KR950034957A - Inrush Current Protection Circuit of Power Supply - Google Patents

Inrush Current Protection Circuit of Power Supply Download PDF

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Publication number
KR950034957A
KR950034957A KR1019940011886A KR19940011886A KR950034957A KR 950034957 A KR950034957 A KR 950034957A KR 1019940011886 A KR1019940011886 A KR 1019940011886A KR 19940011886 A KR19940011886 A KR 19940011886A KR 950034957 A KR950034957 A KR 950034957A
Authority
KR
South Korea
Prior art keywords
inrush current
voltage
full
power supply
power
Prior art date
Application number
KR1019940011886A
Other languages
Korean (ko)
Inventor
문명진
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 KR1019940011886A priority Critical patent/KR950034957A/en
Publication of KR950034957A publication Critical patent/KR950034957A/en

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Abstract

본 발명은 전원 공급 장치에 관한 것으로서, 특히 순간적인 정전 또는 전원차단에 의해 전원의 공급이 중단된 후 전원이 다시 투입될때 발생하는 돌입 전류의 입력을 차단시킬 수 있는 전원 공급 장치의 돌입 전류 방지 회로에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply device, and in particular, an inrush current prevention circuit of a power supply device capable of interrupting the input of inrush current generated when the power is turned on again after the supply of power is stopped due to a momentary power failure or a power interruption. It is about.

이와같은 본 발명은 전파 정류된 전압의 콘덴서 충전이 완료되기 이전까지 입력되는 고피크의 돌입 전류를 저항에 의해 제한시키고, 콘덴서의 충전이 완료된 후에는 SCR에 의해 돌입 전류가 제한되는 전원 공급 장치의 돌입 전류 방지 회로에 있어서, 상기 입력되는 교류 전원을 전파 정류시키는 전파 정류 수단과, 상기 전파 정류 수단에서 출력되는 전압을 분배시키는 수단과, 상기 분배 수단에 의해 분배된 전압에 의해 스위칭되어 상기 콘덴서에 충전된 전압을 강제로 방전시키는 SCR 제어수단이 포함된다.The present invention is to limit the inrush current of the high peak input until the capacitor charging of the full-wave rectified voltage is completed by the resistance, and the inrush current is limited by the SCR after the charging of the capacitor is completed. An inrush current preventing circuit comprising: full-wave rectifying means for full-wave rectifying the input AC power, means for distributing a voltage output from the full-wave rectifying means, and a voltage distributed by the distributing means to switch to the condenser SCR control means for forcibly discharging the charged voltage is included.

Description

전원 공급 장치의 돌입 전류 방지 회로Inrush Current Protection Circuit of Power Supply

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

제2도는 본 발명에 따른 전원 공급 장치의 돌입 전류 방지 회로의 구성을 보인 도면.2 is a view showing the configuration of an inrush current prevention circuit of the power supply according to the present invention.

Claims (2)

전파 정류된 전압의 콘덴서 충전이 완료되기 이전까지 입력되는 고피크의 돌입 전류를 저항에 의해 제한시키고, 콘덴서의 충전이 완료된 후에는 SCR에 의해 돌입 전류가 제한되는 전원 공급 장치의 돌입 전류방지 회로에 있어서, 상기 입력되는 교류 전원을 전파 정류시키는 전파 정류 수단과, 상기 전파 정류 수단에서 출력되는 전압을 분배시키는 전압 분배 수단과, 상기 분배 수단에 의해 분배된 전압에 의해 스위칭되어 상기 콘덴서에 충전된 전압을 강제로 방전시키는 SCR 제어수단이 포함됨을 특징으로 하는 전원 공급장치의 돌입 전류 방지 회로.Inrush current prevention circuit of the power supply which limits the inrush current of high peak input by the resistor until the capacitor charging of the full-wave rectified voltage is completed, and the inrush current is limited by the SCR after the capacitor charging is completed. A voltage charged in the capacitor by being switched by full-wave rectification means for full-wave rectifying the input AC power, a voltage-distributing means for distributing the voltage output from the full-wave rectification means, and a voltage distributed by the distribution means. SCR control means for forcibly discharging the power supply circuit characterized in that it comprises a power supply. 제1항에 있어서, 상기 SCR 제어수단은 상기 분배부의 출력 전압과 함께 시정수를 결정하는 콘덴서와, 상기 분배부의 출력 전압에 의해 스위칭되는 트랜지스터와, 상기 트랜지스터의 스위칭 상태에 따라 스위칭되어 콘덴서에 충전된 전압을 강제로 방전시켜 상기 SCR 을 강제로 오프시키는 트랜지스터와, 상기 트랜지스터를 바이어스시키는 저항으로 구성됨을 특징으로 하는 전원 공급 장치의 돌입 전류 제한 회로.The method of claim 1, wherein the SCR control means comprises a capacitor for determining a time constant together with the output voltage of the distributor, a transistor switched by the output voltage of the distributor, and a switching state of the transistor to charge the capacitor. And a resistor for forcibly turning off the SCR by forcibly discharging the voltage, and a resistor for biasing the transistor. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940011886A 1994-05-30 1994-05-30 Inrush Current Protection Circuit of Power Supply KR950034957A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940011886A KR950034957A (en) 1994-05-30 1994-05-30 Inrush Current Protection Circuit of Power Supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940011886A KR950034957A (en) 1994-05-30 1994-05-30 Inrush Current Protection Circuit of Power Supply

Publications (1)

Publication Number Publication Date
KR950034957A true KR950034957A (en) 1995-12-28

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ID=66682186

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940011886A KR950034957A (en) 1994-05-30 1994-05-30 Inrush Current Protection Circuit of Power Supply

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KR (1) KR950034957A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100504241B1 (en) * 1997-12-27 2005-10-12 현대 이미지퀘스트(주) Discharge circuit of power circuit
KR100606529B1 (en) * 1998-09-16 2006-07-31 마츠시타 덴끼 산교 가부시키가이샤 Power circuit including inrush current limiter, and integrated circuit including the power circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100504241B1 (en) * 1997-12-27 2005-10-12 현대 이미지퀘스트(주) Discharge circuit of power circuit
KR100606529B1 (en) * 1998-09-16 2006-07-31 마츠시타 덴끼 산교 가부시키가이샤 Power circuit including inrush current limiter, and integrated circuit including the power circuit

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