KR910009103Y1 - Apparatus for discharge lamps - Google Patents
Apparatus for discharge lamps Download PDFInfo
- Publication number
- KR910009103Y1 KR910009103Y1 KR2019890011990U KR890011990U KR910009103Y1 KR 910009103 Y1 KR910009103 Y1 KR 910009103Y1 KR 2019890011990 U KR2019890011990 U KR 2019890011990U KR 890011990 U KR890011990 U KR 890011990U KR 910009103 Y1 KR910009103 Y1 KR 910009103Y1
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- KR
- South Korea
- Prior art keywords
- transformer
- circuit
- voltage
- transistor
- fluorescent lamp
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Classifications
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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
- H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
- H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
- H05B41/295—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
- H05B41/298—Arrangements for protecting lamps or circuits against abnormal operating conditions
Abstract
내용 없음.No content.
Description
첨부도면은 본 고안에 의한 형광등 안정기의 회로도.The accompanying drawings are circuit diagrams of a fluorescent lamp ballast according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings
가 : 수위칭회로 TR1, TR2: 트랜지스터A: Leveling circuit TR 1 , TR 2 : Transistor
T1, T2, T3: 트랜스 N1-N7: 권선T 1 , T 2 , T 3 : transformer N 1 -N 7 : winding
BD : 정류회로 R1-R3: 저항BD: Rectifier Circuit R 1- R 3 : Resistance
C1, C2: 콘덴서 LP : 형광등램프C 1 , C 2 : Condenser LP: Fluorescent lamp
TH : 더미스터TH: Dummyster
본 고안은 스위칭 트랜지스터를 이용한 형광등 안정기에 관한 것으로서, 특히 공지의 스위칭 트랜지스터와 트랜스 및 콘텐서를 연결하여 유기된 공진전압으로 형광등램프를 예열시켜 초고속으로 형광등을 점등시키고, 과온검출에 따른 전원차단기능을 구비하여 점등시의 안정성을 향상시킬 수 있게 한 것에 주안점을 둔 것이다.The present invention relates to a fluorescent ballast using a switching transistor, and in particular, by connecting a known switching transistor and a transformer and a capacitor to preheat the fluorescent lamp with the induced resonance voltage to turn on the fluorescent lamp at a very high speed, the power-off function according to the over temperature detection In order to improve the stability at the time of lighting is provided.
종래의 형광등을 점등시키는 안정기는 쵸크코일 자기형 변압기와 방전등으로 구싱되어 있는데, 이는 형광등을 점등시키는 속도가 너무늦고 초기에 고압을 흐르게 하므로서 전력소비가 많을뿐만 아니라 과열에 따른 오동작이 발생하게 되는 등 많은 문제점을 가지고 있었다.Conventional ballasts for lighting fluorescent lamps are covered with choke coil magnetic transformers and discharge lamps, which are too late to turn on fluorescent lamps and cause high power consumption at the initial stage, resulting in high power consumption and malfunction due to overheating. I had a lot of problems.
따라서 상기와 같은 종래의 문제점을 해결하고자 점등속도를 급속히 이루어지게 하여 전력소비를 줄이고자한 전자식 안정기 회로가 있었으나, 이는 회로가 너무 복잡하여 생산원가가 고가이기 때문에 실수요자에게 널리 보급시키는데 문제점이 따랐다.Therefore, there was an electronic ballast circuit to reduce power consumption by rapidly turning on the lighting speed in order to solve the conventional problems as described above, but the circuit was so complicated that the production cost was expensive, which caused a widespread problem to real users.
그러므로 본 고안은 형광등 점등시 트랜스의 발진전압을 안정시켜 초고속으로 이루어지고 스위칭 소자의 과온시 더미스터의 온도검출수단에 의해 전원을 자동적으로 차단되도록 하여 점등회로를 이상적으로 보호할 수 있도록 회로구성이 간단한 형광등 안전기회로를 제공하는데 그 목적이 있는 것이다.Therefore, the present invention is made at ultra high speed by stabilizing the oscillation voltage of the transformer when the fluorescent lamp is turned on, and the circuit configuration is ideal to protect the lighting circuit by automatically shutting off the power by the temperature detecting means of the dummyster when the switching element is overheated. The purpose is to provide a simple fluorescent lamp safety circuit.
이하 첨부도면에 의하여 본 고안을 상세하게 설명하면 다음과 같다. 첨부도면에 도시한 바와같이 AC 전원을 퓨우즈(F)와 더미스터(Th)를 거쳐 브리지 정류회로(BD)에 인가하고, 이 정류회로(BD)에서 정퓨된 직류전원은 고주파역률개선용 트랜스(T1)와, 트랜지스터(TR1, TR2)와 콘덴서(C1)및 저항(R1, R2, R3)으로 구성된 공지의 스위칭회로(가)를 거쳐 트랜스(T2)의 권선(N1-N2)에 인가되도록 연결하고, 이 트랜스(T2)의 2차측 권선(N4)과 병렬로 형성된 트랜스(T3)사이에 고주파 발진전압공진용 콘덴서(C2)를 연결구성한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. As shown in the accompanying drawings, AC power is applied to the bridge rectifier circuit BD through the fuse F and the dummyster Th, and the DC power rectified in the rectifier circuit BD is a high frequency power factor improvement transformer. Winding of transformer T 2 via a known switching circuit consisting of (T 1 ), transistors TR 1 , TR 2 , capacitor C 1 , and resistors R 1 , R 2 , R 3 (N 1 -N 2) connected to be applied to, and the transformer (T 2) 2-side winding (N 4) is formed in parallel with the transformer (T 3) connected to the high frequency oscillation voltage resonant capacitor (C 2) between the Configure.
그리고. 상기 콘덴서(C2)를 통한 형광램프(LP)의 양단에 형광램프(LP)의 필라멘트 예열용 트랜스(T3)를 연결하여서 구성된 것이다.And. The filament preheating transformer T 3 of the fluorescent lamp LP is connected to both ends of the fluorescent lamp LP through the condenser C 2 .
이와같이 구성된 본 고안의 동작 및 작용효과률 설명하면 다음과 같다. 입력단자에 인가되는 상용교류 전원(AC 110/220V, 60㎐)은 정류회로(BD)에 의해 정류되어 정류된 직류전원이 평활용 트랜스(T1)와 트랜스(T2)의 1차 권선(N1, N2)을 통해 각 트랜지스터(TR1, TR2)의 콜렉터 전위로 인가되는 동시에 각 트랜지스터(TR1. TR2)의 베이스에는 트랜스(T2)의 보조권선(N3)에 유기된 베이스 전압이 인가된다.Referring to the operation and effect ratio of the present invention configured as described above are as follows. The commercial AC power applied to the input terminal (AC 110 / 220V, 60 단) is rectified by the rectifier circuit (BD) and the rectified DC power is the primary winding of the smoothing transformer (T 1 ) and the transformer (T 2 ) N 1, N 2) to the secondary winding (N 3) of each transistor (TR 1, at the same time is applied to the collector potential of the TR 2), each transistor (TR 1. base, trans (T 2) of the TR 2) through the organic Base voltage is applied.
이와동시에 저항(R1, R2, R3)을 통한 트랜스(T1)의 출력전압이 트랜지스터 (TR1, TR2)의 베이스에 바이어스 전압으로 인가되는 상태에서 트랜스(T1)는 회로가 부하로 볼때에 고주파에는 높은 저항을 갖고 있음으로 평활 작용으로 부하측에 일정한 전류를 공급하게 된다.At the same time, while the output voltage of the transformer T 1 through the resistors R 1 , R 2 , R 3 is applied as a bias voltage to the base of the transistors TR 1 , TR 2 , the transformer T 1 is connected to the circuit. In terms of load, it has high resistance at high frequency, so it supplies smooth current to load side by smoothing action.
이때에 2개의 트랜지스터(TR1, TR2)간에 스위칭 언바란스에 의하여 어느한쪽 트랜지스터(예 TR1)가 턴온되어 콜렉터 전류가 흐르기 시작한다. 트랜지스터(TR1)의 콜렉터에 콜렉터 전류가 흐르기 시작하면 트랜스(T2)의 1차 권선(N1)에는 일정전압이 발생하게 되는 동시에 트랜스(T2)의 2차 권선(N4)에 고전압이 유기된다.At this time, either transistor (eg, TR 1 ) is turned on by switching unbalance between the two transistors TR 1 and TR 2 , and the collector current starts to flow. In the high voltage at the secondary winding (N 4) at the same time that the constant voltage generating transformer (T 2) 1 primary winding (N 1) of when the collector current on the collector of the transistor (TR 1) begins to flow transformer (T 2) This is organic.
더욱상세하게는 2개의 트랜지스터(TR1, TR2)베이스간에 감겨져 있는 권선(N3)에서 유기된 전압은 트랜지스터(TR1)을 순바이어스로 인가되어 턴온시키고, 또 다른 트랜지스터(TR2)는 역 바이어스로 되어 오프가 된다. 이때 트랜스(T2)의 1 차권선(N1, N2)에 발생한 전압은 콘덴서(C1)와 트랜스(T2)의 1차 권선(N1, N2)이 인덕턴스에 의하여 공진회로가 이루어져 공진작용으로 권선(N3)에 극성이 반전되어 트랜지스터(TR2)의 베이스에는 순바이어스 전압이 인가되어 트랜지스터(TR2)는 온 된다.More specifically, the voltage induced in the winding N 3 wound between the bases of the two transistors TR 1 and TR 2 is applied to the transistor TR 1 with forward bias, thereby turning on another transistor TR 2 . It is reverse biased and turned off. The transformer (T 2) the voltage generated in the primary winding (N 1, N 2) of the capacitor (C 1) and the transformer (T 2) is of the resonance circuit by the inductance, a primary winding (N 1, N 2) consists of the polarity is inverted to a resonance action with the winding (N 3) is the forward bias voltage, the base of the transistor (TR 2) is applied on the transistor (TR 2).
이와같은 동작으로 권선(N2)에 전류가 흐르기 시작하면 권선(N2)에서 발생하는 전압은 트랜지스터(TR1)가 온일때 반대극성으로 트랜스(T2)의 권선에 전압이 유기되고, 다시 유기된 권선(N3)의 전압으로 트랜지스터(TR2)가 턴온되어 트랜지스터(TR1)가 오프되는 반복적인 동작을 빠른 속도로 스위칭 시킨다.By this same operation begins to flow a current to the windings (N 2) the voltage generated in the windings (N 2) is a voltage being induced in the windings of the transistor (TR 1) is turned on when transformer (T 2) to the opposite polarity, again The transistor TR 2 is turned on with the voltage of the induced winding N 3 to switch at a high speed the repetitive operation in which the transistor TR 1 is turned off.
상기 교호적인 스위칭 동작으로 트랜스(T2)의 1차 권선(N1, N2)에 인가된 전압이 2차 권선(N4)에 유기된다. 권선 (N4)에 유기된 전압을 콘덴서(C2)와 트랜스(T2)의 인덕턴스 사이에 공진이 되어 트랜스(T3)에 고주파(30㎐-50㎑*C1및 C2용량변경으로 주파수도 변경됨)전압이 인가된다.In this alternate switching operation, the voltage applied to the primary windings N 1 , N 2 of the transformer T 2 is induced in the secondary winding N 4 . The voltage induced in the winding (N 4 ) is resonated between the inductance of the capacitor (C 2 ) and the transformer (T 2 ), and the high frequency (30㎐-50㎑ * C 1 and C 2 capacitance change in the transformer (T 3 )). Frequency is also changed).
트랜스(T3)에 인가된 고주파 전압은 그의 권선(N5, N7)에 유기된 전압에 의해 형광램프의 필라멘트를 예열시키고 권선(N6)에 유기된 전압은 권선(N5, N7)을 통하여 헝광램프(LP)를 점등하게 된다.The high frequency voltage applied to the transformer T 3 preheats the filament of the fluorescent lamp by the voltage induced in its windings N 5 , N 7 and the voltage induced in the winding N 6 is the windings N 5 , N 7. The lighting lamp LP is turned on.
이상에서 설명한 바와같이 본 고안은 상용전원을 정류하여 30㎐-50㎑의 주파수 범위로 변환하여 형광램프를 점화함에 있어서 트랜스(T2)에 직접적인 영향을 덜 미치는 직열공진회로를 택하였으며, 이로 인하여 전력손실을 경감시킬 수가 있고, 아울러 입력단자에 퓨유즈와 직열로 연결한 더미스터(TH)는 트랜지스터(TR1, TR2)부근에 설치하여 연속동작에 의한 과열시 입력교류전원(AC)공급을 차단시키도록 하므로서 과부하 과열을 방지하여 회로 보호와 안정을 유지할 수가 있는 매우 유용한 고안인 것이다.As described above, the present invention selects a direct thermal resonance circuit which rectifies a commercial power supply and converts it into a frequency range of 30 kHz to 50 kHz, which has less direct effect on the transformer (T 2 ) in igniting a fluorescent lamp. The power loss can be reduced, and the dummyster TH connected to the fuse terminal in series with the fuse is installed near the transistors TR 1 and TR 2 to supply the input AC power when overheated by continuous operation. It is a very useful design to keep the circuit protection and stability by preventing overheating by blocking the overload.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019890011990U KR910009103Y1 (en) | 1989-08-14 | 1989-08-14 | Apparatus for discharge lamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019890011990U KR910009103Y1 (en) | 1989-08-14 | 1989-08-14 | Apparatus for discharge lamps |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR910005230U KR910005230U (en) | 1991-03-20 |
| KR910009103Y1 true KR910009103Y1 (en) | 1991-11-25 |
Family
ID=19289155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019890011990U KR910009103Y1 (en) | 1989-08-14 | 1989-08-14 | Apparatus for discharge lamps |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR910009103Y1 (en) |
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1989
- 1989-08-14 KR KR2019890011990U patent/KR910009103Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR910005230U (en) | 1991-03-20 |
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