GB976764A - Improvements in or relating to extra high tension supply circuit arrangements - Google Patents

Improvements in or relating to extra high tension supply circuit arrangements

Info

Publication number
GB976764A
GB976764A GB1783462A GB1783462A GB976764A GB 976764 A GB976764 A GB 976764A GB 1783462 A GB1783462 A GB 1783462A GB 1783462 A GB1783462 A GB 1783462A GB 976764 A GB976764 A GB 976764A
Authority
GB
United Kingdom
Prior art keywords
transistor
potential
condenser
supply circuit
rectifier
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
GB1783462A
Inventor
Harry Donald Kitchin
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi 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
Application filed by Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to GB1783462A priority Critical patent/GB976764A/en
Publication of GB976764A publication Critical patent/GB976764A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/18—Generation of supply voltages, in combination with electron beam deflecting
    • H04N3/185—Maintaining dc voltage constant
    • H04N3/1856—Maintaining dc voltage constant using regulation in series
    • 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
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/338—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement
    • H02M3/3385—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement with automatic control of output voltage or current

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

976, 764. Automatic voltage control. MARCONI CO. Ltd. Feb. 5, 1963 [May 9, 1962], No. 17834/62. Heading G3R. An E.H.T. supply circuit arrangement comprises an oscillator including a transistor VT1 and transformer windings TR1 and TR2, a reservoir condenser C1 included in a circuit between the base of VT1 and a point of fixed potential, an output terminal 0 to which is applied an E. H.T. potential derived from the oscillator over transformer winding TR3 and associated rectifiers, a circuit including transformer winding TR4, potentiometer P and rectifier MR2 for deriving a direct voltage dependent on the E.H.T. potential, a gas discharge tube V1 supplied from the winding TR4 over a rectifier MR1 to provide a reference voltage, and a transistor VT2 which shunts the condenser C1 and to the base of which is applied the sum of the voltages from MR2 and V1. The arrangement is such that the current passed by transistor VT2 is controlled in dependence on variations in the EHT potential, whereby the bias on transistor VT1 is controlled in a sense to stabilize the E.H.T. output potential. In a modification (Fig. 2, not shown), the control of transistor VT2 is effected through an additional transistor, and a Zener diode constitutes the source of reference potential. In another modification (Fig. 3, not shown) the transistor VT2 is connected in series with the condenser C1 and the reference potential is derived from the operating potential source.
GB1783462A 1962-05-09 1962-05-09 Improvements in or relating to extra high tension supply circuit arrangements Expired GB976764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1783462A GB976764A (en) 1962-05-09 1962-05-09 Improvements in or relating to extra high tension supply circuit arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1783462A GB976764A (en) 1962-05-09 1962-05-09 Improvements in or relating to extra high tension supply circuit arrangements

Publications (1)

Publication Number Publication Date
GB976764A true GB976764A (en) 1964-12-02

Family

ID=10102035

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1783462A Expired GB976764A (en) 1962-05-09 1962-05-09 Improvements in or relating to extra high tension supply circuit arrangements

Country Status (1)

Country Link
GB (1) GB976764A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2499783A1 (en) * 1981-02-10 1982-08-13 Thomson Csf Power control circuit for DC supply - includes transistor cutting current periodically to primary of transformer with winding to base, led and phototransistor providing feedback

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2499783A1 (en) * 1981-02-10 1982-08-13 Thomson Csf Power control circuit for DC supply - includes transistor cutting current periodically to primary of transformer with winding to base, led and phototransistor providing feedback

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