JPH0485961U - - Google Patents
Info
- Publication number
- JPH0485961U JPH0485961U JP12885990U JP12885990U JPH0485961U JP H0485961 U JPH0485961 U JP H0485961U JP 12885990 U JP12885990 U JP 12885990U JP 12885990 U JP12885990 U JP 12885990U JP H0485961 U JPH0485961 U JP H0485961U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- horizontal
- output
- base current
- oscillation
- 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
- 238000007493 shaping process Methods 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Details Of Television Scanning (AREA)
Description
第１図は第１実施例のブロツク構成図、第２図
は及び第３図はその一部分の具体的回路図、第４
図は従来例のブロツク構成図、第５図はその動作
説明図である。
１……水平発振回路、２……水平励振回路、３
……水平励振トランス、４……水平出力トランジ
スタ、５……第１のベース抵抗、６……ダンパー
ダイオード、７……帰線共振コンデンサ、８……
水平偏向コイル、９……Ｓ字補正コンデンサ、１
０……水平出力トランス、１１……Ｉｂｎ引出し
回路、１２……波形整形回路、１３……第２のベ
ース抵抗、１４……検波回路、１５……停止回路
、＋ＥＢ……第１の直流電源、−Ｅ……第２の直
流電源。
FIG. 1 is a block configuration diagram of the first embodiment, FIGS. 2 and 3 are specific circuit diagrams of a part thereof, and FIG.
The figure is a block diagram of a conventional example, and FIG. 5 is an explanatory diagram of its operation. 1...Horizontal oscillation circuit, 2...Horizontal excitation circuit, 3
... Horizontal excitation transformer, 4 ... Horizontal output transistor, 5 ... First base resistor, 6 ... Damper diode, 7 ... Retrace line resonant capacitor, 8 ...
Horizontal deflection coil, 9...S-shaped correction capacitor, 1
0... Horizontal output transformer, 11... I bn extraction circuit, 12... Waveform shaping circuit, 13... Second base resistor, 14... Detection circuit, 15... Stop circuit, +EB... First DC Power supply, -E...Second DC power supply.
Claims (1)
路と、 前記水平発振回路の出力が供給される水平励振
回路と、 前記水平励振回路の出力によりスイツチング動
作を行う水平出力トランジスタを備えた水平出力
回路と、 前記水平励振回路と前記水平出力回路とに電力
を供給する第１の直流電源と、 前記水平出力トランジスタのベースに接続され
、前記水平出力トランジスタの逆ベース電流を流
す逆ベース電流引出し回路と、 前記逆ベース電流引出し回路に電力を供給する
第２の直流電源とを備えた水平偏向回路において
、 前記逆ベース電流引出し回路の回路動作が停止
したことを前記逆ベース電流引出し回路の出力波
形より検出して、前記水平発振回路及び前記水平
励振回路の内の少なくとも一つの回路動作を停止
させる停止回路を設けたことを特徴とする水平偏
向回路。 (2) 前記逆ベース電流引出し回路は、波形整形
回路を備え、 前記波形整形回路は、前記水平発振回路の出力
波形に同期し、かつ前記水平発振回路の出力が停
止した場合にも自励発振する回路であり、 前記逆ベース電流引出し回路は、前記波形整形
回路の出力波形に基づいて逆ベース電流引出し動
作を行うことを特徴とする請求項１記載の水平偏
向回路。[Claims for Utility Model Registration] (1) A horizontal oscillation circuit that operates according to the horizontal deflection cycle, a horizontal excitation circuit to which the output of the horizontal oscillation circuit is supplied, and a switching operation performed by the output of the horizontal excitation circuit. a horizontal output circuit including a horizontal output transistor; a first DC power supply that supplies power to the horizontal excitation circuit and the horizontal output circuit; In a horizontal deflection circuit comprising an inverse base current draw circuit that allows current to flow, and a second DC power supply that supplies power to the inverse base current draw circuit, the circuit operation of the inverse base current draw circuit has stopped. 1. A horizontal deflection circuit comprising: a stop circuit that detects an output waveform of an inverse base current extraction circuit and stops the operation of at least one of the horizontal oscillation circuit and the horizontal excitation circuit. (2) The reverse base current drawing circuit includes a waveform shaping circuit, and the waveform shaping circuit synchronizes with the output waveform of the horizontal oscillation circuit and performs self-oscillation even when the output of the horizontal oscillation circuit stops. 2. The horizontal deflection circuit according to claim 1, wherein the reverse base current drawing circuit performs a reverse base current drawing operation based on the output waveform of the waveform shaping circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12885990U JPH0485961U (en) | 1990-11-30 | 1990-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12885990U JPH0485961U (en) | 1990-11-30 | 1990-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0485961U true JPH0485961U (en) | 1992-07-27 |
Family
ID=31876297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12885990U Pending JPH0485961U (en) | 1990-11-30 | 1990-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0485961U (en) |
-
1990
- 1990-11-30 JP JP12885990U patent/JPH0485961U/ja active Pending