GB1132191A - Improvements relating to electronic switching devices - Google Patents

Improvements relating to electronic switching devices

Info

Publication number
GB1132191A
GB1132191A GB1350967A GB1350967A GB1132191A GB 1132191 A GB1132191 A GB 1132191A GB 1350967 A GB1350967 A GB 1350967A GB 1350967 A GB1350967 A GB 1350967A GB 1132191 A GB1132191 A GB 1132191A
Authority
GB
United Kingdom
Prior art keywords
transistor
point
collector
voltage
march
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
GB1350967A
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Publication of GB1132191A publication Critical patent/GB1132191A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/615—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors in a Darlington configuration

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Electronic Switches (AREA)

Abstract

1,132,191. Transistor switching circuits. COMPAGNIE FRANCAISE THOMSON HOUSTON HOTCHKISS BRANDT. 22 March, 1967 [22 March, 1966], No. 13509/67. Heading H3T. [Also in Division G3] In a D.C. voltage regulator of the type comprising a transistor 42 which is switched on and off by a circuit including transistors 40, 41 at a mark-space ratio determined by a control signal applied to the base of transistor 40 and dependent on the difference between the output voltage V2 and a reference voltage, the collector of transistor 41 is connected to a point 8 on a choke 50 of the low-pass filter 5 which point is chosen so that the power loss in the transistor 42 is reduced as compared with a known arrangement, Fig. 2 (not shown), in which the collector of transistor 41 is connected to the point 6. The point 8 is chosen to reduce the loss in transistor 42 while assuring a suitable saturation of it, the theoretical basis for this being discussed with reference to the reduction of the emitter-collector voltage of transistor 42 when the collector connection of transistor 41 is changed from point 6 to 8, Figs. 3 and 5 (not shown).
GB1350967A 1966-03-22 1967-03-22 Improvements relating to electronic switching devices Expired GB1132191A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR54532A FR1479475A (en) 1966-03-22 1966-03-22 Switching Device Improvements

Publications (1)

Publication Number Publication Date
GB1132191A true GB1132191A (en) 1968-10-30

Family

ID=8604408

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1350967A Expired GB1132191A (en) 1966-03-22 1967-03-22 Improvements relating to electronic switching devices

Country Status (2)

Country Link
FR (1) FR1479475A (en)
GB (1) GB1132191A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4710722A (en) * 1970-11-20 1972-05-29
JPS5130587Y1 (en) * 1974-12-12 1976-08-02
GB2132436A (en) * 1982-12-20 1984-07-04 Lansing Bagnall Ltd Darlington transistor switch
GB2158305A (en) * 1984-04-25 1985-11-06 Grass Valley Group Voltage converter circuit
GB2339929A (en) * 1995-10-24 2000-02-09 Rohm Co Ltd Power supply apparatus

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0196679A3 (en) * 1982-05-26 1986-11-20 Nippon Chemi-Con Corporation Switching regulator
EP0095724A3 (en) * 1982-05-26 1984-03-28 Nippon Chemi-Con Corporation Switching circuit
EP0201929A1 (en) * 1982-05-26 1986-11-20 Nippon Chemi-Con Corporation Switching circuit
EP0196680A3 (en) * 1982-05-26 1986-11-20 Nippon Chemi-Con Corporation Switching regulator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4710722A (en) * 1970-11-20 1972-05-29
JPS5130587Y1 (en) * 1974-12-12 1976-08-02
GB2132436A (en) * 1982-12-20 1984-07-04 Lansing Bagnall Ltd Darlington transistor switch
GB2158305A (en) * 1984-04-25 1985-11-06 Grass Valley Group Voltage converter circuit
GB2339929A (en) * 1995-10-24 2000-02-09 Rohm Co Ltd Power supply apparatus
GB2339929B (en) * 1995-10-24 2000-04-12 Rohm Co Ltd Power supply apparatus

Also Published As

Publication number Publication date
FR1479475A (en) 1967-05-05

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