JPH02120969U - - Google Patents
Info
- Publication number
- JPH02120969U JPH02120969U JP2998789U JP2998789U JPH02120969U JP H02120969 U JPH02120969 U JP H02120969U JP 2998789 U JP2998789 U JP 2998789U JP 2998789 U JP2998789 U JP 2998789U JP H02120969 U JPH02120969 U JP H02120969U
- Authority
- JP
- Japan
- Prior art keywords
- base
- transistor
- horizontal
- excitation
- diode
- 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 9
- 238000004804 winding Methods 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims description 4
- 230000010355 oscillation Effects 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 2
Landscapes
- Details Of Television Scanning (AREA)
Description
第１図は本考案になる水平偏向回路の一実施例
を示す図、第２図は従来の水平偏向回路の一例を
示す図、第３図は回路動作を説明するための波形
図、第４図は水平出力トランジスタのローカスを
示す図である。
１……水平発振回路、Ｃ１……帰線共振コンデ
ンサ、Ｃ２……Ｓ字補正コンデンサ、Ｄ１……ダ
ンパーダイオード、Ｄ２〜Ｄ４……ダイオード（
第１〜第３のダイオード）、＋Ｅｄ……直流電源
電圧、−Ｅ……負直流電源電圧、Ｉｂ……ベース
電流、Ｌ……水平偏向コイル、Ｐ……水平同期信
号パルス、Ｑ１……励振トランジスタ、Ｑ２……
水平出力トランジスタ、Ｑ３……引抜き用トラン
ジスタ、Ｒ１〜Ｒ４……抵坑、Ｒ５……小抵抗、
Ｔ……励振トランス、Ｔａ……１次巻線、Ｔｂ…
…２次巻線、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 diagram showing an example of a conventional horizontal deflection circuit, Fig. 3 is a waveform diagram for explaining the circuit operation, and Fig. 4 is a diagram showing an example of the conventional horizontal deflection circuit. The figure is a diagram showing the locus of a horizontal output transistor. 1...Horizontal oscillation circuit, C1 ...Retrace line resonant capacitor, C2 ...S-shaped correction capacitor, D1 ...Damper diode, D2 to D4 ...Diode (
(first to third diodes), +Ed...DC power supply voltage, -E...Negative DC power supply voltage, Ib...Base current, L...Horizontal deflection coil, P...Horizontal synchronization signal pulse, Q1 ... Excitation transistor, Q2 ...
Horizontal output transistor, Q 3 ... extraction transistor, R 1 to R 4 ... resistance, R 5 ... small resistance,
T...excitation transformer, Ta...primary winding, Tb...
...Secondary winding, Vosc...Horizontal oscillation pulse.
Claims (1)
ースに加えられる励振トランジスタと、この励振
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、この励振トランスの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、 更に、前記励振トランスの２次巻線と前記水平
出力トランジスタのベースとの間に、前記水平出
力トランジスタのベース少数キヤリアを引抜くた
めに前記水平出力トランジスタの負方向ベース電
流を流す引抜き用トランジスタ及び負電源よりな
る引抜き回路を備えた水平偏向回路において、 前記引抜き用トランジスタのベース・エミツタ
間にそれぞれ逆方向の向きに並列に接続した第１
、第２のダイオードと、 前記励振トランスの２次巻線のアース側と前記
水平出力トランジスタのベースとの間に、アース
からベースの方向に導通する向きに接続した第３
のダイオードと を備えたことを特徴とする水平偏向回路。[Claims for Utility Model Registration] A horizontal oscillation circuit, an excitation transistor to which the output of the horizontal oscillation circuit is applied to the base, an excitation transformer whose primary winding is connected to the collector of the excitation transistor, and an excitation transformer whose primary winding is connected to the collector of the excitation transistor. a horizontal output transistor whose base is connected to a secondary winding, and further extracts a base minority carrier of the horizontal output transistor between the secondary winding of the excitation transformer and the base of the horizontal output transistor. In order to achieve this, in a horizontal deflection circuit including an extraction circuit consisting of an extraction transistor through which a negative base current of the horizontal output transistor flows and a negative power supply, the base and emitter of the extraction transistor are connected in parallel in opposite directions. The first
, a second diode, and a third diode connected between the ground side of the secondary winding of the excitation transformer and the base of the horizontal output transistor so as to conduct in a direction from the ground to the base.
A horizontal deflection circuit characterized by comprising a diode and a diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2998789U JPH02120969U (en) | 1989-03-16 | 1989-03-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2998789U JPH02120969U (en) | 1989-03-16 | 1989-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02120969U true JPH02120969U (en) | 1990-10-01 |
Family
ID=31254647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2998789U Pending JPH02120969U (en) | 1989-03-16 | 1989-03-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02120969U (en) |
-
1989
- 1989-03-16 JP JP2998789U patent/JPH02120969U/ja active Pending
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