JPS57162575A - Vertical deflecting circuit - Google Patents

Vertical deflecting circuit

Info

Publication number
JPS57162575A
JPS57162575A JP4636981A JP4636981A JPS57162575A JP S57162575 A JPS57162575 A JP S57162575A JP 4636981 A JP4636981 A JP 4636981A JP 4636981 A JP4636981 A JP 4636981A JP S57162575 A JPS57162575 A JP S57162575A
Authority
JP
Japan
Prior art keywords
vertical
power supply
voltage
flyback time
signal
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
JP4636981A
Other languages
Japanese (ja)
Inventor
Toshiaki Terakawa
Tsugihiko Kobayashi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP4636981A priority Critical patent/JPS57162575A/en
Publication of JPS57162575A publication Critical patent/JPS57162575A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/48—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices
    • H03K4/60—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth current is produced through an inductor
    • H03K4/69—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth current is produced through an inductor using a semiconductor device operating as an amplifier
    • H03K4/696—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth current is produced through an inductor using a semiconductor device operating as an amplifier using means for reducing power dissipation or for shortening the flyback time, e.g. applying a higher voltage during flyback time

Landscapes

  • Details Of Television Scanning (AREA)

Abstract

PURPOSE:To shorten the vertical flyback time without increasing the power consumption for a vertical deflecting circuit which is used to a TV picture receiver, etc., by niticing the fact that the power supply voltage of an output amplifier rises almost only in the vertical flyback time. CONSTITUTION:When the vertical synchronizing signal (a) is applied to an input terminal IN, a sawtooth wave current flows to a vertical deflecting coil 3. In this case, the signal (a) is applied also to a voltage switch circuit 5 and a transistor TR6 conducts at a low level part (flyback time). Thus the high voltage VH is applied to the power supply terminal 8 of an output amplifier 2. The TR6 becomes inconductive at the high level part of the signal (a), and the low voltage power supply VL is applied to the power supply terminal 8 via a diode 7. As a result, the electric energy stored at the coil 3 with application of the voltage VH is suddenly discharged. Thus the flyback time can be shortened.
JP4636981A 1981-03-31 1981-03-31 Vertical deflecting circuit Pending JPS57162575A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4636981A JPS57162575A (en) 1981-03-31 1981-03-31 Vertical deflecting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4636981A JPS57162575A (en) 1981-03-31 1981-03-31 Vertical deflecting circuit

Publications (1)

Publication Number Publication Date
JPS57162575A true JPS57162575A (en) 1982-10-06

Family

ID=12745233

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4636981A Pending JPS57162575A (en) 1981-03-31 1981-03-31 Vertical deflecting circuit

Country Status (1)

Country Link
JP (1) JPS57162575A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63100893A (en) * 1986-10-17 1988-05-02 Hitachi Ltd Convergence circuit of display device
EP1022855A1 (en) * 1999-01-22 2000-07-26 STMicroelectronics SA Control device and method for a vertical deflection circuit of a spot scanning a screen, in particular for television or computer monitor
FR2788920A1 (en) * 1999-01-22 2000-07-28 St Microelectronics Sa Control method for vertical deflection screen sweep circuit, involves using output amplifier stage, principal and auxiliary voltage supplies, and two bidirectional interrupters
JP2010527012A (en) * 2007-05-14 2010-08-05 アトラス エレクトロニク ゲゼルシャフト ミット ベシュレンクテル ハフツング Direction measurement method of target emitting sound wave

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63100893A (en) * 1986-10-17 1988-05-02 Hitachi Ltd Convergence circuit of display device
EP1022855A1 (en) * 1999-01-22 2000-07-26 STMicroelectronics SA Control device and method for a vertical deflection circuit of a spot scanning a screen, in particular for television or computer monitor
FR2788920A1 (en) * 1999-01-22 2000-07-28 St Microelectronics Sa Control method for vertical deflection screen sweep circuit, involves using output amplifier stage, principal and auxiliary voltage supplies, and two bidirectional interrupters
FR2788921A1 (en) * 1999-01-22 2000-07-28 St Microelectronics Sa METHOD AND DEVICE FOR CONTROLLING A VERTICAL DEVIATION CIRCUIT OF A SPOT SCANNING A SCREEN, PARTICULARLY FOR A TELEVISION OR COMPUTER MONITOR
JP2010527012A (en) * 2007-05-14 2010-08-05 アトラス エレクトロニク ゲゼルシャフト ミット ベシュレンクテル ハフツング Direction measurement method of target emitting sound wave
JP4922450B2 (en) * 2007-05-14 2012-04-25 アトラス エレクトロニク ゲゼルシャフト ミット ベシュレンクテル ハフツング Direction measurement method for target emitting sound wave

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