FR2416508A1 - Regulateur devolteur de protection contre les surtensions - Google Patents

Regulateur devolteur de protection contre les surtensions

Info

Publication number
FR2416508A1
FR2416508A1 FR7902879A FR7902879A FR2416508A1 FR 2416508 A1 FR2416508 A1 FR 2416508A1 FR 7902879 A FR7902879 A FR 7902879A FR 7902879 A FR7902879 A FR 7902879A FR 2416508 A1 FR2416508 A1 FR 2416508A1
Authority
FR
France
Prior art keywords
voltage
terminal
unregulated
source
voltage source
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.)
Pending
Application number
FR7902879A
Other languages
English (en)
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.)
RCA Corp
Original Assignee
RCA 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 RCA Corp filed Critical RCA Corp
Publication of FR2416508A1 publication Critical patent/FR2416508A1/fr
Pending 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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/62—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using bucking or boosting dc sources

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Automation & Control Theory (AREA)
  • Details Of Television Scanning (AREA)
  • Dc-Dc Converters (AREA)
  • Control Of Voltage And Current In General (AREA)
  • Television Receiver Circuits (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

L'invention concerne un régulateur de tension comprenant une source de tension continue non régulée produite à une première borne par rapport à un point de référence; une source de tension alternative; un condensateur; et un moyen de commutation contrôlé interconnecté avec la source de tension continue non régulée, la source de tension alternative et un moyen formant condensateur pour produire, à une seconde borne, une tension continue et regulée. Selon l'invention, un moyen de protection contre les surtensions limite la tension apparaissant à la seconde borne dans des conditions de défaut, sensiblement à la tension continue non régulée, et il comprend une diode 250, couplée entre les première et seconde bornes 210a et 251 et polarisée pour être conductrice quand la tension à la borne 251 dépasse celle à la borne 210a; et une résistance 242 couplée en série avec la source de tension alternative pour limiter le courant quand la diode 250 est conductrice. L'invention s'applique notamment aux téléviseurs.
FR7902879A 1978-02-06 1979-02-05 Regulateur devolteur de protection contre les surtensions Pending FR2416508A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/875,530 US4169241A (en) 1978-02-06 1978-02-06 Overvoltage protected de-boost regulator

Publications (1)

Publication Number Publication Date
FR2416508A1 true FR2416508A1 (fr) 1979-08-31

Family

ID=25365962

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7902879A Pending FR2416508A1 (fr) 1978-02-06 1979-02-05 Regulateur devolteur de protection contre les surtensions

Country Status (11)

Country Link
US (1) US4169241A (fr)
JP (1) JPS54113845A (fr)
AU (1) AU522631B2 (fr)
CA (1) CA1112758A (fr)
DE (1) DE2904452A1 (fr)
FI (1) FI790301A (fr)
FR (1) FR2416508A1 (fr)
GB (1) GB2015211B (fr)
IT (1) IT1110093B (fr)
NZ (1) NZ189550A (fr)
SE (1) SE7900803L (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4298830A (en) * 1979-11-30 1981-11-03 Rca Corporation Horizontal deflection generator and driver circuit
US4520256A (en) * 1983-05-16 1985-05-28 Conair Corporation Hot air curler having a remote air inlet and a slide switch and actuating arm within its handle
GB2178202A (en) * 1985-07-23 1987-02-04 English Electric Valve Co Ltd Arrangements for maintaining a substantially constant voltage between two points in a circuit
US5451962A (en) * 1994-08-26 1995-09-19 Martin Marietta Corporation Boost regulated capacitor multiplier for pulse load
US6847404B1 (en) 1998-09-29 2005-01-25 Thomson Licensing S.A. Video display protection circuit
US7869237B1 (en) 2007-12-27 2011-01-11 Lockheed Martin Corporation Phase-shifted bridge with auxiliary circuit to maintain zero-voltage-switching
US7859870B1 (en) 2008-07-29 2010-12-28 Lockheed Martin Corporation Voltage clamps for energy snubbing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2184994A1 (fr) * 1972-05-18 1973-12-28 Rca Corp
US3881135A (en) * 1974-01-31 1975-04-29 Rca Corp Boost regulator with high voltage protection
FR2260239A1 (fr) * 1974-01-31 1975-08-29 Rca Corp

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3970780A (en) * 1972-10-04 1976-07-20 Sharp Kabushiki Kaisha Constant-voltage power supply

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2184994A1 (fr) * 1972-05-18 1973-12-28 Rca Corp
US3914653A (en) * 1972-05-18 1975-10-21 Rca Corp Voltage regulator for deflection circuit
US3881135A (en) * 1974-01-31 1975-04-29 Rca Corp Boost regulator with high voltage protection
FR2260239A1 (fr) * 1974-01-31 1975-08-29 Rca Corp
FR2260238A1 (fr) * 1974-01-31 1975-08-29 Rca Corp
US3906304A (en) * 1974-01-31 1975-09-16 Rca Corp High voltage protection circuit

Also Published As

Publication number Publication date
JPS54113845A (en) 1979-09-05
IT7919813A0 (it) 1979-02-01
DE2904452A1 (de) 1979-08-09
US4169241A (en) 1979-09-25
FI790301A (fi) 1979-08-07
AU4393679A (en) 1979-08-16
CA1112758A (fr) 1981-11-17
SE7900803L (sv) 1979-08-07
GB2015211B (en) 1982-08-04
IT1110093B (it) 1985-12-23
AU522631B2 (en) 1982-06-17
NZ189550A (en) 1982-11-23
GB2015211A (en) 1979-09-05

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