JPH024362U - - Google Patents
Info
- Publication number
- JPH024362U JPH024362U JP8140788U JP8140788U JPH024362U JP H024362 U JPH024362 U JP H024362U JP 8140788 U JP8140788 U JP 8140788U JP 8140788 U JP8140788 U JP 8140788U JP H024362 U JPH024362 U JP H024362U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- switching
- pulse voltage
- horizontal
- output
- 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
- 230000005284 excitation Effects 0.000 claims description 6
- 230000010355 oscillation Effects 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 8
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Details Of Television Scanning (AREA)
Description
第１図は本考案による水平偏向コイル切換回路
の一実施例を示すブロツク図、第２図はその中の
回路の一部の例を示す図、第３図は従来の水平偏
向コイル切換回路の例を示すブロツク図、第４図
はその中の回路の一部の例を示す図、第５図は第
３図の正常動作状態の時の各部の波形説明図、第
６図は第３図の中の回路の一部の例を示す図、第
７図はその波形説明図、第８図は第３図の異常動
作状態の時の波形説明図である。
１……水平発振回路、２……励振回路、３……
水平出力回路、４……水平偏向コイル、５……切
換回路、６……遮断回路、７，７′……タイミン
グ回路、８……電磁リレイ、８ａ，８ｂ……電磁
リレイの巻線、９，９′……リレイ駆動回路、１
０……Ｓ字補正コンデンサ、１１……放電抵抗、
１２，１４，１５，１６……単安定マルチバイブ
レータ、１３……遅延回路、１７……波形整形回
路、２１……スライスダイオード、２４……イン
バータ素子、２５……ＮＡＮＤ素子、２６……Ｍ
ＭのＩＣ、２７……時定数抵抗、２８……時定数
コンデンサ、ＣＴ……制御信号、＋Ｅ，＋Ｅｂ…
…直流電源電圧、Ｉｙ……水平偏向コイル電流、
Ｐ……同期信号、Ｓ……切換スイツチ、Ｓ１，Ｓ
２……切換接点（スイツチ）、Ｖｃ……Ｓ字補正
コンデンサ電圧、Ｖｃ′……パルス、Ｖｃｌ……
クリアパルス、Ｖｄ……励振パルス、Ｖｏｓｃ…
…水平発振パルス、Ｖｓｌ……スライスレベル、
Ｖｓｔ……パルス（遮断信号）、Ｖｓｗ……パル
ス（切換信号）。
Fig. 1 is a block diagram showing one embodiment of the horizontal deflection coil switching circuit according to the present invention, Fig. 2 is a diagram showing a part of the circuit therein, and Fig. 3 is a block diagram of a conventional horizontal deflection coil switching circuit. A block diagram showing an example, FIG. 4 is a diagram showing an example of a part of the circuit therein, FIG. 5 is an explanatory diagram of waveforms of each part in the normal operating state of FIG. 3, and FIG. FIG. 7 is an explanatory diagram of waveforms thereof, and FIG. 8 is an explanatory diagram of waveforms in the abnormal operating state of FIG. 3. 1...Horizontal oscillation circuit, 2...Excitation circuit, 3...
Horizontal output circuit, 4... Horizontal deflection coil, 5... Switching circuit, 6... Breaking circuit, 7, 7'... Timing circuit, 8... Electromagnetic relay, 8a, 8b... Winding of electromagnetic relay, 9 , 9'... Relay drive circuit, 1
0...S-shaped correction capacitor, 11...Discharge resistor,
12, 14, 15, 16... Monostable multivibrator, 13... Delay circuit, 17... Waveform shaping circuit, 21... Slice diode, 24... Inverter element, 25... NAND element, 26... M
M IC, 27... Time constant resistor, 28... Time constant capacitor, CT... Control signal, +E, +Eb...
...DC power supply voltage, Iy...Horizontal deflection coil current,
P... Synchronization signal, S... Changeover switch, S 1 , S
2 ...Changing contact (switch), Vc...S-shaped correction capacitor voltage, Vc'...Pulse, Vcl...
Clear pulse, Vd...excitation pulse, Vosc...
...Horizontal oscillation pulse, Vsl...slice level,
Vst...Pulse (cutoff signal), Vsw...Pulse (switching signal).
Claims (1)
を増幅する励振回路と、前記水平発振回路の出力
を前記励振回路に供給する作用を遮断する遮断回
路と、前記励振回路の出力によつて励振される水
平出力回路と、この水平出力回路に接続された水
平偏向コイルと、この水平偏向コイルの接続状態
を切換える切換スイツチと、前記切換スイツチに
接続されて前記水平偏向コイルと直列に入るＳ字
補正コンデンサ及び放電用抵抗の並列回路とから
なる水平偏向コイル切換回路において、 前記水平発振回路から前記励振回路への供給遮
断より遅れて前記切換スイツチを切換える手段と
、前記Ｓ字補正コンデンサの電圧の、前記切換ス
イツチの切換え途中に一旦下降し、その後切換え
完了と共に上昇する部分のみを電圧スライスする
事によつて第１のパルス電圧として取出す手段と
、前記第１のパルス電圧を前記スイツチ切換えの
為の切換信号によつてゲートする事によつて第２
のパルス電圧を取出す手段と、前記第２のパルス
電圧後縁以降より開始する第３のパルス電圧を生
成する手段と、この第３のパルス電圧によつて前
記遮断回路を動作させる遮断信号を発生する為の
第１の単安定マルチバイブレータ出力をクリアす
る手段とを備えた事を特徴とする水平偏向コイル
切換回路。 (2) 請求項第１項におけるゲート作用は、前記
第１のパルス電圧と前記スイツチ切換えの為の切
換信号とを互いに逆相にして第２の単安定マルチ
バイブレータの二つの入力に各々加え、前記第２
の単安定マルチバイブレータ出力により前記第２
のパルス電圧を生成する様にした事を特徴とする
水平偏向コイル切換回路。[Claims for Utility Model Registration] (1) A horizontal oscillation circuit, an excitation circuit that amplifies the output of the horizontal oscillation circuit, and a cutoff circuit that blocks the function of supplying the output of the horizontal oscillation circuit to the excitation circuit; a horizontal output circuit excited by the output of the excitation circuit; a horizontal deflection coil connected to the horizontal output circuit; a switch for switching the connection state of the horizontal deflection coil; In a horizontal deflection coil switching circuit comprising a parallel circuit of an S-shaped correction capacitor and a discharge resistor connected in series with a horizontal deflection coil, means for switching the changeover switch later than the cutoff of supply from the horizontal oscillation circuit to the excitation circuit; , means for extracting as a first pulse voltage by slicing only the portion of the voltage of the S-shaped correction capacitor that once drops during switching of the changeover switch and then rises when switching is completed; The second pulse voltage is gated by a switching signal for switching the switch.
means for extracting a pulse voltage; means for generating a third pulse voltage starting from the trailing edge of the second pulse voltage; and generating a cutoff signal for operating the cutoff circuit by the third pulse voltage. 1. A horizontal deflection coil switching circuit comprising means for clearing a first monostable multivibrator output. (2) The gate action in claim 1 includes applying the first pulse voltage and the switching signal for switching the switch to two inputs of a second monostable multivibrator in opposite phases to each other, Said second
The second monostable multivibrator output
A horizontal deflection coil switching circuit characterized by generating a pulse voltage of .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8140788U JPH024362U (en) | 1988-06-20 | 1988-06-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8140788U JPH024362U (en) | 1988-06-20 | 1988-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH024362U true JPH024362U (en) | 1990-01-11 |
Family
ID=31306189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8140788U Pending JPH024362U (en) | 1988-06-20 | 1988-06-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH024362U (en) |
-
1988
- 1988-06-20 JP JP8140788U patent/JPH024362U/ja active Pending
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