JPH03130668U - - Google Patents
Info
- Publication number
- JPH03130668U JPH03130668U JP3574490U JP3574490U JPH03130668U JP H03130668 U JPH03130668 U JP H03130668U JP 3574490 U JP3574490 U JP 3574490U JP 3574490 U JP3574490 U JP 3574490U JP H03130668 U JPH03130668 U JP H03130668U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- distortion correction
- time constant
- receiving
- pincushion distortion
- 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
Links
- 241000226585 Antennaria plantaginifolia Species 0.000 claims description 5
- 230000010354 integration Effects 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
Landscapes
- Details Of Television Scanning (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は従来の左右糸巻き歪補正回路図、第３図はＳ
字補正コンデンサの両端電圧Ｖｓがパラボラ状に
変調される様子を示す電圧波形図、第４図ａはパ
ラボラ状に変調された水平偏向電流を示す電流波
形図、第４図ｂは左右糸巻き歪を示す説明図であ
る。
１……垂直出力回路、２……垂直偏向コイル、
３……結合コンデンサ、４……帰還抵抗、５，３
５……ミラー積分回路、７，２７……ミラー積分
抵抗、９……ミラー積分コンデンサ、１０……パ
ラボラ出力回路、１３……水平出力回路、１６…
…Ｓ字補正コンデンサ、１７ａ，１７ｂ……共振
コンデンサ、１８ａ，１８ｂ……ダンパーダイオ
ード、１９……フライバツクトランス、２０……
水平偏向コイル、２１……水平出力トランジスタ
、３０……ミラー積分時定数切換回路、３１……
スイツチングトランジスタ。
Figure 1 is a circuit diagram showing one embodiment of the present invention;
The figure is a conventional left and right pincushion distortion correction circuit diagram, and Figure 3 is the S
Figure 4a is a voltage waveform diagram showing how the voltage Vs across the correction capacitor is modulated in a parabolic manner, Figure 4a is a current waveform diagram showing the horizontal deflection current modulated in a parabolic manner, and Figure 4b is a diagram showing left and right pincushion distortion. FIG. 1... Vertical output circuit, 2... Vertical deflection coil,
3...Coupling capacitor, 4...Feedback resistor, 5,3
5... Miller integrating circuit, 7, 27... Miller integrating resistor, 9... Miller integrating capacitor, 10... Parabolic output circuit, 13... Horizontal output circuit, 16...
...S-shaped correction capacitor, 17a, 17b... Resonance capacitor, 18a, 18b... Damper diode, 19... Flyback transformer, 20...
Horizontal deflection coil, 21...Horizontal output transistor, 30...Miller integration time constant switching circuit, 31...
switching transistor.
Claims (1)
受信できるテレビジヨン受像機の左右糸巻き歪補
正回路であつて、垂直偏向コイルに流れる垂直偏
向電流ののこぎり波を所定の時定数で積分してパ
ラボラ波を発生させる積分回路を有し、該パラボ
ラ波を歪補正信号として水平出力回路に供給して
水平偏向コイルに流れる水平偏向電流を変調せし
める左右糸巻き歪補正回路において、 前記積分回路の積分時定数を、ＮＴＳＣ方式の
信号受信時は小に、ＰＡＬ方式の信号受信時は大
に各々切換える時定数切換回路を備えたことを特
徴とする左右糸巻き歪補正回路。[Claim for Utility Model Registration] A right and left pincushion distortion correction circuit for a television receiver capable of receiving both NTSC and PAL signals, which corrects the sawtooth wave of a vertical deflection current flowing through a vertical deflection coil with a predetermined time constant. In a left-right pincushion distortion correction circuit that has an integration circuit that integrates and generates a parabolic wave, and supplies the parabolic wave as a distortion correction signal to a horizontal output circuit to modulate a horizontal deflection current flowing through a horizontal deflection coil, the integration circuit 1. A left and right pincushion distortion correction circuit comprising a time constant switching circuit that switches the integration time constant of 1 to 1 when receiving an NTSC signal and to a large value when receiving a PAL signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3574490U JPH03130668U (en) | 1990-04-04 | 1990-04-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3574490U JPH03130668U (en) | 1990-04-04 | 1990-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03130668U true JPH03130668U (en) | 1991-12-27 |
Family
ID=31541365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3574490U Pending JPH03130668U (en) | 1990-04-04 | 1990-04-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03130668U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009137059A (en) * | 2007-12-04 | 2009-06-25 | Daio Paper Corp | Sheet for adhesive slip |
| JP2010039165A (en) * | 2008-08-05 | 2010-02-18 | Lintec Corp | Pseudo adhesive label |
-
1990
- 1990-04-04 JP JP3574490U patent/JPH03130668U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009137059A (en) * | 2007-12-04 | 2009-06-25 | Daio Paper Corp | Sheet for adhesive slip |
| JP2010039165A (en) * | 2008-08-05 | 2010-02-18 | Lintec Corp | Pseudo adhesive label |
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