GB1263712A - Battery charging systems for road vehicles - Google Patents

Battery charging systems for road vehicles

Info

Publication number
GB1263712A
GB1263712A GB31453/68A GB3145368A GB1263712A GB 1263712 A GB1263712 A GB 1263712A GB 31453/68 A GB31453/68 A GB 31453/68A GB 3145368 A GB3145368 A GB 3145368A GB 1263712 A GB1263712 A GB 1263712A
Authority
GB
United Kingdom
Prior art keywords
battery
transistor
transistors
regulator
voltage
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
GB31453/68A
Inventor
George Alan Coleman
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Joseph Lucas Industries 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 Lucas Industries Ltd, Joseph Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB31453/68A priority Critical patent/GB1263712A/en
Priority to FR6921092A priority patent/FR2012140A1/fr
Publication of GB1263712A publication Critical patent/GB1263712A/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
    • H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
    • H02J7/16—Regulation of the charging current or voltage by variation of field
    • H02J7/24—Regulation of the charging current or voltage by variation of field using discharge tubes or semiconductor devices
    • H02J7/243—Regulation of the charging current or voltage by variation of field using discharge tubes or semiconductor devices with on/off action

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Charge By Means Of Generators (AREA)

Abstract

1,263,712. Automatic voltage control. JOSEPH LUCAS (INDUSTRIES) Ltd. June 9, 1969 [July 2, 1968], No.31453/68. Heading G3R. A battery charging system for a vehicle of the type wherein an alternator 11 supplies the battery 16 through a main rectifier 12 and supplies its field winding 28 through auxiliary rectifiers 17, is characterized by the interposition of the ignition switch 15 between members 17, 28 and by the provision of a transistor voltage regulator, whose transistors 21 and 25, 27 oscillate in an ON/OFF manner to intermittently energize the winding 28 and whose voltage sensing and comparison circuit 18, 19, 21, 22, 24 is connected across the battery 16 as shown. In addition to providing accurate sensing of the battery voltage, this connection ensures that the circuit fails safe if the connection between members 16, 18 is broken, such breakage removing the base current from transistor 25 to turn off transistors 25, 27. ON/OFF oscillation of the regulator transistors is provided by the positive feedback circuit 31, 32 and temperature compensation is obtained by choosing the resistor 22 in relation to the base-emitter characteristics of the transistor 21. The negative feedback resistor 30 may be omitted in some applications of the regulator.
GB31453/68A 1968-07-02 1968-07-02 Battery charging systems for road vehicles Expired GB1263712A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB31453/68A GB1263712A (en) 1968-07-02 1968-07-02 Battery charging systems for road vehicles
FR6921092A FR2012140A1 (en) 1968-07-02 1969-06-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB31453/68A GB1263712A (en) 1968-07-02 1968-07-02 Battery charging systems for road vehicles

Publications (1)

Publication Number Publication Date
GB1263712A true GB1263712A (en) 1972-02-16

Family

ID=10323306

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31453/68A Expired GB1263712A (en) 1968-07-02 1968-07-02 Battery charging systems for road vehicles

Country Status (2)

Country Link
FR (1) FR2012140A1 (en)
GB (1) GB1263712A (en)

Also Published As

Publication number Publication date
FR2012140A1 (en) 1970-03-13

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