GB939851A - Improvements in or relating to regulating systems for shunt-excited dynamos - Google Patents

Improvements in or relating to regulating systems for shunt-excited dynamos

Info

Publication number
GB939851A
GB939851A GB13358/60A GB1335860A GB939851A GB 939851 A GB939851 A GB 939851A GB 13358/60 A GB13358/60 A GB 13358/60A GB 1335860 A GB1335860 A GB 1335860A GB 939851 A GB939851 A GB 939851A
Authority
GB
United Kingdom
Prior art keywords
voltage
resistor
transistor
temperature
reduction
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
GB13358/60A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB939851A publication Critical patent/GB939851A/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
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00308—Overvoltage protection
    • 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

Abstract

939,851. Automatic voltage control. ROBERT BOSCH G.m.b.H. April 14, 1960 [April 15, 1959], No. 13358/60. Class 38 (4). The output voltage of a shunt-excited generator A supplying a battery B is maintained constant by controlling the resistance of a transistor 20, connected in series with a field F of the generator, by a directly-connected control transistor 25. The emitter-base bias of the control transistor is determined by a Zenerdiode 30 connected to a tapping 40 of a voltage divider comprising resistors 41, 42, 26. The transistor 25 is maintained alternately conducting and non-conducting by a feedback path through a resistor 37 and a capacitor 36. The voltage of the generator is reduced above a limiting current by the voltage drop across a resistor 12, through a potential divider 60, 61, causing a diode 57 to conduct and vary the base bias to the control transistor 25. The control characteristics are varied in dependence on the ambient temperature by temperature responsive resistors 50, 55. The resistor 50 is increased in value by a reduction in temperature to cause an increase in output voltage. The resistor 55 causes the current limiting to be effective at a higher value with reduction in temperature to allow for the increased maximum output at low ambient temperatures. A heating coil 35 for the Zener diode 30 compensates for the reduction in the dynamo voltage due to an increase in the load current.
GB13358/60A 1959-04-15 1960-04-14 Improvements in or relating to regulating systems for shunt-excited dynamos Expired GB939851A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB52845A DE1203859B (en) 1959-04-15 1959-04-15 Control device for vehicle alternators

Publications (1)

Publication Number Publication Date
GB939851A true GB939851A (en) 1963-10-16

Family

ID=6970045

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13358/60A Expired GB939851A (en) 1959-04-15 1960-04-14 Improvements in or relating to regulating systems for shunt-excited dynamos

Country Status (3)

Country Link
JP (1) JPS3714369B1 (en)
DE (1) DE1203859B (en)
GB (1) GB939851A (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE562693A (en) *
BE566559A (en) *
US2809301A (en) * 1956-01-16 1957-10-08 Gen Motors Corp Vehicle electrical system
DE1006491B (en) * 1956-01-27 1957-04-18 Bosch Gmbh Robert Electrical system, especially for motor vehicles
FR1150336A (en) * 1956-06-01 1958-01-10 Paris & Du Rhone Electric voltage regulator
DE1053628B (en) * 1956-11-03 1959-03-26 Bosch Gmbh Robert Lighting system for motor vehicles

Also Published As

Publication number Publication date
DE1203859B (en) 1965-10-28
JPS3714369B1 (en) 1962-09-18

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