KR980007870A - Electronic Ballast for High Pressure Discharge Lamps - Google Patents

Electronic Ballast for High Pressure Discharge Lamps Download PDF

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Publication number
KR980007870A
KR980007870A KR1019960021118A KR19960021118A KR980007870A KR 980007870 A KR980007870 A KR 980007870A KR 1019960021118 A KR1019960021118 A KR 1019960021118A KR 19960021118 A KR19960021118 A KR 19960021118A KR 980007870 A KR980007870 A KR 980007870A
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KR
South Korea
Prior art keywords
discharge lamp
terminal
circuit
power supply
capacitor
Prior art date
Application number
KR1019960021118A
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Korean (ko)
Inventor
김중성
한민수
배수호
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김중성
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Publication date
Application filed by 김중성 filed Critical 김중성
Priority to KR1019960021118A priority Critical patent/KR980007870A/en
Publication of KR980007870A publication Critical patent/KR980007870A/en

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Abstract

본 발명은 고압 방전등용 전자식 안정기에 관한 것으로 전원 및 정류회로(1)를 통해 확보된 직류전원은 직렬공진에 의해 고주파수(약 30KHZ)의 교류를 생성하는 인버터회로(3)에 공급되며, 이 인버터 회로는 FET가 동시에 통전 될 수 없도록 비 통전시간(DEAD TIME)이 확보된 회로가 내장되어 있고 거의 영전압 하에서 FET를거동시키는 인버터 게이팅회로(2)에 의해서 스위칭 된다. 인버터회로(3)를 통해 발생된 고주파수의 교류는 방전등(5)에 공급되어 나트륨들, 메탈할라이드등 및 수은등과 가은 고압방전등을 점등 유지시킨다. 또한, 방전등의 냉음극간에 초기 방전을 위하여 고압을 발생하는 점등회로(4)는 SIDAC을 사용하여 기존 SCR방식보다 회로를 한층 간소화 시켜 소형화를 추구하였다.The present invention relates to an electronic ballast for a high-pressure discharge lamp, the DC power secured through the power supply and rectifier circuit (1) is supplied to an inverter circuit (3) for generating alternating current of high frequency (about 30KHZ) by series resonance, the inverter The circuit is switched by an inverter gating circuit 2 having a built-in circuit having a dead time so that the FET cannot be energized at the same time and operating the FET at almost zero voltage. The alternating current of high frequency generated through the inverter circuit 3 is supplied to the discharge lamp 5 to keep the sodium, the metal halide lamp, the mercury lamp, and the silver high-pressure discharge lamp on. In addition, the lighting circuit 4 for generating a high voltage for the initial discharge between the cold cathode of the discharge lamp, using the SIDAC simplifies the circuit further than the conventional SCR method to seek miniaturization.

이로서 본 발명은 스위칭 손실이 최소화 되고 내구성이 증가되어 장수명을 보장되면 소형화한 전자식 안정기를 고안한 것으로 기존의 안정기에 비해 한층 향상된 장수명 고신뢰의 고압방전등용 전자식 안정기에 관하여 기술한 것이다.As such, the present invention has been designed with a miniaturized electronic ballast when the switching loss is minimized and the durability is increased to ensure long life, and the electronic ballast for a high-voltage discharge lamp having a longer life and higher reliability than the conventional ballast is described.

Description

고압 방전등용 전자식 안정기Electronic Ballast for High Pressure Discharge Lamps

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1a는 전자식 안정기의 블록도.1a is a block diagram of an electronic ballast.

제2a도는 본 발명에 따른 고압 방전등용 자식 안정기의 인버터 구성도.2a is an inverter configuration diagram of a child ballast for a high-pressure discharge lamp according to the present invention.

제2b도는 점등회로를 제외한 제2a도에 따른 등가회로.2b is an equivalent circuit according to FIG. 2a except for a lighting circuit.

제2c도는 제2a도에 따른 파형도.2c is a waveform diagram according to FIG. 2a.

제3a도는 기존 HALF BRIDGE 방식의 인버터의 구성도.Figure 3a is a block diagram of a conventional HALF BRIDGE type inverter.

제3b도는 제3a도에 따른 등가회로.3b is an equivalent circuit according to FIG. 3a.

제3c도는 제3a도에 따른 파형도.3c is a waveform diagram according to FIG. 3a.

제4a도는 고압발생 회로도.Figure 4a is a high-voltage circuit diagram.

제4b도는 제4a도에 따른 각부의 파형도.4b is a waveform diagram of each part according to FIG. 4a.

Claims (3)

고압 방전등용 전자식 안정기에 관한 것으로, 전원 및 정류회로(1)에 연결되어 이를 정현파로 변환하여 방전등(5)을 정상 점등시키기 위하여 정전류를 공급함에 있어, 비 통전시간(DEAD TIME)을 갖는 인버터 게이팅 회로(2)에 의해 스위칭 되는 인버터회로(3)와, 상기 전원 및 정류회로(1)와 인버터회로(3)에 연결되어 방전등(5)의 냉음극간의 초기방전 개시를 위한 고전압 펄스를 공급하는 점등회로(4)로 이루어지는 것을 특징으로 하는 고압 방전등용 전자식 안정기.The present invention relates to an electronic ballast for a high-pressure discharge lamp, which is connected to a power source and a rectifier circuit (1), converts it into a sine wave, and supplies a constant current to turn on the discharge lamp (5) normally. Connected to the inverter circuit 3 switched by the circuit 2 and the power supply and rectifier circuit 1 and the inverter circuit 3 to supply a high voltage pulse for the initial discharge start between the cold cathodes of the discharge lamp 5. An electronic ballast for a high-pressure discharge lamp, characterized by comprising a lighting circuit (4). 제1항에 있어서, 상기 인버터회로(3)는, 전원 및 정류회로(1)를 통해 생성된 전원의 콘덴서 C5에 병렬로 접속된 채 직렬로 접속되는 FET Q1,Q2와, 상기 FET Q1의 소스단자와 Q2의 드레인 단자의 접속점과 음극전원(-)사이에 질렬로 연결되는 콘덴서 C11과 저항 R10과, 한 단자가 상기 FET Q1의 소스단자와 Q2의 드레인 단자의 접속점에 연결되며 다른 한단자가 방전등에 연결되는 콘덴서 C7 과 한 단자가 상기 방전등의 한단자와 콘덴서C7의 접속점에 연결되며 다른 한단자가 음극전원(-)에 연결되는 바리스터ZNR2와, 2차코일 T2-2가 상기 방전등의 한 단자에 연결되며 다른 한단자가 음극전원(-)에 연결되는 반압기겸 인덕터 코일인 T2로 구성된 것을 특징으로 하는 고압 방전등용 전자식 안정기.2. The inverter circuit (3) according to claim 1, wherein the inverter circuit (3) includes FETs Q1 and Q2 connected in series and connected in parallel to a capacitor C5 of a power source generated through the power source and the rectifier circuit 1, and a source of the FET Q1. A capacitor C11 and a resistor R10 connected in series between the terminal and the drain terminal of Q2 and the negative power supply (-), and one terminal are connected to the connection point of the source terminal of the FET Q1 and the drain terminal of Q2, and the other terminal is discharge lamp. A capacitor C7 connected to one terminal of the discharge lamp and a connection point of the capacitor C7 and a varistor ZNR2 connected to the cathode power supply (-) and a secondary coil T2-2 connected to one terminal of the discharge lamp. An electronic ballast for a high-pressure discharge lamp, characterized in that consisting of T2, a half-pressure and inductor coil, the other terminal is connected to the negative power supply (-). 제1항에 있어서, 냉금극간 초기 방전개시를 위한 고전압 펄스를 공급하는 점등회로(4)는, 전원 및 정류회로(1)를 통해 공급된 전원의 콘덴서 C5에 병렬로 접속된 채 직렬로 접속되는 저항 R7과 콘덴서 C6와, 트랜지스터 구동을 위한 전압 분압을 위하여 다이오드 D6의 음극단자와 음극전원(-)사이에 직렬로 연결되는 저항 R8, R9 와 트랜지스터 TR의 베이스에 전원을 인가하기 위하여 음극단자에 저항 R8를연결하고 양극단자에 콘덴서 C7과 방전등과 ZNR2의 접속점에 삽입하는 다이오드 D6과; 상기 저항 R7과 콘덴서 C6의 연결점에 콜렉터를 연결하고 저항 R8과 R9의 접속점에 베시스를 연결하고 변압기겸 인덕터의 1차측 코일 T2-1에 에미터를 연결하는 트랜지스터 TR과, 상기 트랜지스터의 에미터와 SIDAC 사이에 1차측 코일 T2-1을 연결하고 2차측 코일을 방전등의 한 단자와 음극전원(-)에 연결하는 인덕터겸 변압기 T2와, 상기 인덕터겸 변압기 1차코일 T2-1의 한단자와 음극전원(-)사이에 삽입하는 SIDAC S1으로 구성되는 것을 특징으로 하는 고압방전등용 전자식 안정기.The lighting circuit (4) according to claim 1, wherein the lighting circuit (4) for supplying a high voltage pulse for initiating the initial discharging between cold poles is connected in series while being connected in parallel to a capacitor (C5) of a power supply supplied through the power supply and the rectifier circuit (1). Resistor R7 and capacitor C6 and the negative terminal to apply power to the base of resistors R8, R9 and transistor TR connected in series between the negative terminal of diode D6 and the negative power supply (-) for voltage division for driving the transistor. A diode D6 which connects a resistor R8 and is inserted at the junction of the capacitor C7, the discharge lamp and ZNR2 at the positive terminal; A transistor TR connecting a collector to a connection point of the resistor R7 and a capacitor C6, a VESSI connection to a connection point of the resistors R8 and R9, and an emitter to a primary coil T2-1 of a transformer and an inductor, and an emitter of the transistor And an inductor and transformer T2 for connecting the primary coil T2-1 between SIDAC and the secondary coil to one terminal of the discharge lamp and the negative power supply (-), and one terminal of the primary coil T2-1 of the inductor and transformer. An electronic ballast for a high-pressure discharge lamp, characterized in that consisting of SIDAC S1 inserted between the cathode power (-).
KR1019960021118A 1996-06-13 1996-06-13 Electronic Ballast for High Pressure Discharge Lamps KR980007870A (en)

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KR1019960021118A KR980007870A (en) 1996-06-13 1996-06-13 Electronic Ballast for High Pressure Discharge Lamps

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KR1019960021118A KR980007870A (en) 1996-06-13 1996-06-13 Electronic Ballast for High Pressure Discharge Lamps

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KR980007870A true KR980007870A (en) 1998-03-30

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000072047A (en) * 2000-07-14 2000-12-05 김갑현 Metal lamp action inverter circuit unit
KR100356940B1 (en) * 1998-03-27 2002-10-18 황갑우 Electronic Ballast for High Intensity Discharge Lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100356940B1 (en) * 1998-03-27 2002-10-18 황갑우 Electronic Ballast for High Intensity Discharge Lamp
KR20000072047A (en) * 2000-07-14 2000-12-05 김갑현 Metal lamp action inverter circuit unit

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