GB1499663A - Transistorised television receivers - Google Patents

Transistorised television receivers

Info

Publication number
GB1499663A
GB1499663A GB16886/74A GB1688674A GB1499663A GB 1499663 A GB1499663 A GB 1499663A GB 16886/74 A GB16886/74 A GB 16886/74A GB 1688674 A GB1688674 A GB 1688674A GB 1499663 A GB1499663 A GB 1499663A
Authority
GB
United Kingdom
Prior art keywords
diode
capacitor
receiver
thyristor thy1
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
GB16886/74A
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.)
Communications Patents Ltd
Original Assignee
Communications Patents 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 Communications Patents Ltd filed Critical Communications Patents Ltd
Priority to GB16886/74A priority Critical patent/GB1499663A/en
Priority to AU80184/75A priority patent/AU490335B2/en
Priority to ZA00752453A priority patent/ZA752453B/en
Publication of GB1499663A publication Critical patent/GB1499663A/en
Priority to MY197910A priority patent/MY7900010A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/16—Picture reproducers using cathode ray tubes
    • H04N9/29—Picture reproducers using cathode ray tubes using demagnetisation or compensation of external magnetic fields

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

1499663 Power supplies for TV receivers COMMUNICATIONS PATENTS Ltd 14 April 1975 [17 April 1974] 16886/74 Heading H2F In or for a TV receiver, a rectifier comprises a thyristor THY1 coupled between A.C. supply terminals LN and the D.C. side A and includes a Zener diode D4, resistor R3 and capacitor C1 for triggering the thyristor THY1 on each half cycle and a time delay including a diode D3 and capacitor C8 for inhibiting the operation of the thyristor THY1 for a period following switch-on of the receiver so as to allow degaussing to be effected. The rectifier preferably includes a diode D1. When the receiver is first switched on, capacitor C8 draws charging current and thereby by-passing the control circuit for thyristor THY1 for approximately half a second. An auxiliary circuit includes diode rectifier D2 for providing starting power for the line oscillator. This circuit is inhibited by diode BD 1 when the thyristor THY1 is operating.
GB16886/74A 1974-04-17 1974-04-17 Transistorised television receivers Expired GB1499663A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB16886/74A GB1499663A (en) 1974-04-17 1974-04-17 Transistorised television receivers
AU80184/75A AU490335B2 (en) 1974-04-17 1975-04-15 Improvements in or relating to transistorised television receivers
ZA00752453A ZA752453B (en) 1974-04-17 1975-04-17 Improvements in or relating to transistorised television receivers
MY197910A MY7900010A (en) 1974-04-17 1979-12-31 Improvements in or relating to transistorised television receivers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16886/74A GB1499663A (en) 1974-04-17 1974-04-17 Transistorised television receivers

Publications (1)

Publication Number Publication Date
GB1499663A true GB1499663A (en) 1978-02-01

Family

ID=10085459

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16886/74A Expired GB1499663A (en) 1974-04-17 1974-04-17 Transistorised television receivers

Country Status (3)

Country Link
GB (1) GB1499663A (en)
MY (1) MY7900010A (en)
ZA (1) ZA752453B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0335245A2 (en) * 1988-03-28 1989-10-04 Kabushiki Kaisha Toshiba A method of degaussing color cathode ray tube
GB2256757A (en) * 1991-06-13 1992-12-16 Samsung Electronics Co Ltd Rectifier having a circuit for preventing inrush current.
EP0533140A1 (en) * 1991-09-20 1993-03-24 Sony Corporation Degaussing circuit with delayed generation of a vertical deflection
US5901029A (en) * 1988-03-28 1999-05-04 Kabushiki Kaisha Toshiba Method of degaussing a color cathode ray tube

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0335245A2 (en) * 1988-03-28 1989-10-04 Kabushiki Kaisha Toshiba A method of degaussing color cathode ray tube
EP0335245A3 (en) * 1988-03-28 1990-12-19 Kabushiki Kaisha Toshiba A method of degaussing color cathode ray tube
US5901029A (en) * 1988-03-28 1999-05-04 Kabushiki Kaisha Toshiba Method of degaussing a color cathode ray tube
GB2256757A (en) * 1991-06-13 1992-12-16 Samsung Electronics Co Ltd Rectifier having a circuit for preventing inrush current.
GB2256757B (en) * 1991-06-13 1995-07-26 Samsung Electronics Co Ltd A rectifier having a capacitor smoothed output and a circuit for preventing inrush current
EP0533140A1 (en) * 1991-09-20 1993-03-24 Sony Corporation Degaussing circuit with delayed generation of a vertical deflection

Also Published As

Publication number Publication date
AU8018475A (en) 1976-10-21
MY7900010A (en) 1979-12-31
ZA752453B (en) 1976-07-28

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee