KR830002416A - Overcurrent protection device - Google Patents

Overcurrent protection device Download PDF

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Publication number
KR830002416A
KR830002416A KR1019800000083A KR800000083A KR830002416A KR 830002416 A KR830002416 A KR 830002416A KR 1019800000083 A KR1019800000083 A KR 1019800000083A KR 800000083 A KR800000083 A KR 800000083A KR 830002416 A KR830002416 A KR 830002416A
Authority
KR
South Korea
Prior art keywords
protection device
overcurrent protection
storage means
switching element
control
Prior art date
Application number
KR1019800000083A
Other languages
Korean (ko)
Other versions
KR830001286B1 (en
Inventor
토오지 이마제끼
마사유끼 핫도리
시게오 나까무라
Original Assignee
이나바 세이우에몽
후지쓰후 아낙크 가부시끼 가이샤
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 이나바 세이우에몽, 후지쓰후 아낙크 가부시끼 가이샤 filed Critical 이나바 세이우에몽
Priority to KR1019800000083A priority Critical patent/KR830001286B1/en
Publication of KR830002416A publication Critical patent/KR830002416A/en
Application granted granted Critical
Publication of KR830001286B1 publication Critical patent/KR830001286B1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/20—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for electronic equipment

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

내용 없음No content

Description

과전류 보호장치Overcurrent protection device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this content is publicly disclosed, the full text is not included.

제 2도는 본 발명에 따른 과전류 보호장치의 블록선도.2 is a block diagram of an overcurrent protection device according to the present invention.

제 4도는 본 발명의 다른 실시예를 서술하는 선도.4 is a diagram describing another embodiment of the present invention.

제 5도는 본 발명이 적용된 다른 스위칭 전원의 블록선도.5 is a block diagram of another switching power source to which the present invention is applied.

Claims (4)

변압기의 1차 전류를 중단하기 위한 파워스위칭 요소와 변압기의 2차 측상의 정류된 출력전압의 변화에 따라 펄스폭이 변조된 제어펄스를 발생하기 위한 제어회로를 포함하며, 파워스위치이 요소의 스위칭이 정류된 출력전압을 일정치로 유지하기 위해 제어펄스에 의해 제어되는 형식의 스위칭 전원장치의 과전류 보호장치에 있어서, 파워스위칭 요소내로 유입하는 전류가 규정치를 초과한 것을 검출한 후 과전류 검출신호를 방출하기 위한 과전류검출수단, 과전류신호에 의해 세트되는 기억수단, 상기 기억수단이 세트되었을때 제어펄스를 블로킹함으로써 파원스위칭 요소를 오프하기 위한 케이트회로 및 제어펄스의 후단부에 응답하여 상기 기억수단을 리세트하기 위한 리세트수단으로 구성되며, 파워스위칭 요소가 상기 기억수단이 세트되었을때 오프되며, 상기 기억수단이 리세트되었을 때 제어펄수에 따른 스위칭 제어를 받게 되는 과전류 보호장치.It includes a power switching element for stopping the primary current of the transformer and a control circuit for generating a control pulse whose pulse width is modulated according to the change in the rectified output voltage on the secondary side of the transformer. In the overcurrent protection device of a switching power supply of a type controlled by a control pulse to maintain a rectified output voltage at a constant value, an overcurrent detection signal is emitted after detecting that the current flowing into the power switching element exceeds a specified value The overcurrent detection means for storing, the storage means set by the overcurrent signal, the Kate circuit for turning off the wave switching element by blocking the control pulse when the storage means is set, and the storage means in response to the rear end of the control pulse. An overcurrent protection device comprising reset means for setting, the power switching element being turned off when the storage means is set, and subject to switching control according to the number of control pulses when the storage means is reset. 상기 리세트수단이 적분회로로 구성되어 있는 특허청구 범위 1항에 따른 과전류 보호장치.The overcurrent protection device according to claim 1, wherein the reset means comprises an integral circuit. 파워스위칭 요소가 오프인 기간이 파워스위치이 요소가 은인 기간보다 긴 특허청구의 범위 1항에 따른 과전류 보호장치.An overcurrent protection device according to claim 1 in which the period in which the power switching element is off is longer than the period in which the power switch is in the element. 파워 스위치이 요소에 각기 다른 제어펄스가 공급되는 특허청구의 범위 3항에 따른 과전류 보호장치.Overcurrent protection device according to claim 3 in which the power switch is supplied with different control pulses to the element. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: Disclosure is based on the original application.
KR1019800000083A 1980-01-10 1980-01-10 Over Current Protection Device KR830001286B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019800000083A KR830001286B1 (en) 1980-01-10 1980-01-10 Over Current Protection Device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019800000083A KR830001286B1 (en) 1980-01-10 1980-01-10 Over Current Protection Device

Publications (2)

Publication Number Publication Date
KR830002416A true KR830002416A (en) 1983-05-28
KR830001286B1 KR830001286B1 (en) 1983-07-01

Family

ID=19215170

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019800000083A KR830001286B1 (en) 1980-01-10 1980-01-10 Over Current Protection Device

Country Status (1)

Country Link
KR (1) KR830001286B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100593761B1 (en) * 1999-02-09 2006-06-26 페어차일드코리아반도체 주식회사 System protection circuit of smps
KR100887481B1 (en) * 2006-01-16 2009-03-10 산켄덴키 가부시키가이샤 Resonant switching power source apparatus and method of controlling the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100593761B1 (en) * 1999-02-09 2006-06-26 페어차일드코리아반도체 주식회사 System protection circuit of smps
KR100887481B1 (en) * 2006-01-16 2009-03-10 산켄덴키 가부시키가이샤 Resonant switching power source apparatus and method of controlling the same

Also Published As

Publication number Publication date
KR830001286B1 (en) 1983-07-01

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