JPH036679U - - Google Patents
Info
- Publication number
- JPH036679U JPH036679U JP6582989U JP6582989U JPH036679U JP H036679 U JPH036679 U JP H036679U JP 6582989 U JP6582989 U JP 6582989U JP 6582989 U JP6582989 U JP 6582989U JP H036679 U JPH036679 U JP H036679U
- Authority
- JP
- Japan
- Prior art keywords
- current
- deflection
- value
- circuit
- constant
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Details Of Television Scanning (AREA)
- Control Of Amplification And Gain Control (AREA)
Description
第１図は本考案の一実施例で偏向回路に組合わ
せ構成した回路ブロツク図、第２図は偏向回路の
各部の電圧もしくは電流波形図、第３図は従来例
の回路ブロツク図である。
１……カレントミラー回路、２……定電流源、
３……放電回路、４……差動増幅器、５……偏向
出力回路、６……ポテンシヨメータ、７，８……
抵抗、９……コンデンサ、１０……偏向ヨーク、
１２……帰還抵抗、３５……抵抗、３６……ダイ
オード、４０……ランプ波形増幅回路、４１……
（ピーク値検出ホールド手段となる）ピークホー
ルド回路、４２……（制御電流発生手段となる）
ピーク値判定回路。
FIG. 1 is a circuit block diagram of an embodiment of the present invention combined with a deflection circuit, FIG. 2 is a voltage or current waveform diagram of each part of the deflection circuit, and FIG. 3 is a circuit block diagram of a conventional example. 1... Current mirror circuit, 2... Constant current source,
3... Discharge circuit, 4... Differential amplifier, 5... Deflection output circuit, 6... Potentiometer, 7, 8...
Resistor, 9... Capacitor, 10... Deflection yoke,
12... Feedback resistor, 35... Resistor, 36... Diode, 40... Ramp waveform amplification circuit, 41...
Peak hold circuit (becomes a peak value detection and hold means), 42... (becomes a control current generation means)
Peak value judgment circuit.
Claims (1)
値の定電流をコンデンサに流し、垂直周波数の発
振パルスにより放電して、のこぎり波を作成し、
該のこぎり波によつて偏向ヨークに流れる偏向電
流を制御するデイスプレイ装置の垂直偏向電流振
幅制回路において、前記偏向電流のピーク値を検
出ホールドする手段と、該ピークホールド値を一
定値と比較し、該一定値を超えたときに、前記カ
レントミラー回路の前記定電流を減少させる制御
電流を発生する手段とを設けたことを特徴とする
垂直偏向電流振幅制限回路。 A constant current of a predetermined value generated by a current mirror circuit is passed through a capacitor, and is discharged by an oscillation pulse of a vertical frequency to create a sawtooth wave.
In a vertical deflection current amplitude control circuit of a display device that controls a deflection current flowing through the deflection yoke by the sawtooth wave, means for detecting and holding a peak value of the deflection current, and comparing the peak hold value with a constant value; A vertical deflection current amplitude limiting circuit comprising means for generating a control current that reduces the constant current of the current mirror circuit when the constant current exceeds the certain value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6582989U JPH079192Y2 (en) | 1989-06-07 | 1989-06-07 | Vertical deflection current amplitude limiting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6582989U JPH079192Y2 (en) | 1989-06-07 | 1989-06-07 | Vertical deflection current amplitude limiting circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH036679U true JPH036679U (en) | 1991-01-23 |
| JPH079192Y2 JPH079192Y2 (en) | 1995-03-06 |
Family
ID=31598014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6582989U Expired - Lifetime JPH079192Y2 (en) | 1989-06-07 | 1989-06-07 | Vertical deflection current amplitude limiting circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH079192Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001215102A (en) * | 2000-02-03 | 2001-08-10 | Mikuni Corp | Position detection device |
| KR200476653Y1 (en) * | 2014-04-09 | 2015-03-17 | 성 엽 이 | Cheer T-Shirt |
-
1989
- 1989-06-07 JP JP6582989U patent/JPH079192Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001215102A (en) * | 2000-02-03 | 2001-08-10 | Mikuni Corp | Position detection device |
| KR200476653Y1 (en) * | 2014-04-09 | 2015-03-17 | 성 엽 이 | Cheer T-Shirt |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH079192Y2 (en) | 1995-03-06 |