KR930010675A - Vertical size control circuit - Google Patents

Vertical size control circuit Download PDF

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Publication number
KR930010675A
KR930010675A KR1019910021893A KR910021893A KR930010675A KR 930010675 A KR930010675 A KR 930010675A KR 1019910021893 A KR1019910021893 A KR 1019910021893A KR 910021893 A KR910021893 A KR 910021893A KR 930010675 A KR930010675 A KR 930010675A
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KR
South Korea
Prior art keywords
stage
vertical
output
reference voltage
vertical size
Prior art date
Application number
KR1019910021893A
Other languages
Korean (ko)
Inventor
성일경
Original Assignee
정용문
삼성전자 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 정용문, 삼성전자 주식회사 filed Critical 정용문
Priority to KR1019910021893A priority Critical patent/KR930010675A/en
Publication of KR930010675A publication Critical patent/KR930010675A/en

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Abstract

이 발명은 멀티모드의 수직주파수에 대하여 자동으로 수직사이즈가 콘트롤되어 수직주파수의 모드에 무관하게 항상 일정한 수직사이즈를 유지하도록 된 것으로서, 수직주파수를 F/V 콘버터에 의해 전압레벨로 변환시켜 이 변환된 값과 일정레벨의 기준전압을 비교하여서 수직 IC의 수직사이즈 조정단에 콘트롤 데이타를 제공하여 램프발진기 바이어스를 조정하게 하였다.In the present invention, the vertical size is automatically controlled with respect to the multi-frequency vertical frequency to maintain a constant vertical size regardless of the vertical frequency mode. The vertical frequency is converted into a voltage level by an F / V converter. The measured value is compared with the reference voltage at a constant level, and the control data is provided to the vertical size adjustment stage of the vertical IC to adjust the ramp oscillator bias.

Description

수직사이즈 콘트롤회로Vertical size control circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 이 발명에 따른 수직사이즈 콘트롤회로도.2 is a vertical size control circuit diagram according to the present invention.

제3도는 제2도의 일실시예를 나타낸 상세회로 구성도.3 is a detailed circuit diagram showing an embodiment of FIG.

제4도의 (a), (b)는 전압 특성도로서, (a)는 F/V 출력전압 특성도이고, (b)는 차동증폭기의 출력전압 특성도이다.(A) and (b) of FIG. 4 are voltage characteristic diagrams, (a) is an F / V output voltage characteristic diagram, and (b) is an output voltage characteristic diagram of a differential amplifier.

Claims (2)

비교기준전압을 제공하는 기준전압 설정단(10)과, 수직사이즈를 수동으로 조정하도록된 수동조정단(20)과, 수직주파수를 전압으로 변환시키는 F/V 콘버터(30)와, 상기 수동조정단(20)의 출력과 F/V 콘버터(30)의 출력을 비교입력으로 제공받아 상기 기준전압 설정단(10)에서 제공되는 기준전압과 비교하여 증폭하는 차동증폭기(40)와, 이 차동증폭기(40)의 출력을 입력으로 제공받아 수직 IC(IC1)의 램프 발진기 바이어스를 변화시키는 램프바이어스 조정단(50)과, 수직 IC(IC1)의 수직출력을 상기 차동증폭기(40)의 비교입력측으로 궤환시키기 위한 수직출력 궤환단(60)과, 로 된 수직사이즈 콘트롤회로.A reference voltage setting stage 10 for providing a comparative reference voltage, a manual adjustment stage 20 for manually adjusting the vertical size, an F / V converter 30 for converting a vertical frequency into a voltage, and the manual adjustment A differential amplifier 40 which receives the output of the stage 20 and the output of the F / V converter 30 as a comparison input and amplifies the amplifier by comparing with the reference voltage provided from the reference voltage setting stage 10; A ramp bias adjustment stage 50 for receiving the output of the 40 as an input to change the ramp oscillator bias of the vertical IC IC1 and a vertical output of the vertical IC IC1 to the comparison input side of the differential amplifier 40. A vertical output feedback stage 60 for feeding back and a vertical size control circuit. 제1항에 있어서, 상기 기준전압 설정단(10)은 전원을 일정레벨로 분압시키기 위한 저항(R1), (R2)과 콘덴서(C1)로 되고, 수동조정단(20)은 B+ 전압을 분압가변시키는 가변저항(VR1)으로 되며, 차동증폭기(40)는 상기저항(R1), (R2)에서 분압된 전압을 비반전단에 제공받으며 상기 가변저항(VR1)에 의해 조정된 전압과 F/V콘버터(30)의 출력전압을 반전단에 제공받는 비교기(U1)로 되고, 램프바이어스 조정단(50)은 상기 비교기(U1)의 출력을 베어스에 제공받아 비교기(U1)의 출력레벨에 따라 수직 IC(IC1)의 수직사이즈 조정단(VS)에 제공하는 전류량이 조정되는 트랜지스터(Q1)로 된 것을 특징으로 하는 수직사이즈 콘트롤회로.2. The reference voltage setting stage (10) according to claim 1, wherein the reference voltage setting stage (10) comprises resistors (R1), (R2), and capacitor (C1) for dividing the power to a constant level, and the manual adjustment stage (20) divides the voltage B +. The variable amplifier VR1 is variable, and the differential amplifier 40 receives the voltage divided by the resistors R1 and R2 at the non-inverting stage and adjusts the voltage and the F / V adjusted by the variable resistor VR1. The output voltage of the converter 30 is provided to the comparator U1, and the ramp bias adjustment stage 50 is provided with the output of the comparator U1 to the bears and is perpendicular to the output level of the comparator U1. A vertical size control circuit comprising a transistor (Q1) in which the amount of current supplied to the vertical size adjusting stage (VS) of the IC (IC1) is adjusted. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910021893A 1991-11-30 1991-11-30 Vertical size control circuit KR930010675A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910021893A KR930010675A (en) 1991-11-30 1991-11-30 Vertical size control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910021893A KR930010675A (en) 1991-11-30 1991-11-30 Vertical size control circuit

Publications (1)

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KR930010675A true KR930010675A (en) 1993-06-23

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Application Number Title Priority Date Filing Date
KR1019910021893A KR930010675A (en) 1991-11-30 1991-11-30 Vertical size control circuit

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100904112B1 (en) * 2001-11-15 2009-06-24 세이코 인스트루 가부시키가이샤 Voltage regulator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100904112B1 (en) * 2001-11-15 2009-06-24 세이코 인스트루 가부시키가이샤 Voltage regulator

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