GB1418062A - Battery chargers - Google Patents

Battery chargers

Info

Publication number
GB1418062A
GB1418062A GB517673A GB517673A GB1418062A GB 1418062 A GB1418062 A GB 1418062A GB 517673 A GB517673 A GB 517673A GB 517673 A GB517673 A GB 517673A GB 1418062 A GB1418062 A GB 1418062A
Authority
GB
United Kingdom
Prior art keywords
battery
converter
modulator
output
current
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
GB517673A
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.)
INPEL Pty Ltd
Original Assignee
INPEL Pty 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 INPEL Pty Ltd filed Critical INPEL Pty Ltd
Publication of GB1418062A publication Critical patent/GB1418062A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Dc-Dc Converters (AREA)

Abstract

1418062 Battery charging systems INPEL (PTY) Ltd 1 Feb 1973 [7 Feb 1972 13 Oct 1972] 5176/73 Heading H2H [Also in Division G3] Apparatus for charging a battery comprises a diode bridge rectifier 4 connectable to a mains supply 1, a D.C. to D.C. converter 5 controlled by a pulse width modulator 6 and a current detector 8 for controlling the output current of the converter. To ensure that sufficient output power is provided for charging the battery, several similar apparatuses 2, 3 may be connected in parallel and controlled by a central control circuit 7. The current detector 8 is of the current mirror type and provides an output 42 to the modulator 6. The modulator 6 supplies control pulses on output leads 42 to the bases of transistors in a bridge drive circuit for an output power transistor in the converter 5. The detector 8 and the modulator 6 control the output power transistor which is connected in series with the battery to ensure that a constant current is supplied to the battery. The converter may comprise thryristors instead of transistors.
GB517673A 1972-02-07 1973-02-01 Battery chargers Expired GB1418062A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA720777A ZA72777B (en) 1972-02-07 1972-02-07 Improvements in battery chargers
ZA727328 1972-10-13

Publications (1)

Publication Number Publication Date
GB1418062A true GB1418062A (en) 1975-12-17

Family

ID=27131045

Family Applications (1)

Application Number Title Priority Date Filing Date
GB517673A Expired GB1418062A (en) 1972-02-07 1973-02-01 Battery chargers

Country Status (14)

Country Link
JP (1) JPS4891528A (en)
BE (1) BE795101A (en)
CH (1) CH549301A (en)
DE (1) DE2305971A1 (en)
FR (1) FR2171274A1 (en)
GB (1) GB1418062A (en)
HU (1) HU167401B (en)
IE (1) IE37166B1 (en)
IT (1) IT989530B (en)
LU (1) LU66957A1 (en)
NL (1) NL7301670A (en)
PL (1) PL83461B1 (en)
RO (1) RO71403A (en)
ZA (1) ZA72777B (en)

Cited By (1)

* 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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4374355A (en) * 1981-03-02 1983-02-15 General Electric Company Electrically isolated battery charger for on-board electric vehicle applications
US4584514A (en) * 1983-05-20 1986-04-22 Allied Corporation High frequency switching battery charger
EP0126936A3 (en) * 1983-05-20 1985-06-19 Allied Corporation High frequency switching battery charger

Cited By (1)

* 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

Also Published As

Publication number Publication date
CH549301A (en) 1974-05-15
FR2171274A1 (en) 1973-09-21
ZA72777B (en) 1973-05-30
JPS4891528A (en) 1973-11-28
NL7301670A (en) 1973-08-09
PL83461B1 (en) 1975-12-31
HU167401B (en) 1975-09-27
LU66957A1 (en) 1973-04-19
DE2305971A1 (en) 1973-08-23
RO71403A (en) 1982-05-10
IE37166L (en) 1973-08-07
IT989530B (en) 1975-06-10
IE37166B1 (en) 1977-05-25
BE795101A (en) 1973-05-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees