KR920011227A - FBT high voltage stabilization circuit - Google Patents

FBT high voltage stabilization circuit Download PDF

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Publication number
KR920011227A
KR920011227A KR1019900019538A KR900019538A KR920011227A KR 920011227 A KR920011227 A KR 920011227A KR 1019900019538 A KR1019900019538 A KR 1019900019538A KR 900019538 A KR900019538 A KR 900019538A KR 920011227 A KR920011227 A KR 920011227A
Authority
KR
South Korea
Prior art keywords
fbt
stabilization circuit
high voltage
voltage
voltage regulator
Prior art date
Application number
KR1019900019538A
Other languages
Korean (ko)
Other versions
KR930002695B1 (en
Inventor
김원식
Original Assignee
서주인
삼성전기 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.)
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Publication date
Application filed by 서주인, 삼성전기 주식회사 filed Critical 서주인
Priority to KR1019900019538A priority Critical patent/KR930002695B1/en
Publication of KR920011227A publication Critical patent/KR920011227A/en
Application granted granted Critical
Publication of KR930002695B1 publication Critical patent/KR930002695B1/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
    • H04N3/18—Generation of supply voltages, in combination with electron beam deflecting
    • H04N3/185—Maintaining dc voltage constant

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Dc-Dc Converters (AREA)
  • Details Of Television Scanning (AREA)

Abstract

내용 없음No content

Description

FBT의 고전압 안정화 회로FBT high voltage stabilization circuit

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

제3도는 본 발명의 회로구성도, 제4도는 본 발명에 의한 빔전류와 고압출력과의 관계 그래프도.3 is a circuit diagram of the present invention, and FIG. 4 is a graph showing the relationship between the beam current and the high voltage output according to the present invention.

Claims (2)

FBT의 빔전류가 제로일때의 전압을 기준전압으로 하고 FBT의 출력고압 레귤레이션을 검출하는 가변션트 전압 레귤레이터(60)와, 상기 전압 레귤레이터(60)에 FBT의 3차코일(55)을 연결하고 L-C공진에 의해 상기 3차코일(55)의 펄스파를 일정주기 사인파로 변형시키는 주파수 안정화회로(70)와, 상기 주파수 안정화회로(70)의 사인파에 의해 온-오프시간이 조정되는 전계효과 트랜지스터(FET)와, 상기 전계효과 트랜지스터(FET)의 동작시간에 따라 승압되어 FBT의 2차측 스타트부를 직접 콘트롤하는 보정트랜스(80)와로 구성되어 PWM제어에 의해 FBT의 고전압 레귤레이션을 보상하도록 한 것을 특징으로 하는 FBT의 고전압 안정화회로.The voltage when the beam current of the FBT is zero is used as a reference voltage, and a variable shunt voltage regulator 60 that detects the output high voltage regulation of the FBT is connected to the voltage regulator 60, and the FBT tertiary coil 55 is connected to the LC A frequency stabilization circuit 70 for transforming the pulse wave of the tertiary coil 55 into a constant period sine wave by resonance, and a field effect transistor whose on-off time is adjusted by a sine wave of the frequency stabilization circuit 70 ( FET) and a compensation transformer 80 that is boosted according to the operation time of the field effect transistor (FET) to directly control the secondary side start portion of the FBT, and compensates the high voltage regulation of the FBT by PWM control. FBT high voltage stabilization circuit. 제1항에 있어서, 상기 가변션트 전압 레귤레이터(60)의 기준전압(Vref)는 제너다이오드(ZD1), (ZD2)와 가변저항(VR)으로 조절되도록 한것을 특징으로 하는 안정화회로.The stabilization circuit of claim 1, wherein the reference voltage (Vref) of the variable shunt voltage regulator (60) is controlled by zener diodes (ZD 1 ), (ZD 2 ) and variable resistor (VR). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900019538A 1990-11-30 1990-11-30 High voltage stabilization circuit for fbt KR930002695B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900019538A KR930002695B1 (en) 1990-11-30 1990-11-30 High voltage stabilization circuit for fbt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900019538A KR930002695B1 (en) 1990-11-30 1990-11-30 High voltage stabilization circuit for fbt

Publications (2)

Publication Number Publication Date
KR920011227A true KR920011227A (en) 1992-06-27
KR930002695B1 KR930002695B1 (en) 1993-04-07

Family

ID=38659637

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900019538A KR930002695B1 (en) 1990-11-30 1990-11-30 High voltage stabilization circuit for fbt

Country Status (1)

Country Link
KR (1) KR930002695B1 (en)

Also Published As

Publication number Publication date
KR930002695B1 (en) 1993-04-07

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