JPH0471074U - - Google Patents
Info
- Publication number
- JPH0471074U JPH0471074U JP11434090U JP11434090U JPH0471074U JP H0471074 U JPH0471074 U JP H0471074U JP 11434090 U JP11434090 U JP 11434090U JP 11434090 U JP11434090 U JP 11434090U JP H0471074 U JPH0471074 U JP H0471074U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- damper diode
- horizontal deflection
- parallel
- crt
- 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
- 239000003990 capacitor Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Details Of Television Scanning (AREA)
Description
第１図は一実施例のブロツク構成図、第２図は
第１図に示した実施例の回路図、第３図は他の実
施例の回路図、第４図は従来例の回路図、第５図
はビーム電流に対する補正量を示す図である。
１……水平出力トランジスタ、２……第１のダ
ンパーダイオード、３……第２のダンパーダイオ
ード、４……第１の共振コンデンサ、５……第２
の共振コンデンサ、６……水平偏向コイル、７…
…Ｓ字補正コンデンサ、８……フライバツクトラ
ンス、９，１２……制御回路、１０……比較回路
、１１……検出回路。
FIG. 1 is a block diagram of one embodiment, FIG. 2 is a circuit diagram of the embodiment shown in FIG. 1, FIG. 3 is a circuit diagram of another embodiment, and FIG. 4 is a circuit diagram of a conventional example. FIG. 5 is a diagram showing the amount of correction for beam current. DESCRIPTION OF SYMBOLS 1... Horizontal output transistor, 2... First damper diode, 3... Second damper diode, 4... First resonant capacitor, 5... Second
resonant capacitor, 6...horizontal deflection coil, 7...
... S-shaped correction capacitor, 8 ... flyback transformer, 9, 12 ... control circuit, 10 ... comparison circuit, 11 ... detection circuit.
Claims (1)
回路に、第１の共振コンデンサと第１のダンパー
ダイオードとの並列回路を並列に接続し、 この並列回路に、第２の共振コンデンサと第２
のダンパーダイオードとの並列回路を、前記第１
のダンパーダイオードの極性と前記第２のダンパ
ーダイオードの極性とが同極性になるように直列
に接続し、 この全体の直列回路の両端にスイツチング素子
を接続すると共にフライバツクトランスの１次側
巻線を介して直流電源電圧を印加した水平偏向回
路において、 前記第１のダンパーダイオードと前記第２のダ
ンパーダイオードとの接続点に制御回路を接続し
、 前記制御回路は、ＣＲＴのビーム電流が所定電
流値以上となつたときに、前記接続点の電圧を制
御し、ＣＲＴのビーム電流の変化による画像歪の
補正量を制御することを特徴とする水平偏向回路
。[Claims for Utility Model Registration] A parallel circuit of a first resonant capacitor and a first damper diode is connected in parallel to a series circuit of a horizontal deflection coil and an S-shaped correction capacitor, and a second resonant capacitor and the second
A parallel circuit with a damper diode is connected to the first damper diode.
are connected in series so that the polarity of the damper diode and the polarity of the second damper diode are the same, and switching elements are connected to both ends of this whole series circuit, and the primary winding of the flyback transformer is In the horizontal deflection circuit to which a DC power supply voltage is applied through the horizontal deflection circuit, a control circuit is connected to a connection point between the first damper diode and the second damper diode, and the control circuit controls the beam current of the CRT to a predetermined current. 1. A horizontal deflection circuit, characterized in that when the voltage exceeds a certain value, the voltage at the connection point is controlled to control the amount of correction of image distortion caused by a change in beam current of a CRT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11434090U JPH0471074U (en) | 1990-10-31 | 1990-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11434090U JPH0471074U (en) | 1990-10-31 | 1990-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0471074U true JPH0471074U (en) | 1992-06-23 |
Family
ID=31862015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11434090U Pending JPH0471074U (en) | 1990-10-31 | 1990-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0471074U (en) |
-
1990
- 1990-10-31 JP JP11434090U patent/JPH0471074U/ja active Pending
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