KR970023501A - TV's CRT focus voltage stabilization circuit - Google Patents
TV's CRT focus voltage stabilization circuit Download PDFInfo
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- KR970023501A KR970023501A KR1019950037654A KR19950037654A KR970023501A KR 970023501 A KR970023501 A KR 970023501A KR 1019950037654 A KR1019950037654 A KR 1019950037654A KR 19950037654 A KR19950037654 A KR 19950037654A KR 970023501 A KR970023501 A KR 970023501A
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- voltage
- circuit
- luminance
- output
- focus
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Abstract
본 발명은 TV의 CRT에 공급되어 휘도에 영향을 주는 전자빔의 분포 상태를 조정하는 포커스 전압을 조정하기 위한 회로에 관한 것으로서, 더욱 구체적으로는 화면의 휘도에 따라서 플라이백 변성기(FBT)의 고압 변동으로 인하여 발생되는 포커스 전압을, FBT 고압의 변동에 관계없이 안정적으로 공급하기 위한 포커스 전압 안정화 회로에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit for adjusting a focus voltage for adjusting a distribution state of an electron beam, which is supplied to a CRT of a TV and affects brightness, and more specifically, high voltage fluctuation of a flyback transformer (FBT) according to the brightness of a screen. The present invention relates to a focus voltage stabilization circuit for stably supplying a focus voltage generated due to the FBT, regardless of a change in the FBT high voltage.
본 발명의 포커스 전압 안정화 회로는, R, G, B 신호을 처리하여 CRT에 출력하기 위한 영상 출력 회로와, 상기 CRT를 구동시키기 위한 전압을 공급하는 FBT를 포함하는 TV에 있어서, 상기 영상 출력 회로로부터 출력되는 휘도신호를 특정 레벨로 증폭하기 위한 휘도 증폭 회로와, 상기 휘도 증폭회로로부터 출력된 신호를 순수한 휘도 신호로 변조하기 위하여 동기 신호 성분을 제거하는 휘도 전압 공급 회로와, 상기 휘도 전압 공급 회로로부터 입력된 전압의 대소에 따라서 고압에 상응하는 전압을 상기 FBT로부터 출력되는 포커스 출력 전압에 부가하기 위한 포커스 전압 부가 회로로 구성되는 것을 특징으로 한다.The focus voltage stabilization circuit of the present invention comprises an image output circuit for processing and outputting R, G, and B signals to a CRT, and an FBT for supplying a voltage for driving the CRT. A luminance amplifier circuit for amplifying the output luminance signal to a specific level, a luminance voltage supply circuit for removing synchronization signal components to modulate the signal output from the luminance amplifier circuit into a pure luminance signal, and the luminance voltage supply circuit from the luminance amplifier circuit. And a focus voltage adding circuit for adding a voltage corresponding to the high voltage to the focus output voltage output from the FBT according to the magnitude of the input voltage.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제4도는 본 발명에 따른 포커스 전압 안정화 회로의 개략적인 블럭도,4 is a schematic block diagram of a focus voltage stabilization circuit according to the present invention;
제5도는 제3도의 포커스 전압 조정 회로의 일실시예,FIG. 5 is an embodiment of the focus voltage adjusting circuit of FIG.
제6도는 본 발명의 포커스 전압 안정화 회로 사용시 포커스 전압의 변환 상태를 나타내는 그라프이다.6 is a graph showing a conversion state of the focus voltage when the focus voltage stabilization circuit of the present invention is used.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950037654A KR970023501A (en) | 1995-10-27 | 1995-10-27 | TV's CRT focus voltage stabilization circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950037654A KR970023501A (en) | 1995-10-27 | 1995-10-27 | TV's CRT focus voltage stabilization circuit |
Publications (1)
Publication Number | Publication Date |
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KR970023501A true KR970023501A (en) | 1997-05-30 |
Family
ID=66584711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1019950037654A KR970023501A (en) | 1995-10-27 | 1995-10-27 | TV's CRT focus voltage stabilization circuit |
Country Status (1)
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KR (1) | KR970023501A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100588140B1 (en) * | 1999-07-20 | 2006-06-09 | 삼성전자주식회사 | A circuit for stabilizing a focous-voltage in a display system |
-
1995
- 1995-10-27 KR KR1019950037654A patent/KR970023501A/en not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100588140B1 (en) * | 1999-07-20 | 2006-06-09 | 삼성전자주식회사 | A circuit for stabilizing a focous-voltage in a display system |
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WITN | Withdrawal due to no request for examination |