04-03 2001-03-21 精工电子工业株式会社 Charge and discharge control circuit
US6222346B1 (en) 1999-08-18 2001-04-24 Matsushita Electric Industrial Co., Ltd. Battery protection device
EP1107344A1 (en) * 1999-05-17 2001-06-13 Matsushita Electric Industrial Co., Ltd. Circuit and device for protecting secondary battery
CN1088275C (en) * 1996-06-14 2002-07-24 精工电子工业株式会社 Charge/discharge control circuit and charging type power-supply unit
US6437541B1 (en) * 2001-01-05 2002-08-20 Seiko Instruments Inc. Battery state monitoring circuit and battery device
US6563292B2 (en) 2000-12-26 2003-05-13 Ricoh Company, Ltd. Charge/discharge protection circuit with latch circuit for protecting a charge control FET from overheating
JP2006281405A (en) * 2005-04-04 2006-10-19 Hitachi Koki Co Ltd Cordless power tool
JP2007520180A (en) * 2003-10-14 2007-07-19 ブラック　アンド　デッカー　インク Secondary battery, power tool, charger, and protection method, protection circuit, and protection device for battery pack adapted to provide protection from battery pack failure conditions
JP2007330069A (en) * 2006-06-09 2007-12-20 Ntt Facilities Inc Battery management system
JP2008160930A (en) * 2006-12-21 2008-07-10 Seiko Instruments Inc Charging-type power supply device and semiconductor device
EP1708553A3 (en) * 2005-03-28 2008-07-23 Mitsumi Electric Co., Ltd. Secondary battery protecting module and lead mounting method
US7589502B2 (en) 2006-01-18 2009-09-15 Seiko Instruments Inc. Charge and discharge control circuit with variable switching delay time function and charging-type supply device using the control circuit
JP2010206974A (en) * 2009-03-04 2010-09-16 Nec Computertechno Ltd Power supply system and operating method thereof
US7952330B2 (en) 2005-04-20 2011-05-31 Panasonic Corporation Secondary battery protection circuit, battery pack and thermosensitive protection switch device
US7969116B2 (en) 2005-04-04 2011-06-28 Hitachi Koki Co., Ltd. Power pack and cordless power tool having the same
US8203309B2 (en) 2007-10-19 2012-06-19 Panasonic Corporation Battery pack, and battery system
US9397370B2 (en) 1999-06-25 2016-07-19 The Board Of Trustees Of The University Of Illinois Single and multiple cell battery with built-in controller

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1421063A (en) * 1999-10-22 2003-05-28 泰科电子有限公司 Devices and methods for protection of rechargeable elements
US6340880B1 (en) 1999-11-11 2002-01-22 Mitsumi Electric Co., Ltd. Method of protecting a chargeable electric cell
JP3844063B2 (en) 2002-02-01 2006-11-08 ミツミ電機株式会社 Secondary battery protection circuit
JP4186052B2 (en) 2003-03-26 2008-11-26 ミツミ電機株式会社 Battery pack with charge control function

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05276682A (en) * 1992-03-26 1993-10-22 Nippon Motorola Ltd Charge controller for battery
JPH0865907A (en) * 1994-08-22 1996-03-08 Fuji Elelctrochem Co Ltd Current detecting circuit and overcharge preventive device
US5789900A (en) * 1994-12-05 1998-08-04 Fuji Photo Film Co., Ltd. Device for protecting a secondary battery from overcharge and overdischarge
CN1063590C (en) * 1995-04-03 2001-03-21 精工电子工业株式会社 Charge and discharge control circuit
EP0760547B1 (en) * 1995-08-25 2001-12-19 Nec Corporation Battery pack with a lithium ion secondary battery
EP0760547A2 (en) * 1995-08-25 1997-03-05 Nec Corporation Battery pack with a lithium ion secondary battery
JPH09266634A (en) * 1996-03-28 1997-10-07 Sanyo Electric Co Ltd Protection circuit of secondary battery
CN1088275C (en) * 1996-06-14 2002-07-24 精工电子工业株式会社 Charge/discharge control circuit and charging type power-supply unit
EP1107344A1 (en) * 1999-05-17 2001-06-13 Matsushita Electric Industrial Co., Ltd. Circuit and device for protecting secondary battery
EP1107344A4 (en) * 1999-05-17 2007-08-15 Matsushita Electric Ind Co Ltd Circuit and device for protecting secondary battery
US9397370B2 (en) 1999-06-25 2016-07-19 The Board Of Trustees Of The University Of Illinois Single and multiple cell battery with built-in controller
US6222346B1 (en) 1999-08-18 2001-04-24 Matsushita Electric Industrial Co., Ltd. Battery protection device
US6563292B2 (en) 2000-12-26 2003-05-13 Ricoh Company, Ltd. Charge/discharge protection circuit with latch circuit for protecting a charge control FET from overheating
US6768289B2 (en) 2000-12-26 2004-07-27 Ricoh Company, Ltd. Charge/discharge protection circuit with latch circuit for protecting a charge control FET from overheating in a portable device
US6437541B1 (en) * 2001-01-05 2002-08-20 Seiko Instruments Inc. Battery state monitoring circuit and battery device
JP2007520180A (en) * 2003-10-14 2007-07-19 ブラック　アンド　デッカー　インク Secondary battery, power tool, charger, and protection method, protection circuit, and protection device for battery pack adapted to provide protection from battery pack failure conditions
EP1708553A3 (en) * 2005-03-28 2008-07-23 Mitsumi Electric Co., Ltd. Secondary battery protecting module and lead mounting method
US8305768B2 (en) 2005-03-28 2012-11-06 Mitsumi Electric Co., Ltd. Secondary battery protecting module and lead mounting method
US7969116B2 (en) 2005-04-04 2011-06-28 Hitachi Koki Co., Ltd. Power pack and cordless power tool having the same
JP2006281405A (en) * 2005-04-04 2006-10-19 Hitachi Koki Co Ltd Cordless power tool
US7952330B2 (en) 2005-04-20 2011-05-31 Panasonic Corporation Secondary battery protection circuit, battery pack and thermosensitive protection switch device
US7589502B2 (en) 2006-01-18 2009-09-15 Seiko Instruments Inc. Charge and discharge control circuit with variable switching delay time function and charging-type supply device using the control circuit
TWI403072B (en) * 2006-01-18 2013-07-21 Seiko Instr Inc Charging and discharging control circuit and charging type power supply device
JP2007330069A (en) * 2006-06-09 2007-12-20 Ntt Facilities Inc Battery management system
JP2008160930A (en) * 2006-12-21 2008-07-10 Seiko Instruments Inc Charging-type power supply device and semiconductor device
JP4546445B2 (en) * 2006-12-21 2010-09-15 セイコーインスツル株式会社 Rechargeable power supply device and semiconductor device
US8203309B2 (en) 2007-10-19 2012-06-19 Panasonic Corporation Battery pack, and battery system
JP2010206974A (en) * 2009-03-04 2010-09-16 Nec Computertechno Ltd Power supply system and operating method thereof

Also Published As

Publication number Publication date
JP2872365B2 (en) 1999-03-17

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