JPH02193534A - Charging and discharging control mechanism - Google Patents

Charging and discharging control mechanism

Info

Publication number
JPH02193534A
JPH02193534A JP8910989A JP8910989A JPH02193534A JP H02193534 A JPH02193534 A JP H02193534A JP 8910989 A JP8910989 A JP 8910989A JP 8910989 A JP8910989 A JP 8910989A JP H02193534 A JPH02193534 A JP H02193534A
Authority
JP
Japan
Prior art keywords
charging
battery
discharging
switch circuit
discharged
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.)
Pending
Application number
JP8910989A
Other languages
Japanese (ja)
Inventor
Kazuhiro Tsujino
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric 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
Priority claimed from JP25748888 external-priority
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Publication of JPH02193534A publication Critical patent/JPH02193534A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent the generation of memory effect and eliminate the deterioration of the capacity of a battery by a method wherein a discharging means, discharging the battery to a perfectly discharged voltage prior to the charging of the battery, is provided in a charging device or an electronic instrument driven by the battery.
CONSTITUTION: A battery 2 is charged by a constant-current power source 1 through a charging switch circuit 3. A full-charging detecting circuit 4 detects whether the battery 2 is charged fully or not and operates the charging switch circuit 3 by a charging and discharging control circuit 12. A discharging switch circuit 8 is put ON when a charging starting switch 10 is put ON whereby discharging is effected. When the battery 2 is discharged to a perfectly discharged voltage, the discharging switch circuit 8 is turned OFF to stop discharging while the charging switch circuit 3 is turned ON and the charging is started. The battery 2 can be discharged perfectly without generating overdischarge in such a manner and the generation of memory effect is prevented.
COPYRIGHT: (C)1990,JPO&Japio
JP8910989A 1988-10-13 1989-04-07 Charging and discharging control mechanism Pending JPH02193534A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25748888 1988-10-13

Publications (1)

Publication Number Publication Date
JPH02193534A true JPH02193534A (en) 1990-07-31

Family

ID=17306987

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8910989A Pending JPH02193534A (en) 1988-10-13 1989-04-07 Charging and discharging control mechanism

Country Status (1)

Country Link
JP (1) JPH02193534A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0365027A (en) * 1989-07-31 1991-03-20 Matsushita Electric Ind Co Ltd Battery charger provided with discharger
JPH0435634U (en) * 1990-07-18 1992-03-25
US7710072B2 (en) * 2005-01-06 2010-05-04 Nexergy, Inc. Discharge circuit
CN107039681A (en) * 2016-08-22 2017-08-11 杜文龙 A kind of old dynamic lithium battery improves the charging method of internal resistance uniformity

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55109143A (en) * 1979-02-14 1980-08-22 Nippon Electric Co Charger
JPS62193516A (en) * 1986-02-20 1987-08-25 Canon Kk Electronic equipment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55109143A (en) * 1979-02-14 1980-08-22 Nippon Electric Co Charger
JPS62193516A (en) * 1986-02-20 1987-08-25 Canon Kk Electronic equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0365027A (en) * 1989-07-31 1991-03-20 Matsushita Electric Ind Co Ltd Battery charger provided with discharger
JPH0435634U (en) * 1990-07-18 1992-03-25
US7710072B2 (en) * 2005-01-06 2010-05-04 Nexergy, Inc. Discharge circuit
CN107039681A (en) * 2016-08-22 2017-08-11 杜文龙 A kind of old dynamic lithium battery improves the charging method of internal resistance uniformity

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