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KR200164580Y1 - The electromagnetic interfernce cir cuit of an electron stabilezation fluorescent light - Google Patents

The electromagnetic interfernce cir cuit of an electron stabilezation fluorescent light Download PDF

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Publication number
KR200164580Y1
KR200164580Y1 KR2019990014493U KR19990014493U KR200164580Y1 KR 200164580 Y1 KR200164580 Y1 KR 200164580Y1 KR 2019990014493 U KR2019990014493 U KR 2019990014493U KR 19990014493 U KR19990014493 U KR 19990014493U KR 200164580 Y1 KR200164580 Y1 KR 200164580Y1
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South Korea
Prior art keywords
electronic ballast
circuit
electromagnetic
stabilezation
interfernce
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Application number
KR2019990014493U
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Korean (ko)
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최광번
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주식회사상화기전
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00Screening of apparatus or components against electric or magnetic fields

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

본 고안은 형광등의 전자식 안정기 입력회로인 필터부를 개선하여 노이즈의 유입 유출을 차단하도록 한 형광등용 전자식 안정기의 EMI 회로에 관한 것으로서, 특히 전자식 안정기용 필터부에 있어서, 낙뢰방지회로인 TNR1,2,3와, 병렬로 인덕 터(L1,L2)와 콘덴서(C1)를 구비하되, 전원 입력단측으로 콘덴서(C2)가 추가 구성된 특징이 있다.The present invention relates to an EMI circuit of an electronic ballast for fluorescent lamps to improve the filter part, which is an electronic ballast input circuit of fluorescent lamps, so as to block the inflow and outflow of noise. Particularly, in the electronic ballast filter part, TNR1, 2, which is a lightning protection circuit, 3, in parallel with the inductors (L1, L2) and the capacitor (C1), characterized in that the condenser (C2) is further configured to the power input terminal side.

Description

형광등용 전자식 안정기의 이엠아이 회로{The electromagnetic interfernce cir cuit of an electron stabilezation fluorescent light}Electromagnetic interfernce cir cuit of an electron stabilezation fluorescent light

본 고안은 전자식 안정기의 EMI(Electromagnetic Interference)에 관한 것으로서, 특히 형광등의 전자식 안정기 입력회로인 필터부를 개선하여 노이즈의 유입 유출을 차단하도록 한 형광등용 전자식 안정기의 EMI 회로에 관한 것이다.The present invention relates to an electromagnetic interference (EMI) of an electronic ballast, and more particularly, to an EMI circuit of an electronic ballast for a fluorescent lamp, which blocks an inflow and outflow of noise by improving a filter unit which is an electronic ballast input circuit of a fluorescent lamp.

최근 전자기기의 증가 추세에 따라 그 전자기기에서 발생하는 인공 노이즈가 크게 문제로 대두되는데, 특히 디지탈신호를 사용하는 전자기기는 넓은 주파수 대역에 걸쳐서 노이즈가 발생하므로, 양질의 신호 전송을 위해서는 이를 제거시킬 것이 요망된다.Recently, with the increasing trend of electronic devices, artificial noise generated from such electronic devices has become a big problem. Especially, electronic devices using digital signals generate noise over a wide frequency band, and thus remove them for high quality signal transmission. I want to.

일반적으로 디지탈 신호는 기본 주파수와 그 정수배 주파수 성분인 고조파를 포함하고 있는데, 이 고조파 성분이 노이즈의 주요 원인이 되며, 또한 디지탈 신호는 대개 고주파 성분을 포함하고 있기 때문에 이 고주파 성분이 노이즈의 원인이 되어 다른 전자기기나 회로에 방해를 준다.In general, a digital signal contains harmonics, which are fundamental and its integral frequency components.These harmonics are the main source of noise, and since digital signals usually contain high-frequency components, these high-frequency components are the source of noise. To interfere with other electronic devices or circuits.

이러한 예로써 본 고안이 적용되는 전자식 안정기도 예외일 수 없다.In this example, the electronic ballast to which the present invention is applied is no exception.

부연하면, 통상적으로 전자식 안정기는 도 1에 도시된 바와 같이, 필터부( 1)는 상용의 교류 입력전압인 AC전압 및 전류의 위상차를 상쇄시켜 고역률의 전압을 만들어 정류부(2)에 제공하며, 상기 정류부(2)는 교류전압을 안정기에 필요한 소정의 직류전압으로 변환하여 인버터부(3)와 발진부(6)에 제공하고, 상기 발진부 (6)는 발진신호를 인버터부(3)에 제공하여 인버터부(3)에서 스위칭동작이 이루어지도록 한다.In other words, the electronic ballast is typically shown in Figure 1, the filter unit 1 to offset the phase difference between the AC voltage and the current of the commercial AC input voltage to make a high power factor voltage to the rectifier (2) The rectifier 2 converts an AC voltage into a predetermined DC voltage necessary for the ballast and provides the inverter unit 3 and the oscillator 6 with the oscillator 6 providing an oscillation signal to the inverter unit 3. Thus, the switching unit 3 performs the switching operation.

이러한 일련의 작업에 의한 스위칭동작은 고주파 구형파를 발생시키며 고주파 구형파는 공진부(4)에서 정형파로 파형정형시켜 형광등(5)에 제공함으로써 종국에는 형광등(5)을 점등시킨다.The switching operation by such a series of operations generates a high frequency square wave, and the high frequency square wave is waveform-formed as a square wave in the resonator unit 4 and provided to the fluorescent lamp 5 to finally light the fluorescent lamp 5.

따라서 정류부로 고역률의 전압을 제공하는 필터부(1)의 그 역할은 매우 중요하다 할 수 있으며 이러한 필터부(1)를 종래에는 도 2에 도시된 바와 같이, 낙뢰방지회로인 TNR1,2,3과, 병렬로 인덕터(L1,L2)와 콘덴서(C1)로 구성되어 전원측에서 인가되는 유입노이즈를 효과적으로 제거할 수 있었으나, 회로에서 유입되는 노이즈(타전자기기에 영향을 미칠수 있는)를 제거하기에는 매우 미흡하였다.Therefore, the role of the filter unit 1 to provide a high power factor voltage to the rectifier may be very important. Such a filter unit 1 is conventionally shown in FIG. 3, inductor L1, L2 and capacitor C1 in parallel could effectively remove the inflow noise applied from the power supply side, but remove the noise (which may affect other electronic devices) from the circuit. Very poorly below.

따라서 본 고안은 상기와 같은 사항을 감안하여 안출된 것으로서, 그 목적은 형광등의 전자식 안정기 입력회로인 필터부를 개선하여 회로측에서 유입되는 노이즈도 차단시킴으로써 노이즈의 유입 유출을 완벽 차단하도록 된 형광등용 전자식 안정기의 EMI 회로를 제공함에 있다.Therefore, the present invention has been devised in view of the above matters, and its purpose is to improve the filter part, which is an electronic ballast input circuit of fluorescent lamps, to block the noise flowing from the circuit side, thereby completely blocking the inflow and outflow of noise. To provide a ballast EMI circuit.

도 1은 일반적인 전자식 안정기를 설명하기 위한 구성 블록도,1 is a block diagram illustrating a general electronic ballast;

도 2는 종래의 형광등용 전자식 안정기의 EMI를 설명하기 위한 상세 회로도,Figure 2 is a detailed circuit diagram for explaining the EMI of the conventional electronic ballast for fluorescent lamps,

도 3은 본 고안 형광등용 전자식 안정기의 EMI를 설명하기 위한 상세 회로도.Figure 3 is a detailed circuit diagram for explaining the EMI of the electronic ballast for fluorescent light of the present invention.

<도면의 주요 부분에 대한 부호의 설명>≪ Description of Codes for Major Parts of Drawings>

1:필터부, 2:정류부,1: filter part, 2: rectifier part,

3:인버터부, 4:공진부,3: inverter part, 4: resonance part,

5:형광등, 6:발진부.5: fluorescent light, 6: oscillation part.

상기와 같은 목적을 달성하기 위해 본 고안은 통상의 전자식 안정기용 필터부에 있어서, 낙뢰방지회로인 TNR1,2,3와, 병렬로 인덕터(L1,L2)와 콘덴서(C1)를 구비하되, 전원 입력단측으로 콘덴서(C2)가 추가 구성된 특징이 있다.In order to achieve the above object, the present invention is a conventional electronic ballast filter unit, provided with an inductor (L1, L2) and a capacitor (C1) in parallel with the TNR1, 2, 3, which is a lightning protection circuit, The capacitor C2 is further configured as an input terminal side.

이하, 첨부된 도면에 의거하여 본 고안을 좀 더 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

도 3은 본 고안 전자식 안정기 형광등의 EMI를 설명하기 위한 상세 회로도.Figure 3 is a detailed circuit diagram for explaining the EMI of the subject innovation electronic ballast fluorescent lamp.

본 고안은 통상적인 전자식 안정기의 주 구성인 상용의 교류입력전원과 필터부(1), 정류부(2), 발진부(6), 인버터부(3), 공진부(4), 형광등(5)에 있어, 상기 필터부를 개선한 것이다.The present invention is applied to a commercial AC input power source, a filter unit 1, a rectifying unit 2, an oscillation unit 6, an inverter unit 3, a resonator unit 4, and a fluorescent lamp 5, which are main components of a conventional electronic ballast. The filter part is improved.

이 필터부(1)는 상용의 교류 입력전압인 AC전압 및 전류의 위상차를 상쇄시켜 고역률을 만들어 정류부(2)에 제공하는 것으로서, 도 3에 도시된 바와 같이 낙뢰방지회로인 TNR1,2,3와, 병렬로 인덕터(L1,L2)와 콘덴서(C1)를 구비하되, 전원 입력단측으로 콘덴서(C2)가 추가 설치된다.The filter unit 1 provides a high power factor to the rectifying unit 2 by canceling a phase difference between an AC voltage and a current, which is a commercial AC input voltage, and as shown in FIG. 3, the inductor (L1, L2) and the capacitor (C1) is provided in parallel, the capacitor (C2) is further provided on the power input side.

이와같은 고안은 전원측에서 인가되는 유입노이즈를 효과적으로 제거할 수 있음은 물론이고, 회로 즉, 정류부 후단의 인버터 회로에서 형광등 점등을 위한 스위칭 동작시 그에따라 전원단측으로 돌아오는 것을 콘덴서(C2)에서 완벽히 차단시킴으로써 노이즈 유입 유출을 막을 수 있게 된다.Such a design can effectively remove the inflow noise applied from the power supply side, and when the switching operation for the lighting of the fluorescent lamp is turned on in the circuit, that is, the inverter circuit at the rear end of the rectifier, it is completely returned to the power supply side at the capacitor C2. By blocking it, noise inflow and outflow can be prevented.

이상에서 살펴본 바와 같이 본 고안은 형광등의 전자식 안정기 입력회로인 필터부를 간단히 개선하여 회로측에서 유입되는 노이즈도 완벽히 차단시킴으로써 타전자기기에 미치는 EMI 영향을 최소화시키는 특징을 지닌다.As described above, the present invention has a characteristic of minimizing the EMI effect on other electronic devices by simply improving the filter unit, which is an electronic ballast input circuit such as a fluorescent lamp, to completely block noise introduced from the circuit side.

Claims (1)

통상의 전자식 안정기용 필터부에 있어서, 낙뢰방지회로인 TNR1,2,3와, 병렬로 인덕터(L1,L2)와 콘덴서(C1)를 구비하되, 전원 입력단측으로 콘덴서(C2)가 추가 구성된 것임을 특징으로 한 형광등용 전자식 안정기의 EMI 회로.In the conventional electronic ballast filter unit, the inductor (L1, L2) and the condenser (C1) in parallel with the TNR1, 2, 3, which is a lightning protection circuit, and a capacitor (C2) is further configured on the power input side. EMI circuit of electronic ballast for fluorescent lamps.
KR2019990014493U 1999-07-21 1999-07-21 The electromagnetic interfernce cir cuit of an electron stabilezation fluorescent light KR200164580Y1 (en)

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Application Number Priority Date Filing Date Title
KR2019990014493U KR200164580Y1 (en) 1999-07-21 1999-07-21 The electromagnetic interfernce cir cuit of an electron stabilezation fluorescent light

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