JPH01113468U - - Google Patents
Info
- Publication number
- JPH01113468U JPH01113468U JP698688U JP698688U JPH01113468U JP H01113468 U JPH01113468 U JP H01113468U JP 698688 U JP698688 U JP 698688U JP 698688 U JP698688 U JP 698688U JP H01113468 U JPH01113468 U JP H01113468U
- Authority
- JP
- Japan
- Prior art keywords
- sawtooth wave
- circuit
- signal
- flip
- flop
- 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
- 238000010586 diagram Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Details Of Television Scanning (AREA)
- Transforming Electric Information Into Light Information (AREA)
Description
第１図はこの考案の一実施例の構成を示す回路
図、第２図は第１図の動作を説明するために示す
タイミングチヤート、第３図はこの考案の他の実
施例をの構成を示す回路図、第４図は従来の投写
管保護回路の構成を示す回路図である。
１１……鋸歯状波発生回路、１２……鋸歯状波
供給回路、１３……加算回路、１４……垂直帰線
消去パルス発生回路、１５……コンパレータ、１
６……フリツプフロツプ回路、１２１……増幅回
路、Ｑ４〜Ｑ６……トランジスタ、Ｒ１〜Ｒ４，
Ｒ１１〜Ｒ１７……抵抗、Ｃ１，Ｃ２，Ｃ４，Ｃ
５……コンデンサ。
Fig. 1 is a circuit diagram showing the configuration of one embodiment of this invention, Fig. 2 is a timing chart shown to explain the operation of Fig. 1, and Fig. 3 shows the structure of another embodiment of this invention. FIG. 4 is a circuit diagram showing the configuration of a conventional projection tube protection circuit. 11...Sawtooth wave generation circuit, 12...Sawtooth wave supply circuit, 13...Addition circuit, 14...Vertical blanking pulse generation circuit, 15...Comparator, 1
6...Flip-flop circuit, 121...Amplification circuit, Q4-Q6...Transistor, R1-R4,
R11-R17...Resistance, C1, C2, C4, C
5... Capacitor.
Claims (1)
フリツプフロツプ回路と、 テレビジヨン信号の垂直同期信号に同期して垂
直偏向用の鋸歯状波信号を発生する鋸歯状波発生
回路と、 この鋸歯状波発生回路の出力信号を垂直偏向コ
イルに供給する鋸歯状波供給回路と、 垂直帰線期間に、上記鋸歯状波発生回路の信号
および上記鋸歯状波供給回路の出力信号のいずれ
か一方の信号に従つて上記フリツプフロツプ回路
をセツトし、かつ、他方の信号に従つてリセツト
するフリツプフロツプ駆動回路とを具備したこと
を特徴とする投写管保護回路。[Claims for Utility Model Registration] A flip-flop circuit that generates a signal to turn off a projection tube, and a sawtooth wave that generates a sawtooth wave signal for vertical deflection in synchronization with a vertical synchronization signal of a television signal. a sawtooth wave supply circuit that supplies the output signal of the sawtooth wave generation circuit to the vertical deflection coil; and a sawtooth wave supply circuit that supplies the output signal of the sawtooth wave generation circuit to the vertical deflection coil; 1. A projection tube protection circuit comprising a flip-flop drive circuit that sets the flip-flop circuit according to one of the signals and resets the flip-flop circuit according to the other signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP698688U JPH01113468U (en) | 1988-01-22 | 1988-01-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP698688U JPH01113468U (en) | 1988-01-22 | 1988-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01113468U true JPH01113468U (en) | 1989-07-31 |
Family
ID=31211616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP698688U Pending JPH01113468U (en) | 1988-01-22 | 1988-01-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01113468U (en) |
-
1988
- 1988-01-22 JP JP698688U patent/JPH01113468U/ja active Pending
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