KR970022919A - Horizontal deflection circuit of multi monitor - Google Patents

Horizontal deflection circuit of multi monitor Download PDF

Info

Publication number
KR970022919A
KR970022919A KR1019950038910A KR19950038910A KR970022919A KR 970022919 A KR970022919 A KR 970022919A KR 1019950038910 A KR1019950038910 A KR 1019950038910A KR 19950038910 A KR19950038910 A KR 19950038910A KR 970022919 A KR970022919 A KR 970022919A
Authority
KR
South Korea
Prior art keywords
horizontal
drive signal
horizontal drive
transistor
current value
Prior art date
Application number
KR1019950038910A
Other languages
Korean (ko)
Other versions
KR0143674B1 (en
Inventor
김대훈
Original Assignee
배순훈
대우전자 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 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019950038910A priority Critical patent/KR0143674B1/en
Publication of KR970022919A publication Critical patent/KR970022919A/en
Application granted granted Critical
Publication of KR0143674B1 publication Critical patent/KR0143674B1/en

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G1/00Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
    • G09G1/04Deflection circuits ; Constructional details not otherwise provided for
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00Aspects of the architecture of display systems
    • G09G2360/04Display device controller operating with a plurality of display units

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Details Of Television Scanning (AREA)

Abstract

본 발명은 멀티 모니터의 수평 편향 회로에 관한 것으로, 수평출력트랜지스터(Q2)의 베이스단으로 인가되는 수평구동신호의 전류값을 일정하게 유지하는 수평구동신호보상부(20)가 추가로 구비되어, 수평주파수 변화에 따라 수평구동신호를 보상함으로써, 수평 구동 조건을 항상 일정하게 유지할 수 있는 것이다.The present invention relates to a horizontal deflection circuit of a multi-monitor, and further includes a horizontal drive signal compensation unit (20) for maintaining a constant current value of the horizontal drive signal applied to the base end of the horizontal output transistor (Q2), By compensating the horizontal drive signal according to the horizontal frequency change, the horizontal driving condition can be kept constant at all times.

Description

멀티 모니터의 수평 편향 회로Horizontal deflection circuit of multi monitor

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명에 따른 멀티 모니터의 수평 편향 회로의 회로도이다.2 is a circuit diagram of a horizontal deflection circuit of a multi-monitor according to the present invention.

Claims (4)

수평주파수에 의해 온/오프동작을 수행하는 수평구동트랜지스터(Q1)와, 상기 수평구동트랜지스터(Q1)의 온/오프 동작에 의해 수평구동신호를 출력하는 수평구동트랜스포머(10) 및, 상기 수평구동신호에 따라 온/오프되어 수평편향코일(H.YL)에 수평 톱니파를 발생시켜주는 수평출력트랜지스터(Q2)를 포함하여 구성된 멀티 모니터의 수평 편향 회로에 있어서, 상기 수평출력트랜지스터(Q2)의 베이스단으로 인가되는 수평구동신호의 전류값을 일정하게 유지하는 수평구동신호보상부(20)가 추가로 구비된 것을 특징으로 하는 멀티 모니터의 수평 편향 회로.A horizontal drive transistor Q1 performing an on / off operation by a horizontal frequency; a horizontal drive transformer 10 outputting a horizontal drive signal by an on / off operation of the horizontal drive transistor Q1; and the horizontal drive In the horizontal deflection circuit of a multi-monitor comprising a horizontal output transistor (Q2) to turn on / off according to the signal to generate a horizontal sawtooth wave in the horizontal deflection coil (H.YL), the base of the horizontal output transistor (Q2) The horizontal deflection circuit of the multi-monitor characterized in that it further comprises a horizontal drive signal compensation unit 20 for maintaining a constant current value of the horizontal drive signal applied to the stage. 제1항에 있어서, 상기 수평구동신호보상부(20)는, 상기 수평주파수 값을 감지하는 감지부(22)와, 상기 감지부(22)에서 감지된 수평주파수 값이 크면 상기 수평출력트랜지스터(Q2)의 베이스단에 인가되는 수평구동신호의 전류값을 감소시키고, 상기 수평주파수 값이 작으면 상기 수평구동신호의 전류값을 증가시키는 수평구동신호제어부(24)를 포함하여 구성된 것을 특징으로 하는 멀티 모니터의 수평 편향 회로.According to claim 1, wherein the horizontal drive signal compensation unit 20, The detection unit 22 for detecting the horizontal frequency value, If the horizontal frequency value detected by the detection unit 22 is the horizontal output transistor ( And a horizontal drive signal controller 24 which reduces the current value of the horizontal drive signal applied to the base end of Q2) and increases the current value of the horizontal drive signal when the horizontal frequency value is small. Horizontal deflection circuit in multi monitors. 제2항에 있어서, 상기 감지부(22)는, 상기 수평구동트랜지스터(Q1)의 드레인단에 연결된 캐패시터(C1)를 통해 상기 수평구동트랜스포머(10)의 1차측 코일에 흐르는 전류를 베이스만으로 입력받아 상기 전류값에 따라 컬렉터 전류를 증감시키는 PNP형 트랜지스터(Q3)를 포함하여 구성된 것을 특징으로 하는 멀티 모니터의 수평 편향 회로.3. The sensor of claim 2, wherein the sensing unit 22 inputs current flowing through the primary coil of the horizontal driving transformer 10 through the capacitor C1 connected to the drain terminal of the horizontal driving transistor Q1 using only the base. And a PNP transistor (Q3) configured to receive and increase and decrease collector current according to the current value. 제2항에 있어서, 상기 수평구동신호제어부(24)는 상기 PNP형 트랜지스터(Q3)의 컬렉터 전류를 베이스단으로 입력받음과 더불어 컬렉터단이 상기 수평 출력 트랜지스터(Q2)의 베이스단에 연결되어, 상기 PNP형 트랜지스터(Q3)의 컬렉터 전류가 증가하면 상기 수평출력트랜지스터(Q2)에 인가되는 수평구동신호의 전류값을 감소시키고, 상기 PNP형 트랜지스터(Q3)의 컬렉터 전류가 감소하면 상기 수평출력트랜지스터(Q2)로 인가되는 수평구동신호의 전류값을 증가시키는 NPN형 트랜지스터(Q4)를 포함하여 구성된 것을 특징으로 하는 멀티 모니터의 수평 편향 회로.According to claim 2, The horizontal drive signal control unit 24 receives the collector current of the PNP-type transistor (Q3) to the base terminal, the collector terminal is connected to the base terminal of the horizontal output transistor (Q2), When the collector current of the PNP transistor Q3 is increased, the current value of the horizontal drive signal applied to the horizontal output transistor Q2 is decreased. When the collector current of the PNP transistor Q3 is decreased, the horizontal output transistor is decreased. And a NPN transistor (Q4) for increasing the current value of the horizontal drive signal applied to (Q2). ※ 참고사항; 최초출원 내용에 의하여 공개하는 것임.※ Note; Disclosure based on original application.
KR1019950038910A 1995-10-31 1995-10-31 A horizontal deflection circuit of multi monitor KR0143674B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950038910A KR0143674B1 (en) 1995-10-31 1995-10-31 A horizontal deflection circuit of multi monitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950038910A KR0143674B1 (en) 1995-10-31 1995-10-31 A horizontal deflection circuit of multi monitor

Publications (2)

Publication Number Publication Date
KR970022919A true KR970022919A (en) 1997-05-30
KR0143674B1 KR0143674B1 (en) 1998-08-17

Family

ID=19432458

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950038910A KR0143674B1 (en) 1995-10-31 1995-10-31 A horizontal deflection circuit of multi monitor

Country Status (1)

Country Link
KR (1) KR0143674B1 (en)

Also Published As

Publication number Publication date
KR0143674B1 (en) 1998-08-17

Similar Documents

Publication Publication Date Title
US5078476A (en) Automatic backlight on/off control apparatus for liquid crystal display television
KR950022869A (en) Method of stabilizing the screen state of a video display device having a picture-in-picture function and its device
KR950015226A (en) Second harmonic generation method and device
JP3135283B2 (en) Signal processing circuit device for absolute value detection
KR970022919A (en) Horizontal deflection circuit of multi monitor
KR860002197A (en) Automatic tube bias system
KR970009279A (en) Halftone OSD Text Brightness Control Device
KR970050022A (en) Screen Zoom Control Circuit
KR840006739A (en) Auto Bias Adjuster
KR100206141B1 (en) A load detector for decreasing power-loss
KR100198285B1 (en) Non-signal's r.g.b signal acting circuit
KR0176137B1 (en) Horizontal siza automatic conversion circuit in display apparatus
KR0136691B1 (en) Back level compensation circuit of a monitor
KR960016417A (en) TV's video generator
KR970019692A (en) Element control method of television
KR960028403A (en) Horizontal Size Control Circuit of Video Display Device
JP3454642B2 (en) Signal selection output circuit
KR20010054367A (en) Compensating circuit of a size regulation circuit in a monitor
KR860002198A (en) Image tube bias detection circuit
JPH04284417A (en) Display circuit
KR960006255A (en) Automatic Gain Control Circuit
KR970022914A (en) Horizontal / Vertical Size Compensation Circuit for Monitors
KR960028200A (en) Video signal amplifier with amplitude limit function
KR970031197A (en) Power factor correction circuit for boost converter with output voltage compensation
JPH04225683A (en) Horizontal deflection circuit

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20020329

Year of fee payment: 5

LAPS Lapse due to unpaid annual fee