JPH01124769U - - Google Patents
Info
- Publication number
- JPH01124769U JPH01124769U JP2137188U JP2137188U JPH01124769U JP H01124769 U JPH01124769 U JP H01124769U JP 2137188 U JP2137188 U JP 2137188U JP 2137188 U JP2137188 U JP 2137188U JP H01124769 U JPH01124769 U JP H01124769U
- Authority
- JP
- Japan
- Prior art keywords
- horizontal
- circuit
- horizontal oscillation
- oscillation frequency
- pulse
- 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
- 230000010355 oscillation Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Synchronizing For Television (AREA)
Description
第１図は本考案になる水平偏向回路の一実施例
を示す構成図、第２図は従来の水平偏向回路を示
す構成図である。
１……水平発振回路、２……水平ドライブ回路
、３……水平出力回路、５……ＡＦＣ回路、６…
…検出部、７……制御部。
FIG. 1 is a block diagram showing an embodiment of a horizontal deflection circuit according to the present invention, and FIG. 2 is a block diagram showing a conventional horizontal deflection circuit. 1...Horizontal oscillation circuit, 2...Horizontal drive circuit, 3...Horizontal output circuit, 5...AFC circuit, 6...
...Detection section, 7...Control section.
Claims (1)
発振周波数に応じた水平パルスを形成する水平出
力回路と、入力された前記水平パルスと水平同期
信号との位相差により前記水平発振回路の水平発
振周波数の変動を自動制御するＡＦＣ回路と、 前記水平発振周波数に応じた検出電圧を生成す
る検出部と、前記検出電圧により前記水平発振周
波数が所定の水平周波数よりも低くなつた時に、
前記ＡＦＣ回路を停止させて前記水平発振回路を
自走（フリーラン）状態にする制御部とからなる
ことを特徴とする水平偏向回路。[Claims for Utility Model Registration] A horizontal oscillation circuit, a horizontal output circuit that forms a horizontal pulse according to the horizontal oscillation frequency from the horizontal oscillation circuit, and a horizontal output circuit that generates a horizontal pulse based on the phase difference between the inputted horizontal pulse and a horizontal synchronizing signal. an AFC circuit that automatically controls fluctuations in the horizontal oscillation frequency of the horizontal oscillation circuit; a detection unit that generates a detection voltage according to the horizontal oscillation frequency; When I get old,
A horizontal deflection circuit comprising: a control unit that stops the AFC circuit and puts the horizontal oscillation circuit in a free running state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2137188U JPH01124769U (en) | 1988-02-19 | 1988-02-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2137188U JPH01124769U (en) | 1988-02-19 | 1988-02-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01124769U true JPH01124769U (en) | 1989-08-24 |
Family
ID=31238555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2137188U Pending JPH01124769U (en) | 1988-02-19 | 1988-02-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01124769U (en) |
-
1988
- 1988-02-19 JP JP2137188U patent/JPH01124769U/ja active Pending