GB795425A - Improvements in or relating to high-tension supply circuit arrangements - Google Patents

Improvements in or relating to high-tension supply circuit arrangements

Info

Publication number
GB795425A
GB795425A GB22996/56A GB2299656A GB795425A GB 795425 A GB795425 A GB 795425A GB 22996/56 A GB22996/56 A GB 22996/56A GB 2299656 A GB2299656 A GB 2299656A GB 795425 A GB795425 A GB 795425A
Authority
GB
United Kingdom
Prior art keywords
cathode
rectifier
ray tube
transformer
valve
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
GB22996/56A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB795425A publication Critical patent/GB795425A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G05F1/607—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using discharge tubes in parallel with the load as final control devices
    • 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
    • H04N3/1853—Maintaining dc voltage constant using regulation in parallel

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Dc-Dc Converters (AREA)
  • Rectifiers (AREA)

Abstract

795,425. Automatic regulation. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 25, 1956 [July 28, 1955], No. 22996/56. Class 38 (4). In a system for stabilizing the E.H.T. supply to a cathode-ray tube by a shunt regulating valve, the valve is controlled by the mean direct current flowing in the A.C. circuit of a rectifier providing the E.H.T. supply. The cathode-ray tube 10 is supplied by a rectifier 5 from the secondary winding 4 of a transformer. The primary winding 2 of the transformer is the anode load of a valve 1 which may be operated either as a free-running sinusoidal oscillator or, as shown, as a sawtooth amplifier. The transformer windings 2, 4 are linked by a resistor 7 shunted by a capacitor 9 so that the voltage drop across the resistor 7 is equal to the mean direct current supplied by the rectifier. This voltage is applied to the grid of a triode 12 shunted across the cathode-ray tube is in such a sense that if the tube current increases, the triode current decreases, so as to compensate for voltage variations. Transient variations are reduced by an integrating network 13, 14.
GB22996/56A 1955-07-28 1956-07-25 Improvements in or relating to high-tension supply circuit arrangements Expired GB795425A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL795425X 1955-07-28

Publications (1)

Publication Number Publication Date
GB795425A true GB795425A (en) 1958-05-21

Family

ID=19834533

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22996/56A Expired GB795425A (en) 1955-07-28 1956-07-25 Improvements in or relating to high-tension supply circuit arrangements

Country Status (4)

Country Link
DE (1) DE1058109B (en)
FR (1) FR1155213A (en)
GB (1) GB795425A (en)
NL (2) NL199297A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1271759B (en) * 1967-03-18 1968-07-04 Blaupunkt Werke Gmbh Circuit arrangement for stabilizing the high voltage for a television picture tube

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH219028A (en) * 1940-01-19 1942-01-15 Fernseh Gmbh Arrangement for the operation of television tubes.
DE904420C (en) * 1940-09-06 1954-02-18 Fernseh Gmbh Compensation circuit for television tubes
DE895010C (en) * 1941-04-04 1953-10-29 Telefunken Gmbh Device for keeping constant the DC voltage taken from a DC voltage source with a high internal resistance
GB716602A (en) * 1950-06-07 1954-10-13 Emi Ltd Improvements relating to voltage stabilisation for power supply circuits

Also Published As

Publication number Publication date
DE1058109B (en) 1959-05-27
NL199297A (en)
NL98126C (en)
FR1155213A (en) 1958-04-24

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