GB1254077A - Television tube stabilised power supply - Google Patents

Television tube stabilised power supply

Info

Publication number
GB1254077A
GB1254077A GB4281569A GB4281569A GB1254077A GB 1254077 A GB1254077 A GB 1254077A GB 4281569 A GB4281569 A GB 4281569A GB 4281569 A GB4281569 A GB 4281569A GB 1254077 A GB1254077 A GB 1254077A
Authority
GB
United Kingdom
Prior art keywords
eht
transformer
voltage
inductance
power supply
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
GB4281569A
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of GB1254077A publication Critical patent/GB1254077A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Dc-Dc Converters (AREA)
  • Details Of Television Scanning (AREA)

Abstract

1,254,077. EHT generators. INTERNATIONAL STANDARD ELECTRIC CORP. 28 Aug., 1969 [30 Aug., 1968], No. 42815/69. Heading H2F. [Also in Division G3] The output of a transistorized EHT generator for a TV receiver is stabilized by a variable inductor 9 the inductance of which is controlled in dependence as the EHT voltage so as to vary the effective inductance of the EHT transformer 3. As shown, EHT is provided at 20 by rectification at 7 of the flyback pulses induced in transformer 3 by turning off the line output transistor 1. The EHT voltage is compared with that of a Zener diode 18 and used to control the current in transistors 14, 13 which in turn varies the inductance of transductor 9 so as to adjust the effective inductance of transformer 3 and so compensate for changes in EHT voltage. In Figs. 1-4 (not shown) rectifier 7 is replaced by a voltage tripler whilst in Figs. 3 and 4 (not shown) transductor 9 is connected across the primary or an auxiliary winding of transformer 3.
GB4281569A 1968-08-30 1969-08-28 Television tube stabilised power supply Expired GB1254077A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681791026 DE1791026A1 (en) 1968-08-30 1968-08-30 Circuit for keeping the high voltage of the picture tube transistorized television receiver constant

Publications (1)

Publication Number Publication Date
GB1254077A true GB1254077A (en) 1971-11-17

Family

ID=5707037

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4281569A Expired GB1254077A (en) 1968-08-30 1969-08-28 Television tube stabilised power supply

Country Status (3)

Country Link
DE (1) DE1791026A1 (en)
FR (1) FR2016636A7 (en)
GB (1) GB1254077A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4446405A (en) * 1980-12-29 1984-05-01 Rca Corporation Television receiver ferroresonant load power supply

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2213597C3 (en) * 1972-03-21 1983-11-03 Standard Elektrik Lorenz Ag, 7000 Stuttgart Horizontal deflection circuit for television receivers
JPS4934724A (en) * 1972-08-01 1974-03-30
DE3042982C2 (en) * 1980-11-14 1982-11-11 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & Co KG, 8510 Fürth Circuit arrangement for stabilizing the high voltage for cathode ray tubes
GB2160079B (en) * 1984-06-05 1988-01-06 Motorola Inc Timebase circuit
DE4225807A1 (en) * 1992-08-05 1994-02-10 Thomson Brandt Gmbh HV stabilisation circuit for TV receiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4446405A (en) * 1980-12-29 1984-05-01 Rca Corporation Television receiver ferroresonant load power supply

Also Published As

Publication number Publication date
DE1791026A1 (en) 1971-10-14
FR2016636A7 (en) 1970-05-08

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