KR960028244A - Vertical Sizing Circuit of Monitor - Google Patents

Vertical Sizing Circuit of Monitor Download PDF

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Publication number
KR960028244A
KR960028244A KR1019940037163A KR19940037163A KR960028244A KR 960028244 A KR960028244 A KR 960028244A KR 1019940037163 A KR1019940037163 A KR 1019940037163A KR 19940037163 A KR19940037163 A KR 19940037163A KR 960028244 A KR960028244 A KR 960028244A
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KR
South Korea
Prior art keywords
voltage
resistor
output
vertical size
pulse width
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Application number
KR1019940037163A
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Korean (ko)
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KR0136360B1 (en
Inventor
박태길
Original Assignee
배순훈
대우전자 주식회사
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Priority to KR1019940037163A priority Critical patent/KR0136360B1/en
Publication of KR960028244A publication Critical patent/KR960028244A/en
Application granted granted Critical
Publication of KR0136360B1 publication Critical patent/KR0136360B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
    • H04N3/223—Controlling dimensions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof  ; Multistep manufacturing processes therefor
    • H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/86—Types of semiconductor device ; Multistep manufacturing processes therefor controllable only by variation of the electric current supplied, or only the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched
    • H01L29/861—Diodes
    • H01L29/866—Zener diodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/18—Generation of supply voltages, in combination with electron beam deflecting
    • H04N3/185—Maintaining dc voltage constant

Abstract

본 발명은 모니터에 관한 것으로서, 특히 입력되는 수직 주파수에 따라 가변되는 수직 사이즈 조정 회로의 구성을 간편하게 설계함으로써, 원가 절감이 가능하고, 안정되게 동작되는 수직 사이즈 조정 회로에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitor, and more particularly, to a vertical size adjustment circuit which can reduce costs and operate stably by simply designing a configuration of a vertical size adjustment circuit that varies according to the input vertical frequency.

이와 같은 본 발명은 입력되는 수직 주파수가 전압으로 변환되어 펄스 폭 변조 신호가 출력되는 주파수/전압 변환기와, 주파수/전압 변환기에서 출력되는 펄스 폭 변조 신호가 증폭되는 증폭부와, 상기 증폭부에서 출력되는 신호에 의해 수직 사이즈가 조정되는 수직 사이즈 조정부로 구성된 모니터의 수직 사이즈 조정 회로에 있어서, 상기 증폭부가 입력되는 펄스 폭 변조 신호가 정형되어 직류 전압으로 변환되는 전압 변환수단과, 입력되는 펄스 폭 변조 신호가 없는 경우 직류 전원이 발생되는 전압 발생 수단과, 상기 전압 변환 수단 또는 전압 발생 수단에서 출력되는 직류 전압에 의해 스위칭되어 수직 사이즈 조정부의 전위를 조정하는 제어 수단으로 구성된다.As described above, the present invention provides a frequency / voltage converter for converting an input vertical frequency into a voltage and outputting a pulse width modulated signal, an amplifier for amplifying a pulse width modulated signal output from a frequency / voltage converter, and an output from the amplifier. A vertical size adjusting circuit of a monitor comprising a vertical size adjusting unit whose vertical size is adjusted by a signal to be input, comprising: voltage converting means for shaping a pulse width modulation signal inputted by the amplifying unit and converting the signal into a DC voltage; In the absence of a signal, it comprises a voltage generating means for generating a direct current power source and a control means for adjusting the potential of the vertical size adjusting part by switching by the voltage converting means or the direct current voltage output from the voltage generating means.

Description

모니터의 수직 사이즈 조정 회로Vertical Sizing Circuit of Monitor

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

제1도는 일반적인 모니터의 수직 사이즈 조정 회로의 구성을 보인 도면, 제2도는 본 발명에 따른 모니터의 수직 사이즈 조정 회로의 구성을 보인 도면.1 is a view showing the configuration of a vertical size adjustment circuit of a general monitor, Figure 2 is a view showing the configuration of a vertical size adjustment circuit of a monitor according to the present invention.

Claims (4)

입력되는 수직 주파수가 전압으로 변환되어 펄스 폭 변조 신호가 출력되는 주파수/전압 변환기와, 주파수/전압 변환기에서 출력되는 펄스 폭변조 신호가 증폭되는 증폭부와, 상기 증폭부에서 출력되는 신호에 의해 수직 사이즈가 조정되는 수직 사이즈 조정부로 구성된 모니터의 수직 사이즈 조정 회로에 있어서, 상기 증폭부가 입력되는 펄스 폭 변조 신호가 정형되어 직류 전압으로 변환되는 전압 변환 수단과, 입력되는 펄스 폭 변조 신호가 없는 경우 직류 전원이 발생되는 전압발생 수단과, 상기 전압 변환 수단 또는 전압 발생 수단에서 출력되는 직류 전압에 의해 스위칭되어 수직 사이즈 조정부의 전위를 조정하는 제어 수단으로 구성됨을 특징으로 하는 수직 사이즈 조정 회로.A frequency / voltage converter for converting the input vertical frequency into a voltage and outputting a pulse width modulation signal, an amplifier for amplifying the pulse width modulation signal output from the frequency / voltage converter, and a signal output from the amplifier. A vertical size adjusting circuit of a monitor comprising a vertical size adjusting unit for adjusting a size, comprising: voltage converting means for shaping a pulse width modulation signal inputted by the amplifying unit and converting the signal into a DC voltage; And a voltage generator for generating power, and a control means for controlling the potential of the vertical size adjusting unit by switching by the voltage converting means or the DC voltage output from the voltage generator. 제1항에 있어서, 상기 전압 변환 수단은 입력되는 전원(Vcc)가 바이패스되는 저항(R11)과, 상기 저항(R11)에서 출력되는 직류 성분과 펄스 폭 변조 신호(PWM)가 중첩된 후 정형되는 저항(R12) 및 콘덴서(C11)와, 상기 저항(R12) 및 콘덴서(C11)의 출력 전압을 분배시켜 안정된 직류전압을 출력시키는 저항(R13)(14)로 구성됨을 특징으로 하는 모니터의 수직 사이즈 조정 회로.The voltage converting means of claim 1, wherein the voltage converting means is formed after a resistor R11 through which the input power Vcc is bypassed, a DC component output from the resistor R11, and a pulse width modulation signal PWM are superimposed. The resistor R12 and the capacitor C11, and the resistor R13 and 14 for distributing the output voltages of the resistor R12 and the capacitor C11 to output a stable DC voltage. Resizing circuit. 제2항에 있어서, 상기 전압 발생 수단은 입력되는 펄스 폭 변조 신호(PWM)가 없는 경우 입력되는 전원(Vcc)가 바이패스되는 저항(R12)과, 상기 저항(R21)에서 출력되는 직류 전압을 설정된 전압으로 출력시키는 제너 다이오드(ZD21)로 구성됨을 특징으로 하는 모니터의 수직 사이즈 조정 회로.The voltage generator of claim 2, wherein the voltage generating means comprises a resistor R12 through which the input power Vcc is bypassed and a DC voltage output from the resistor R21 when no pulse width modulation signal PWM is input. And a zener diode (ZD21) for outputting at a set voltage. 제3항에 있어서, 상기 제어 수단은 상기 전압 변환 수단 또는 전압 발생 수단에서 출력되는 직류 전압에 의해 스위칭되는 트랜지스터(Q31)와, 상기 트랜시트(Q31)의 전류를 제어하는 저항(r31)과, 상기 트랜지스터(Q31)의 스위칭에 의해 제어되는 수직 사이즈 조정부의 가변 저항의 전위를 평활시키는 콘덴서(C31)로 구성됨을 특징으로 하는 모니터의 수직 사이즈 조정 회로.4. The control device according to claim 3, wherein the control means comprises: a transistor (Q31) switched by a direct current voltage output from the voltage conversion means or a voltage generating means, a resistor (r31) for controlling a current of the transistor (Q31), And a capacitor (C31) for smoothing the potential of the variable resistor of the vertical size adjusting section controlled by switching of the transistor (Q31). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940037163A 1994-12-27 1994-12-27 Vertical size controlling circuit of a monitor KR0136360B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940037163A KR0136360B1 (en) 1994-12-27 1994-12-27 Vertical size controlling circuit of a monitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940037163A KR0136360B1 (en) 1994-12-27 1994-12-27 Vertical size controlling circuit of a monitor

Publications (2)

Publication Number Publication Date
KR960028244A true KR960028244A (en) 1996-07-22
KR0136360B1 KR0136360B1 (en) 1998-04-27

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Application Number Title Priority Date Filing Date
KR1019940037163A KR0136360B1 (en) 1994-12-27 1994-12-27 Vertical size controlling circuit of a monitor

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Publication number Publication date
KR0136360B1 (en) 1998-04-27

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