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KR940023318A - Multiple lighting circuit of discharge lamp ballast - Google Patents

Multiple lighting circuit of discharge lamp ballast Download PDF

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Publication number
KR940023318A
KR940023318A KR1019930003526A KR930003526A KR940023318A KR 940023318 A KR940023318 A KR 940023318A KR 1019930003526 A KR1019930003526 A KR 1019930003526A KR 930003526 A KR930003526 A KR 930003526A KR 940023318 A KR940023318 A KR 940023318A
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KR
South Korea
Prior art keywords
power
discharge lamp
output
lamp ballast
unit
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KR1019930003526A
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Korean (ko)
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KR960001795B1 (en
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김철주
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유금송
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Publication of KR940023318A publication Critical patent/KR940023318A/en
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Publication of KR960001795B1 publication Critical patent/KR960001795B1/en

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements

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  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

본 발명은 방전등 안정기의 다등점등회로에 관한 것으로, 입력되는 교류전원의 노이즈 성분을 제거하면서 직류전원으로 바꾸어 출력부로 공급되도록 하고, 상기 교류 전원이 트랜스에 의해 전압강하된 후 정류되어 공급되는 두 발진부에서는 시간에 따라 주파수가 변경되는 구형파를 각각 출력하도로 하고, 상기의 구형파가 각각 1차측에서 인가되는 출력부의 고주파 트랜스에서는 상호 역극성으로 권선된 각각의 2차측에서 두 트랜지스터들을 각각 교호로 동작시키도록 함으로써 교호로 연동되는 스위치에 의해 두 출력부가 선택적으로 동작하면서 보조안정기를 각각 구비한 방전등을 병렬로 다수 점등시킬 수 있도록 한 것이다.The present invention relates to a multi-illumination circuit of a discharge lamp ballast, and removes the noise component of the input AC power supply to be converted to the DC power supply to the output unit, and the two oscillator is rectified and supplied after the voltage drop by the transformer In order to output each square wave whose frequency changes over time, in the high-frequency transformer of the output section to which the square wave is applied on the primary side, the two transistors are alternately operated on the respective secondary sides wound with mutual polarity. By alternately interlocking switches, the two outputs can be selectively operated while lighting a plurality of discharge lamps each having an auxiliary ballast in parallel.

Description

방전등 안정기의 다등점등회로Multiple lighting circuit of discharge lamp ballast

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

제1도는 종래의 형광등 점등장치의 회로도, 제2도는 종래의 다등식 방전등용 안정기 점등회로의 회로도, 제3도는 본 발명의 전원 공급회로의 회로도, 제4도는 본 발명의 방전등의 회로도, 제5도는 본 발명의 발진부의 상세회로도.FIG. 1 is a circuit diagram of a conventional fluorescent lamp lighting apparatus, FIG. 2 is a circuit diagram of a conventional ballast lighting circuit for a multi-discharge lamp, FIG. 3 is a circuit diagram of a power supply circuit of the present invention, and FIG. 4 is a circuit diagram of a discharge lamp of the present invention. Fig. Is a detailed circuit diagram of the oscillation part of the present invention.

Claims (4)

방전등 안정기의 다등점등회로에 있어서, 인력되는 AC전원의 노이즈를 흡수제거하는 노이즈제거부(21)와, 상기 노이즈제거부(21)를 경유한 AC전원을 정확하고 역률이 개선된 DC전원으로 바꾸어 출력하는 정류부(22)및 필터부(23)와, 상기 노이즈 제거부(21)로 부터의 AC전원을 전압강하시키면서 전파정류시켜 DC전원으로 출력하는 전원트랜스부(24)와, 상기 전원 트랜스(24)로부터 입력되는 전압강하된 DC전원에 대해 2가지의 주파수를 갖는 구형파신호를 출력하는 발진부(25),(26)와, 상기 발진부(25)(26)로 부터의 구형파에 따라 트랜스(T20),(T21)의 역극성으로 권선된 2차측의 유기전압으로 트랜지스터(Q20,Q21),(Q22,Q23)들을 각각 교대로 온/오프 시키면서 상기 필터부(23)를 경유한 DC전원을 고주파 교류신호로 출력하는 출력부(27)(28)와, 접점(A),(B)이 구비된 스위치(SW20)에 의해 두 출력부(27),(28)에 DC전원을 선택적으로 공급하면서 연동하는 스위치(SW21),(SW22)에 의해 두 공통출력선(Line1),(line2)에 고주파 교류 신호를 선택적으로 출력하는 스위칭부(29)와, 상기의 두공통 출력선(Line1),(Line)에 병렬로 접속된 램프(LP20)~(LP20c)에 하나씩 설치되는 인덕터(L21)~(L21c) 및 콘덴서(C27)~(C27c)로 이루어진 램프 점등부(30)~(30c)들로 구성됨을 특징으로 하는 방전등 안정기의 다등점등회로.In the multi-lighting circuit of the discharge lamp ballast, the noise removing unit 21 for absorbing and removing noise of the AC power applied to the discharge lamp ballast and the AC power supply via the noise removing unit 21 are replaced with a DC power source having an improved power factor. A rectifying section 22 and a filter section 23 for outputting, a power supply section 24 for full-wave rectifying and outputting the AC power from the noise removing section 21 to a DC power supply, and the power transformer ( Oscillators 25 and 26 for outputting square wave signals having two frequencies with respect to the voltage-dropped DC power source input from 24, and transformers T20 according to the square waves from the oscillators 25 and 26. DC power through the filter unit 23 while the transistors Q20, Q21 and Q22 and Q23 are alternately turned on and off with the induced voltage of the secondary side wound with reverse polarity of On the switch SW20 provided with the output parts 27 and 28 which output as an AC signal, and the contacts A and B, By selectively supplying DC power to the two output units 27 and 28, the high frequency AC signal is selectively output to the two common output lines Line1 and line2 by the switches SW21 and SW22 that interlock. Inductors L21 to L21c and capacitors C27, which are provided one by one at the switching units 29 and the lamps LP20 to LP20c connected in parallel to the two common output lines Line1 and Line. Lamp lighting unit 30 consisting of (C27c) ~ (30c) of the multi-light circuit of the discharge lamp ballast characterized in that consisting of. 제1항에 있어서, 상기 발진부(25)(26)는 모드 전원 트랜스(24)의 DC전원이 전해콘덴서(C28)와 저항(R20) 및 다이오드(D27)를 통해 트랜지스터(Q24)의 베이스에 인가되고, 상기의 DC전원이 콜렉터로 인가되는 상기 트랜지스터(Q24)의 에미터에 포토카플러(PC1),(PC2)를 직렬로 접속하여 발진IC(31)의 시정수가 저항(R21)(R22) 및 콘덴서(C29)의 결합이나 저항(R22) 및 콘덴서(C29)의 결합에 의해 결정되도록 하는 것을 특징으로 하는 방전등 안정기의 다등점등회로.The method of claim 1, wherein the oscillator (25, 26) is applied to the base of the transistor (Q24) through the DC power of the mode power transformer 24 through the electrolytic capacitor (C28), resistor (R20) and diode (D27) The photocouplers PC1 and PC2 are connected in series to the emitter of the transistor Q24 to which the DC power source is applied to the collector, so that the time constants of the oscillation IC 31 are resistors R21, R22 and A multi-illumination circuit of a discharge lamp ballast characterized in that it is determined by the coupling of the capacitor (C29) or the coupling of the resistor (R22) and the capacitor (C29). 제1항에 있어서, 상기의 발진부(25)(26) 및 출력부(27),(28)를 2개씩 형성하고 스위칭부(29)에 의해 하나씩 선택적으로 동작시키도록 한 것을 특징으로 하는 방전등 안정기의 다등점등 회로.The discharge lamp ballast of claim 1, wherein the oscillation unit (25), the output unit (27), and the (28) are formed two by one and selectively operated by the switching unit (29) one by one. Multi-light circuit. 제1항에 있어서, 상기 램프(LP20)~(LP20c)에 각각 설치되는 램프점등부(30)~(30c)의 인덕터(L21)~(L21c) 및 콘덴서(C27)~(C27c)에 의한 주파수값이 상기 공통 출력선(Line1),(Line2)을 통해 출력되는 고주파 교류신호의 주파수와 공진중에 일치하지 않도록 하여 인덕터(L21)~(L21c)의 포화를 방지하도록 한 것을 특징으로 하는 방전등 안정기의 다등점등회로.The frequency of the inductor L21 to L21c and the capacitors C27 to C27c of the lamp lighting units 30 to 30c respectively provided in the lamps LP20 to LP20c. The value of the discharge lamp ballast characterized in that the value does not coincide with the frequency of the high frequency AC signal output through the common output line (Line1), (Line2) during resonance to prevent saturation of the inductors (L21) to (L21c). Multi-light circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930003526A 1993-03-09 1993-03-09 Multiple lighting circuit of discharge lamp ballast KR960001795B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930003526A KR960001795B1 (en) 1993-03-09 1993-03-09 Multiple lighting circuit of discharge lamp ballast

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930003526A KR960001795B1 (en) 1993-03-09 1993-03-09 Multiple lighting circuit of discharge lamp ballast

Publications (2)

Publication Number Publication Date
KR940023318A true KR940023318A (en) 1994-10-22
KR960001795B1 KR960001795B1 (en) 1996-02-05

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KR1019930003526A KR960001795B1 (en) 1993-03-09 1993-03-09 Multiple lighting circuit of discharge lamp ballast

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