KR960028139A - Power stage protection device in case of load change - Google Patents

Power stage protection device in case of load change Download PDF

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Publication number
KR960028139A
KR960028139A KR1019940039657A KR19940039657A KR960028139A KR 960028139 A KR960028139 A KR 960028139A KR 1019940039657 A KR1019940039657 A KR 1019940039657A KR 19940039657 A KR19940039657 A KR 19940039657A KR 960028139 A KR960028139 A KR 960028139A
Authority
KR
South Korea
Prior art keywords
power
conversion means
power supply
fbt
voltage divider
Prior art date
Application number
KR1019940039657A
Other languages
Korean (ko)
Other versions
KR0132951B1 (en
Inventor
이정우
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 KR94039657A priority Critical patent/KR0132951B1/en
Publication of KR960028139A publication Critical patent/KR960028139A/en
Application granted granted Critical
Publication of KR0132951B1 publication Critical patent/KR0132951B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/63—Generation or supply of power specially adapted for television receivers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/42—Flyback transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Protection Of Static Devices (AREA)
  • Dc-Dc Converters (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

본 발명은 텔레비젼 수상기가 동작하던 중 예기치 못한 원인으로 전원부 후단의 부하가 갑자기 일정로드(LOAD)이하로 떨어지거나 회로 일부가 손상되어 무부하 상태로 되는 경우 전원을 자동으로 차단함으로써 전원장치 내부의 회로를 보호할 수 있도록 된 부하변동시의 전원단 보호장치에 관한 것으로, 전원 플러그로 인가되는 AC 전원을 근거로 소정 전위의 DC 전원을 생성 출력하는 전원 변환수단과 상기 전원 변환수단으로부터 출력되는 소정 DC 전위를 근거로 장치 전반에 동작전원을 공급하는 FBT를 구비한 텔레비젼 수상기의 전원장치에 있어서, 상기 전원변환 수단으로부터 상기 FBT로 인가되는 전류값에 따라 온/오프 스위칭 되는 제1스위칭 수단과, 이 제1스위칭수단의 출력전위를 소정 분압비로 분압하는 저항분압회로, 이 저항 분압회로로부터 출력되는 신호의 레벨에 따라 상기 전원 변환수단으로 인가되는 전원을 단속하는 전원단속수단을 포함하여 구성된 것을 특징으로 한다.The present invention is to cut off the circuit inside the power supply by automatically shutting off the power when the load on the rear end of the power supply suddenly falls below a certain load or the circuit part is damaged due to an unexpected reason while the TV receiver is in operation. The present invention relates to a power supply protection device for protecting loads during load fluctuations, the method comprising: power conversion means for generating and outputting DC power of a predetermined potential based on an AC power applied to a power plug; A power supply apparatus for a television receiver having an FBT for supplying operating power to the apparatus as a whole, comprising: first switching means switched on / off in accordance with a current value applied from the power conversion means to the FBT; A resistance voltage divider circuit for dividing the output potential of the switching means at a predetermined voltage division ratio, and output from the resistance voltage divider circuit. Depending on the level of the signal is characterized in that is configured to include a power regulating unit to regulate the power applied to the power conversion means.

Description

부하 변동시의 전원단 보호장치Power stage protection device in case of load change

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

제2도는 본 발명의 1실시예에 따른 부하변동시의 전원단보호 장치를 나타낸 요부구성도.2 is a main configuration diagram showing a power stage protection device at the time of load fluctuation according to an embodiment of the present invention.

Claims (1)

전원플러그로 인가되는 AC 전원을 근거로 소정 전위의 DC 전원을 생성 출력하는 전원 변환수단과 상기 전원 변환수단으로부터 출력되는 소정 DC 전위를 근거로 장치 전반에 동작전원을 공급하는 FBT를 구비한 텔레비젼 수상기의 전원장치에 있어서, 상기 전원변환 수단으로부터 상기 FBT로 인가되는 전류 값에 따라 온/오프 스위칭 되는 제1스위칭 수단과, 이 제1스위칭수단의 출력전위를 소정 분압비로 분압하는 저항분압회로, 이 저항 분압회로로부터 출력되는 신호의 레벨에 따라 상기 전원 변환수단으로 인가되는 전원을 단속하는 전원단속수단을 포함하여 구성된 것을 특징으로 하는 부하변동시의 전원단 보호장치.A television receiver having power conversion means for generating and outputting DC power at a predetermined potential based on an AC power applied to a power plug, and an FBT for supplying operating power to the entire apparatus based on a predetermined DC potential output from the power conversion means. A power supply apparatus comprising: first switching means switched on / off in accordance with a current value applied from the power conversion means to the FBT, and a resistance voltage divider for dividing an output potential of the first switching means at a predetermined partial pressure ratio; And a power interrupting means for interrupting the power applied to the power converting means according to the level of the signal output from the resistance voltage divider circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR94039657A 1994-12-30 1994-12-30 Apparatus for network protection recovery in sdh dxc KR0132951B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR94039657A KR0132951B1 (en) 1994-12-30 1994-12-30 Apparatus for network protection recovery in sdh dxc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR94039657A KR0132951B1 (en) 1994-12-30 1994-12-30 Apparatus for network protection recovery in sdh dxc

Publications (2)

Publication Number Publication Date
KR960028139A true KR960028139A (en) 1996-07-22
KR0132951B1 KR0132951B1 (en) 1998-04-21

Family

ID=19405719

Family Applications (1)

Application Number Title Priority Date Filing Date
KR94039657A KR0132951B1 (en) 1994-12-30 1994-12-30 Apparatus for network protection recovery in sdh dxc

Country Status (1)

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KR (1) KR0132951B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100469717B1 (en) * 2002-04-30 2005-02-02 삼성전자주식회사 Optoelectronic cross-connects system

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Publication number Publication date
KR0132951B1 (en) 1998-04-21

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