JPH0322473U - - Google Patents
Info
- Publication number
- JPH0322473U JPH0322473U JP8120789U JP8120789U JPH0322473U JP H0322473 U JPH0322473 U JP H0322473U JP 8120789 U JP8120789 U JP 8120789U JP 8120789 U JP8120789 U JP 8120789U JP H0322473 U JPH0322473 U JP H0322473U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- waveform
- parabolic voltage
- integrating circuit
- voltage waveform
- 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
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 230000002194 synthesizing effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
Landscapes
- Details Of Television Scanning (AREA)
Description
第１図は本考案によるダイナミツクフオーカス
回路の一実施例を示す回路図、第２図は第１図の
ダイナミツクフオーカス回路の動作を説明するた
めの波形図、第３図は従来のダイナミツクフオー
カス回路の回路図、第４図は従来のダイナミツク
フオーカス回路の課題を説明するための波形図で
ある。
１……パルス発生回路、２，５……積分回路、
３……パラボラ波増幅回路、４……波形合成回路
、６……波形クリツプ回路、７……波形増幅回路
、８……合成波増幅回路、９……結合コンデンサ
、１０……直流高電圧源、１１……陰極線管、１
２……フオーカス電極。
FIG. 1 is a circuit diagram showing an embodiment of the dynamic focus circuit according to the present invention, FIG. 2 is a waveform diagram for explaining the operation of the dynamic focus circuit of FIG. FIG. 4, a circuit diagram of a dynamic focus circuit, is a waveform diagram for explaining the problems of the conventional dynamic focus circuit. 1...Pulse generation circuit, 2, 5...Integrator circuit,
3... Parabolic wave amplification circuit, 4... Waveform synthesis circuit, 6... Waveform clipping circuit, 7... Waveform amplification circuit, 8... Synthetic wave amplification circuit, 9... Coupling capacitor, 10... DC high voltage source , 11... cathode ray tube, 1
2...Focus electrode.
Claims (1)
発生回路と、このパルス発生回路から出力される
パルスを積分してパラボラ電圧波形を作り出す第
１の積分回路と、上記パルス発生回路から出力さ
れるパルスを上記第１の積分回路とは異なる時定
数で積分してより急峻なパラボラ電圧波形を作り
出す第２の積分回路と、この第２の積分回路から
出力されるパラボラ電圧波形のあるレベル以下を
クリツプする波形クリツプ回路と、上記第１の積
分回路から出力されるパラボラ電圧波形に上記波
形クリツプ回路から出力されるクリツプ電圧波形
を合成する波形合成回路とを備え、この波形合成
回路から出力される合成パラボラ電圧波形がフオ
ーカス用の直流高電圧に重畳されて陰極線管のフ
オーカス電極に印加されることを特徴とするダイ
ナミツクフオーカス回路。 a pulse generating circuit that outputs pulses with horizontal and vertical periods; a first integrating circuit that integrates the pulses output from this pulse generating circuit to create a parabolic voltage waveform; A second integrating circuit that integrates with a time constant different from that of the first integrating circuit to create a steeper parabolic voltage waveform, and a waveform that clips the parabolic voltage waveform output from the second integrating circuit below a certain level. a clipping circuit; and a waveform synthesis circuit for synthesizing the clipped voltage waveform outputted from the waveform clipping circuit with the parabolic voltage waveform outputted from the first integrating circuit, the synthesized parabolic voltage output from the waveform synthesis circuit. A dynamic focus circuit characterized in that a waveform is superimposed on a focus DC high voltage and applied to a focus electrode of a cathode ray tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8120789U JPH0322473U (en) | 1989-07-12 | 1989-07-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8120789U JPH0322473U (en) | 1989-07-12 | 1989-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0322473U true JPH0322473U (en) | 1991-03-07 |
Family
ID=31626938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8120789U Pending JPH0322473U (en) | 1989-07-12 | 1989-07-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0322473U (en) |
-
1989
- 1989-07-12 JP JP8120789U patent/JPH0322473U/ja active Pending
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