KR960028357A - Power Stabilization Circuit Using Photo Coupler - Google Patents

Power Stabilization Circuit Using Photo Coupler Download PDF

Info

Publication number
KR960028357A
KR960028357A KR1019940040256A KR19940040256A KR960028357A KR 960028357 A KR960028357 A KR 960028357A KR 1019940040256 A KR1019940040256 A KR 1019940040256A KR 19940040256 A KR19940040256 A KR 19940040256A KR 960028357 A KR960028357 A KR 960028357A
Authority
KR
South Korea
Prior art keywords
power
stabilization circuit
photo coupler
power stabilization
power supply
Prior art date
Application number
KR1019940040256A
Other languages
Korean (ko)
Inventor
김천호
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 KR1019940040256A priority Critical patent/KR960028357A/en
Publication of KR960028357A publication Critical patent/KR960028357A/en

Links

Landscapes

  • Dc-Dc Converters (AREA)

Abstract

본 발명은 모니터의 전원 회로에 관한 것으로, 특히 트랜스 2차측의 전류를 센싱하여 센싱한 전류를 다시 트랜스의 1차측으로 피이드시켜 트랜지스터의 턴 온/오프 시간을 자동 제어해 주므로써 전원을 안정화 시켜 TR 및 IC를 보호해줄 수 있도록 파워 트랜지스터의 턴 온/오프 시간을 자동제어하여 전원을 안정화 시키는 전원 안정화 회로부를 구성한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply circuit of a monitor. In particular, the power supply is stabilized by automatically controlling the turn on / off time of a transistor by sensing the current on the secondary side of the transformer and feeding the sensed current back to the primary side of the transformer. And a power stabilization circuit that automatically stabilizes the power supply by controlling the turn-on / off time of the power transistor to protect the IC.

Description

포토 커플러를 이용한 전원 안정화 회로Power Stabilization Circuit Using Photo Coupler

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

제2도는 본 발명인 포토 커플러를 이용한 전원 안정화 회로도. 제3도는 본 발명에서 설명하기 위한 트랜지스터의 온/오프 시간 파형도.2 is a power supply stabilization circuit diagram using the photocoupler of the present invention. 3 is an on / off time waveform diagram of a transistor for explaining the present invention.

Claims (3)

파워 하이브리드 IC(IC1)와 에어암프 IC(IC2) 사이에 파워 트랜지스터(TR5)의 턴 온/오프 시간을 자동 제어하여 전원을 안정화 시키는 전원 안정화 회로부(10)를 연결하여 구성함을 특징으로 하는 포토 커플러를 이용한 전원 안정화 회로.A power stabilization circuit unit 10 for stabilizing power by automatically controlling the turn on / off time of the power transistor TR 5 between the power hybrid IC IC 1 and the air amp IC IC 2 . Power stabilization circuit using a photo coupler. 제1항에 있어서, 상기 전원을 안정화 시키는 전원 안정화 회로부(10)는 트랜스(T1)와 포토 커플러, 다이오드(D1)(D2)와 저항(R1)(R2)(R3) 및 콘덴서(C1)(C2)로 구성됨을 특징으로 하는 포토 커플러를 이용한 전원 안정화 회로.The power stabilization circuit unit 10 for stabilizing the power supply includes a transformer T 1 , a photo coupler, a diode D 1 , D 2 , and a resistor R 1 , R 2 , R 3 . And a capacitor (C 1 ) (C 2 ). 제1항에 있어서, 상기 포토 커플러는 발광소자(LED)와 수광소자(TR)로 구성됨을 특징으로 하는 포토 커플러를 이용한 전원 안정화 회로.The power stabilization circuit of claim 1, wherein the photo coupler comprises a light emitting element (LED) and a light receiving element (TR). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940040256A 1994-12-31 1994-12-31 Power Stabilization Circuit Using Photo Coupler KR960028357A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940040256A KR960028357A (en) 1994-12-31 1994-12-31 Power Stabilization Circuit Using Photo Coupler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940040256A KR960028357A (en) 1994-12-31 1994-12-31 Power Stabilization Circuit Using Photo Coupler

Publications (1)

Publication Number Publication Date
KR960028357A true KR960028357A (en) 1996-07-22

Family

ID=66648084

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940040256A KR960028357A (en) 1994-12-31 1994-12-31 Power Stabilization Circuit Using Photo Coupler

Country Status (1)

Country Link
KR (1) KR960028357A (en)

Similar Documents

Publication Publication Date Title
KR880701034A (en) Switching regulator
WO1998049765A3 (en) Overvoltage protection circuit for smps based on demagnetization signal
SG89790G (en) Self-oscillating power-supply circuit
ES2066835T3 (en) CURRENT CONTROLLER OF THE LOOP OF A TELEPHONE LINE.
DE3779606D1 (en) Overload protection circuit for DC supplied device
KR910020445A (en) Over Current Detection Device
KR960028357A (en) Power Stabilization Circuit Using Photo Coupler
US4196320A (en) Method and means for powering telephone span lines
WO1991015053A3 (en) Electronic switch supply unit
ES2072149T3 (en) ELECTRONIC POWER SUPPLY BLOCK.
DE69805188T2 (en) VOLTAGE CONTROL CIRCUIT FOR SUPPRESSING THE LATCH-UP PHENOMENON
US6119238A (en) Apparatus for generating a power off/on signal
KR960027204A (en) Power supply protection circuit
KR100191893B1 (en) Limit voltage circuit by feedback
KR960024782A (en) Constant Voltage Detection Circuit of Power Supply
KR970028931A (en) Power supply circuit to stabilize output voltage
JPS5636228A (en) Photo coupling element
KR970022719A (en) Monitor's flyback transformer protection circuit
SE9701152D0 (en) Controlling device
KR970022710A (en) Monitor power circuit
KR940027273A (en) High voltage power supply
JPS6434888U (en)
JPH01308164A (en) Overcurrent protective circuit for switching regulator
JPH02129184U (en)
KR960036258A (en) Starting Voltage Transmission Circuit in Switched-Mode Power Supplies

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application