GB640640A - Improvements in or relating to circuit arrangements for producing high direct-current voltages - Google Patents

Improvements in or relating to circuit arrangements for producing high direct-current voltages

Info

Publication number
GB640640A
GB640640A GB23358/46A GB2335846A GB640640A GB 640640 A GB640640 A GB 640640A GB 23358/46 A GB23358/46 A GB 23358/46A GB 2335846 A GB2335846 A GB 2335846A GB 640640 A GB640640 A GB 640640A
Authority
GB
United Kingdom
Prior art keywords
current
relating
producing high
circuit arrangements
aug
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
GB23358/46A
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 Lamps Ltd
Koninklijke Philips NV
Original Assignee
Philips Lamps Ltd
Philips Gloeilampenfabrieken NV
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 Lamps Ltd, Philips Gloeilampenfabrieken NV filed Critical Philips Lamps Ltd
Publication of GB640640A publication Critical patent/GB640640A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Rectifiers (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

640,640. Converting. PHILIPS LAMPS, Ltd. Aug. 6, 1946, No. 23358. Convention date, Aug. 3, 1945. Drawings to Specification. [Class 38 (ii)] High voltage for the cathode-ray tube of a television receiver is generated by causing current to flow in an inductor in the anode circuit of a valve, the current being interrupted at less than line frequency to produce pulses which are rectified. The time during which current flows is made shorter than the time when it is interrupted. The control signal applied to the valve may be of saw-tooth or rectangular waveform superimposed on a negative biassing potential and exceeds the frame frequency.
GB23358/46A 1945-08-03 1946-08-06 Improvements in or relating to circuit arrangements for producing high direct-current voltages Expired GB640640A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL262664X 1945-08-03
NL657042X 1945-11-20

Publications (1)

Publication Number Publication Date
GB640640A true GB640640A (en) 1950-07-26

Family

ID=26643573

Family Applications (2)

Application Number Title Priority Date Filing Date
GB23358/46A Expired GB640640A (en) 1945-08-03 1946-08-06 Improvements in or relating to circuit arrangements for producing high direct-current voltages
GB34407/46A Expired GB657042A (en) 1945-08-03 1946-11-20 Improved circuit for the production of direct voltages

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB34407/46A Expired GB657042A (en) 1945-08-03 1946-11-20 Improved circuit for the production of direct voltages

Country Status (5)

Country Link
BE (2) BE467998A (en)
CH (2) CH262664A (en)
FR (2) FR55095E (en)
GB (2) GB640640A (en)
NL (1) NL80079C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2831730A1 (en) * 1978-05-13 1979-11-22 Marconi Co Ltd MODULATION CIRCUIT

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1065027B (en) * 1957-01-25 1959-09-10 Standard Elek K Lorenz Ag Circuit arrangement for the automatic regulation of the high voltage of picture tubes
NL226174A (en) * 1957-03-28

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2831730A1 (en) * 1978-05-13 1979-11-22 Marconi Co Ltd MODULATION CIRCUIT

Also Published As

Publication number Publication date
NL80079C (en)
FR936795A (en) 1948-08-09
BE469308A (en)
BE467998A (en)
GB657042A (en) 1951-09-12
CH275697A (en) 1951-05-31
CH262664A (en) 1949-07-15
FR55095E (en) 1951-06-06

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