JPH01156661U - - Google Patents
Info
- Publication number
- JPH01156661U JPH01156661U JP5334288U JP5334288U JPH01156661U JP H01156661 U JPH01156661 U JP H01156661U JP 5334288 U JP5334288 U JP 5334288U JP 5334288 U JP5334288 U JP 5334288U JP H01156661 U JPH01156661 U JP H01156661U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- horizontal
- excitation
- transistor
- 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 13
- 230000010355 oscillation Effects 0.000 claims description 11
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 7
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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- Details Of Television Scanning (AREA)
Description
第１図は本考案による水平偏向回路の一実施例
を示す図、第２図はその波形説明図、第３図は本
考案中に使用するトランジスタの特性図、第４図
は本考案の一部の回路の具体例を示す図、第５図
は同じく本考案の一部の回路の他の具体例を示す
図、第６図は従来の水平偏向回路の一例を示す図
、第７図はその波形説明図である。
１…水平発振回路、２…励振ＮＰＮトランジス
タ、３…入力抵抗、４…励振トランス、５…電流
制限抵抗、６…水平出力ＮＰＮトランジスタ、７
…ダンパーダイオード、８…帰線共振コンデンサ
、９…水平偏向コイル、１０…Ｓ字補正コンデン
サ、１１…フライバツクトランス、１２…高圧整
流回路、１３…水平発振停止回路、１４…バイア
ス回路、１５…結合コンデンサ、１６…クランプ
ダイオード、１７…充放電抵抗、１８…ＮＰＮト
ランジスタ、１９，２０…エミツタ抵抗、ＣＴ…
制御信号、Ｅｂ…ベース電圧、＋Ｅｄ，＋Ｅｏ，
＋Ｅ…直流電源（電圧）、Ｅｈｖ…直流高圧、Ｉ
ｂ…ベース電流、Ｉｃ…出力コレクタ電流、Ｉｄ
…ダンパー電流、Ｉｙ…水平偏向電流、Ｐ…水平
同期信号、Ｔｓｔｇ…蓄積時間、Ｖｃｐ…コレク
タパルス、Ｖｄ…水平励振パルス、Ｖｈｖ…高圧
パルス、Ｖｏｓｃ…水平発振パルス。
Fig. 1 is a diagram showing an embodiment of the horizontal deflection circuit according to the present invention, Fig. 2 is a waveform explanation diagram thereof, Fig. 3 is a characteristic diagram of a transistor used in the present invention, and Fig. 4 is an embodiment of the horizontal deflection circuit according to the present invention. 5 is a diagram showing another specific example of a part of the circuit of the present invention, FIG. 6 is a diagram showing an example of a conventional horizontal deflection circuit, and FIG. 7 is a diagram showing an example of a conventional horizontal deflection circuit. It is a waveform explanatory diagram. DESCRIPTION OF SYMBOLS 1... Horizontal oscillation circuit, 2... Excitation NPN transistor, 3... Input resistance, 4... Excitation transformer, 5... Current limiting resistor, 6... Horizontal output NPN transistor, 7
... Damper diode, 8... Retrace resonant capacitor, 9... Horizontal deflection coil, 10... S-shaped correction capacitor, 11... Flyback transformer, 12... High voltage rectifier circuit, 13... Horizontal oscillation stop circuit, 14... Bias circuit, 15... Coupling capacitor, 16... Clamp diode, 17... Charge/discharge resistor, 18... NPN transistor, 19, 20... Emitter resistor, CT...
Control signal, Eb...Base voltage, +Ed, +Eo,
+E...DC power supply (voltage), Ehv...DC high voltage, I
b...Base current, Ic...Output collector current, Id
...Damper current, Iy...Horizontal deflection current, P...Horizontal synchronization signal, Tstg...Storage time, Vcp...Collector pulse, Vd...Horizontal excitation pulse, Vhv...High voltage pulse, Vosc...Horizontal oscillation pulse.
Claims (1)
を停止させる停止回路と、この停止可能な水平発
振回路の出力がベースに加えられる励振トランジ
スタと、該励振トランジスタのコレクタに１次巻
線が接続された励振トランスと、該励振トランス
の２次巻線にベースが接続された水平出力トラン
ジスタとを備えた水平偏向回路において、 上記水平発振出力の停止時に、前記水平発振出
力が停止した事によつて、前記励振トランジスタ
のベース電流を一定の直流値にし、前記励振トラ
ンジスタを自動的に導通させる回路手段を備えた
事を特徴とする水平偏向回路。 (2) 水平発振出力の停止時に、励振トランジス
タのベース電流を一定の直流値にする手段は、前
記水平発振出力波形をコンデンサを通した後、波
形頂部をダイオードにより定められた直流電圧に
クランプする回路であつて、水平発振出力が停止
した時には、前記直流電圧によつて定まる一定の
電流を前記励振トランジスタのベースに流して、
前記励振トランジスタを自動的に導通させる様に
した事を特徴とする実用新案登録請求の範囲第１
項記載の水平偏向回路。[Claims for Utility Model Registration] (1) A horizontal oscillation circuit, a stop circuit that stops the output of this horizontal oscillation circuit, an excitation transistor to whose base the output of the horizontal oscillation circuit that can be stopped is applied, and the excitation transistor In a horizontal deflection circuit comprising an excitation transformer having a primary winding connected to the collector of the excitation transformer, and a horizontal output transistor having a base connected to the secondary winding of the excitation transformer, when the horizontal oscillation output is stopped, the 1. A horizontal deflection circuit comprising circuit means for automatically turning on the excitation transistor by setting the base current of the excitation transistor to a constant DC value when the horizontal oscillation output is stopped. (2) When the horizontal oscillation output is stopped, the means for keeping the base current of the excitation transistor at a constant DC value is to pass the horizontal oscillation output waveform through a capacitor, and then clamp the top of the waveform to a predetermined DC voltage using a diode. In the circuit, when the horizontal oscillation output stops, a constant current determined by the DC voltage is caused to flow through the base of the excitation transistor,
Utility model registration claim 1, characterized in that the excitation transistor is automatically made conductive.
Horizontal deflection circuit as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5334288U JPH01156661U (en) | 1988-04-20 | 1988-04-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5334288U JPH01156661U (en) | 1988-04-20 | 1988-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01156661U true JPH01156661U (en) | 1989-10-27 |
Family
ID=31279325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5334288U Pending JPH01156661U (en) | 1988-04-20 | 1988-04-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01156661U (en) |
-
1988
- 1988-04-20 JP JP5334288U patent/JPH01156661U/ja active Pending
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