GB1421083A - Battery charging system - Google Patents

Battery charging system

Info

Publication number
GB1421083A
GB1421083A GB216374A GB216374A GB1421083A GB 1421083 A GB1421083 A GB 1421083A GB 216374 A GB216374 A GB 216374A GB 216374 A GB216374 A GB 216374A GB 1421083 A GB1421083 A GB 1421083A
Authority
GB
United Kingdom
Prior art keywords
transistor
battery
transistors
charging
diode
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
Application number
GB216374A
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 JP956973U external-priority patent/JPS49110741U/ja
Priority claimed from JP1973047987U external-priority patent/JPS49148433U/ja
Priority claimed from JP5496673A external-priority patent/JPS5236255B2/ja
Priority claimed from JP5496773A external-priority patent/JPS5236256B2/ja
Priority claimed from JP13757173A external-priority patent/JPS5086643A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB1421083A publication Critical patent/GB1421083A/en
Expired legal-status Critical Current

Links

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
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • 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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
    • 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
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter

Abstract

1421083 Battery charging systems using DCDC converters MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 17 Jan 1974 [19 Jan 1973 20 April 1973 16 May 1973 (2) 5 Dec 1973] 02163/74 Headings H2H and H2F [Also in Division H3] A system for charging a battery from an A.C. power supply by way of a transistor D.C. to D.C. converter comprises means for rendering the converter inoperative and thus to terminate charging when the battery reaches a predetermined state of charge. A battery B is charged from an A.C. source a, b by way of a rectifying diode D 1 , a converter comprising a transistor Tr 1 and a transformer T having a primary winding nc in the collector circuit of the transistor Tr 1 , a feedback winding nb connected to the base of the transistor and a secondary winding ns the output of which is rectified by a diode D 2 to charge the battery. When the battery B is sufficiently charged the potential at the mid-point of a divider R 2 , R 3 becomes such that transistor Tr 2 turns on so turning on transistors Tr 3 , Tr 4 , the turn-on of transistor Tr 4 connecting the base of transistor Tr 1 to its emitter whereby the transistor Tr 1 ceases oscillation so terminating the battery charging process. The turn-off of transistor Tr 1 may be enhanced by connecting a diode in its base or emitter circuit and the connection of a diode between the emitters of transistors Tr 1 , Tr 4 prevents interaction between the A.C. source and the secondary side of the transformer T. If desired the converter may comprise a pair of transistors operating in a push-pull blocking oscillator mode. In order to provide full electrical isolation between the secondary and primary sides of the transformer T the connection between the transistors Tr 4 and Tr 1 may include a photo-electric element, an electromagnetic relay or a thermo-electric element. An indicatoring lamp may be provided to indicate that charging is taking place.
GB216374A 1973-01-19 1974-01-17 Battery charging system Expired GB1421083A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP956973U JPS49110741U (en) 1973-01-19 1973-01-19
JP1973047987U JPS49148433U (en) 1973-04-20 1973-04-20
JP5496673A JPS5236255B2 (en) 1973-05-16 1973-05-16
JP5496773A JPS5236256B2 (en) 1973-05-16 1973-05-16
JP13757173A JPS5086643A (en) 1973-12-05 1973-12-05

Publications (1)

Publication Number Publication Date
GB1421083A true GB1421083A (en) 1976-01-14

Family

ID=27519080

Family Applications (1)

Application Number Title Priority Date Filing Date
GB216374A Expired GB1421083A (en) 1973-01-19 1974-01-17 Battery charging system

Country Status (5)

Country Link
CA (1) CA1007698A (en)
DE (1) DE2402182B2 (en)
FR (1) FR2214989B1 (en)
GB (1) GB1421083A (en)
IT (1) IT1008136B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994029940A1 (en) * 1993-06-03 1994-12-22 Innovations Group Limited Dry cell recharger
EP0657983A2 (en) * 1993-12-06 1995-06-14 Motorola, Inc. Pulsed battery charger circuit
US11613527B2 (en) 2019-08-09 2023-03-28 Kalvista Pharmaceuticals Limited Enzyme inhibitors

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4236107A (en) * 1978-11-22 1980-11-25 General Motors Corporation Secondary cell charging system
JPS56115141A (en) * 1980-02-14 1981-09-10 Matsushita Electric Works Ltd Automatic voltage changing type charger
EP0158636B1 (en) * 1982-12-06 1990-04-11 Tommy WAHLSTRÖM Method for recharging a rechargeable battery
JPH0681428B2 (en) * 1984-08-11 1994-10-12 松下電工株式会社 Quick charge circuit
DE4040490A1 (en) * 1990-12-18 1992-06-25 Knorr Bremse Ag CHARGING DEVICE FOR THE BATTERY OF AN ANTI-SLIP SYSTEM OF A RAIL VEHICLE
CN110209086A (en) * 2019-06-06 2019-09-06 深圳市英可瑞科技股份有限公司 A kind of digital power/enabled control method of equipment multi signal input

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994029940A1 (en) * 1993-06-03 1994-12-22 Innovations Group Limited Dry cell recharger
EP0657983A2 (en) * 1993-12-06 1995-06-14 Motorola, Inc. Pulsed battery charger circuit
EP0657983A3 (en) * 1993-12-06 1995-08-16 Motorola Inc Pulsed battery charger circuit.
US11613527B2 (en) 2019-08-09 2023-03-28 Kalvista Pharmaceuticals Limited Enzyme inhibitors

Also Published As

Publication number Publication date
FR2214989B1 (en) 1978-01-06
FR2214989A1 (en) 1974-08-19
DE2402182B2 (en) 1980-03-13
IT1008136B (en) 1976-11-10
DE2402182A1 (en) 1974-08-08
CA1007698A (en) 1977-03-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19940116