KR880002936Y1 - Electronic ballast of fluorescent lamp - Google Patents

Electronic ballast of fluorescent lamp Download PDF

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Publication number
KR880002936Y1
KR880002936Y1 KR2019850007842U KR850007842U KR880002936Y1 KR 880002936 Y1 KR880002936 Y1 KR 880002936Y1 KR 2019850007842 U KR2019850007842 U KR 2019850007842U KR 850007842 U KR850007842 U KR 850007842U KR 880002936 Y1 KR880002936 Y1 KR 880002936Y1
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transistor
voltage
transformer
fluorescent lamp
circuit
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KR2019850007842U
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Korean (ko)
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KR870001392U (en
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박선동
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박선동
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14Circuit arrangements
    • H05B41/26Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28Circuit 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
    • H05B41/295Circuit 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

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  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

내용 없음.No content.

Description

형광등의 전자식 안정기Electronic ballast of fluorescent lamp

제 1 도는 본 고안의 회로도.1 is a circuit diagram of the present invention.

제 2 도는 파형도로서 제 2 (a)도는 다이악의 펄스 파형도, 제 2 (b)도는 트랜지스터의 파형도, 제 2 (c)도는 트랜스의 2차권선 출력 파형도.Fig. 2 is a waveform diagram, in which Fig. 2 (a) is a pulse waveform diagram of a diac, Fig. 2 (b) is a waveform diagram of a transistor, and Fig. 2 (c) is a secondary winding output waveform diagram of a transformer.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 형광구 2 : 배전압회로1: fluorescent bulb 2: double voltage circuit

a, b : 입력전원 c : +전압a, b: input power c: + voltage

d : -전압 T : 트랜스d: -voltage T: transformer

e, f, g, h : 일차코일 i, j, k, l : 2차코일e, f, g, h: primary coil i, j, k, l: secondary coil

DA : 다이악 CH : 초크코일DA: Diac CH: Choke Coil

F1, F2: 필라멘트 TR1, TR2: 트랜지스터F 1 , F 2 : Filament TR 1 , TR 2 : Transistor

NSF : 고주파 잡음 발생회로NSF: High Frequency Noise Generation Circuit

본 고안은 형광등에 있어서 안정기를 반도체로 제작하여 100-200V의 전력을 집접 정류하여 완전직류화하고 이것을 높은 주파수로 형광등을 점등하는 형광등의 전자식 안정기에 관한 것이다.The present invention relates to an electronic ballast of fluorescent lamps in which a ballast is made of a semiconductor in a fluorescent lamp, the rectification of 100-200V power is rectified and fully rectified, and the fluorescent lamp is turned on at a high frequency.

종래의 전자식 형광등의 안정기는 자려식발진을 쓰고 있으므로 회로는 간단하나 관구의 노화에 대응치 못해 사고의 위험이 있으며 사용장소의 온도에 특히 민감하여 주위 온도에서 일어나는 열폭주 현상에는 안정기의 반도체가 견디질 못하여 위험점에 급히 도달하는 현상이 있었으며 제조과정에서 성능이 균일하게 하기가 어려워 다시 조정해야 하는 번거로움이 있었다.The ballast of the conventional electronic fluorescent lamp uses a self-excited oscillation, so the circuit is simple, but there is a risk of accidents because it cannot cope with aging of the tube. There was a problem of reaching the danger point in a hurry, and it was difficult to adjust the performance because it was difficult to achieve uniform performance during the manufacturing process.

이와 같은 단점을 해결하기 위한 본 고안은 고주파 잡음방지회로와 배전압 회로와 일반 형광등의 안정기의 역활을 하는 충·방전 전류 통로상의 초크인 초크코일과 콘덴서 및 다이악의 충·방전전압이 스위칭 소자인 트랜지스터를 형광구에 연결하여 제작상 성능이 균일함으로서 생산이 편해지고 주위온도의 열폭주에도 견디며 절전의 효과까지 얻을 수 있는 것으로 이를 첨부된 도면에 의해 상세히 설명하면 다음과 같다.In order to solve the above disadvantages, the present invention is a choke coil and a charge and discharge voltage of a choke coil and a capacitor and a diak in a charge and discharge current path that functions as a high frequency noise suppression circuit, a double voltage circuit and a ballast of a general fluorescent lamp. By connecting the transistor to the fluorescent bulb, the production performance is uniform, the production is easy, and it can withstand the thermal runaway of the ambient temperature and can obtain the effect of power saving. This will be described in detail with reference to the accompanying drawings.

형광등에 있어서, 교류전원 100V-200V가 입력전원의 양측(a)·(b)을 통해 고주파 잡음 방지회로(NSF)를 거쳐 일측은 퓨우즈(FS)를 거쳐 100V·200V의 선택스위치(SW)로 연결되고 100V의 경우는 배전압 정류작용과 브릿지 양파정류의 작용을 하는 전해 콘덴서(C4) (C5)에 연결하고 200V의 경우에는 정류기(D5) (D6)에 연결하여 고주파 잡음 방지회로(NSF)의 타측이 연결된 정류기(D3) (D4)와 콘덴서(C2) (C3)까지의 배전압회로(2)에서 입력전압은 약 260V의 직류로 되어 +전압(C)은 트랜스(T)의 일차권선(g) (h)을 거쳐 트랜지스터(TR2)의 콜렉터측에 연결하고 -전압(d)은 트랜스(T)의 이차권선(j) (i)를 거쳐 트랜지스터(TR1)의 베이스와 에미터측을 동시에 연결한다.In fluorescent lamp, AC power supply 100V-200V passes high frequency noise prevention circuit (NSF) through both sides (a) and (b) of input power supply, and one side passes through fuse (FS) and selects switch (SW) of 100V / 200V. High voltage noise is connected to the electrolytic capacitor (C 4 ) (C 5 ), which acts as a double voltage rectifier and bridge onion rectification for 100V, and to a rectifier (D 5 ) (D 6 ) for 200V. In the double-circuit circuit (2) to the rectifier (D 3 ) (D 4 ) and the capacitor (C 2 ) (C 3 ) to which the other side of the prevention circuit (NSF) is connected, the input voltage is about 260V DC and the + voltage (C ) Is connected to the collector side of the transistor TR 2 via the primary winding g of the transformer T and h, and the voltage d passes through the secondary winding j of the transformer T, Connect the base of (TR 1 ) and the emitter side at the same time.

또 고주파 잡음 방지회로(NSF)의 타측은 저항(Ro)과 콘덴서(Co)의 병렬접속에서 충전되어 다이악(DA)을 통해 역류 방지용 저항(R1)을 거쳐 스윗칭 회로인 트랜지스터(TR1)의 베이스측에 가해진다.The other side of the high frequency noise prevention circuit NSF is charged in parallel connection of the resistor Ro and the capacitor Co, and is a switching circuit TR 1 which is a switching circuit via the reverse flow prevention resistor R 1 through the diaak DA. ) Is applied to the base side.

트랜지스터(TR1)의 콜렉터에서 트랜스(T)의 일차권선(e) (f)을 거쳐 트랜지스터(TR2)의 에미터에 연결하고 트랜지스터(TR2)의 베이스는 역류방지용 저항(R2)을 거쳐 트랜스(T)의 이차권선(k) (l)을 거쳐 형광등의 안정기 역할을 하는 충·방전 전류 통로상의 초크인 초크코일(CH)을 거쳐 형광구(1)의 필라멘트(F1)에 연결하고 초크코일(CH)이 다른 권선은 형광구(1)의 필라멘트(F2)에 연결한 것이다. 미설명 부호 D1, D2는 트랜지스터(TR1), (TR2)의 에미터와 콜렉터 사이에 연결한 다이오드. C1는 양 필라메트(F1) (F2)의 입력선간을 연결한 콘덴서이다.The collector of transistor TR 1 connects to the emitter of transistor TR 2 via the primary winding e (f) of transformer T, and the base of transistor TR 2 connects a backflow preventing resistor R 2 . Via the secondary winding (k) (l) of the transformer (T) to the filament (F 1 ) of the fluorescent bulb (1) via the choke coil (CH), a choke on the charge / discharge current path acting as a stabilizer for fluorescent lamps. And the other winding choke coil (CH) is connected to the filament (F 2 ) of the fluorescent sphere (1). Reference numerals D 1 and D 2 are diodes connected between the emitter and the collector of the transistors TR 1 and TR 2 . C 1 is a condenser connected between the input lines of both filaments (F 1 ) (F 2 ).

이와 같은 본 고안은 초기의 트랜지스터(TR2)은 베이스에 바이어스 전압이 없기 때문에 OFF상태(정지상태)이고 트랜지스터(TR1)는 트랜지스터(TR2)에서 흐르는 전류에 의해 작동하게 되어 있으므로 OFF상태이다. 저항(Ro)의 증가함에 따라 콘덴서(Co)에서 다이악(DA)의 정격 전압까지의 전압까지 충전하여 다이악(DA)을 통해서 흐르는 전류 펄스는 트랜지스터(T1)의 베이스에 인가된다. 또한 병렬로 접속된 저항(Ro)과 콘덴서(Co)는 역바이어스를 할 수 있게 일부로 파형을 찌그러트리는 역할을 한다.In the present invention, the initial transistor TR 2 is in an OFF state (stop state) because there is no bias voltage at the base, and the transistor TR 1 is in an OFF state because it is operated by a current flowing in the transistor TR 2 . . As the resistance Ro increases, a current pulse flowing through the diaak DA by charging up to a voltage from the capacitor Co to the rated voltage of the diaak DA is applied to the base of the transistor T 1 . In addition, the resistor Ro and the capacitor Co connected in parallel distort the waveform to partially reverse the bias.

이와같이 파형을 찌그러트림으로써 트랜지스터(TR1) (TR2)의 베이스에 충분한 구동전력을 가하고 주기가 바뀐 다음 콘덴서(Co)의 방전전압으로 OV점을 넘어서 지금까지 ON상태로 동작한 트랜지스터(TR1) (TR2)에 깊은 역 바이어스로 OFF가 신속히 이루어진다. 베이스 주기의 한순간의 신호가 정(正)인 +전압이 트랜지스터(TR1)와 트랜스의 권선(i) (j)에 가해지면 트랜지스터(TR1)은 ON, 트랜지스터(TR2)는 OFF된다.By distorting the waveform in this way, a sufficient driving power is applied to the base of the transistors TR 1 (TR 2 ), the period is changed, and the transistors that have been operated in the ON state so far beyond the OV point by the discharge voltage of the capacitor Co (TR 1). OFF quickly due to a deep reverse bias at (TR 2 ). When the signal of one point of the base period information (正) the + voltage is applied to the transistor (TR 1) and the winding (i) (j) of the transformer transistor (TR 1) is ON, transistor (TR 2) is OFF.

입력의 주기가 바뀌어서 대드타임으로 되면 제 2 (b)도의 파형의 쉼으로 OFF기간이 길고 주기신호의 극성이 바뀌므로 트랜지스터(TR2)가 ON된다. 트랜지스터(TR1) (TR2)가 전류를 흘리기 시작하면 트랜스(T)의 1차권선의 자력선이 2차권선에 영향을 주어 급속히 전류를 증강하는 쪽으로 증가되며 ON의 시간을 강하고 짧게 보조해주는 방향으로 결합되어 있다.When the period of the input is changed and becomes the dead time, the transistor TR 2 is turned on because the OFF period is long due to the rest of the waveform of FIG. 2 (b) and the polarity of the periodic signal is changed. When the transistor TR 1 (TR 2 ) starts to flow current, the magnetic force line of the primary winding of the transformer T increases to rapidly increase the current by influencing the secondary winding and strongly and shortly supports the ON time. Are combined.

트랜지스터(TR1)의 베이스 신호가 끊어지고 트랜지스터(TR2)에 역바이스가 걸리고 OFF되면 트랜지스터(TR1)는 역바이어스에서 풀리고 대드타임 주기가 바뀌어 트랜지스터(TR1)에 정트랜지스터(TR2)에 역이 가해지며 되풀이 된다.When the base signal of the transistor (TR 1) is broken and take the station device to the transistor (TR 2) OFF the transistor (TR 1) is unwound in reverse bias change is daedeu time period transistor (TR 1) to the positive transistor (TR 2) Is reversed and repeated.

그리고 트랜지스터(TR1)와 트랜지스터(TR2)의 전원공급이 틀리므로 전원은 콘덴서(C3)를 통해 콘덴서(C4)를 충전시켜며 형광구(1)의 콘덴서(C1)을 분류하여 초크코일(CH)를 흘러 트랜스(7)의 권선(e) (f)을 통해 트랜지스터(TR1)의 콜렉터에 흐르므로 에미터로 출력된다.Since the power supply of the transistors TR 1 and TR 2 is different, the power source charges the capacitor C 4 through the capacitor C 3 and classifies the capacitor C 1 of the fluorescent bulb 1. The choke coil (CH) flows through the winding (e) (f) of the transformer (7) to the collector of the transistor TR 1 and is output to the emitter.

주기가 바뀌어 트랜지스터(TR1)가 OFF되고 트랜지스터(TR2)가 ON되면 +전원이 트랜지스터(TR2)의 콜렉터에 흘러 트랜지스터(TR1)의 에미터로 도통되나 트랜지스터(TR1)가 OFF상태이므로 전류통로가 막혀 초크코일(CH)을 통해 일부는 콘덴서(C1) (C2)를 충전하고 출력된다.When the change period is a transistor (TR 1) is OFF, and the transistor (TR 2) ON + power transistor (TR 2), but to the emitter of the flow transistor (TR 1) to the collector the conduction of the transistor (TR 1) OFF state Therefore, the current path is blocked, and some of the capacitors (C 1 ) (C 2 ) are charged and output through the choke coil (CH).

이와같이 트랜지스터(TR1) (TR2)가 교대로 도통되면서 ON. OFF를 높은 주기에서 반복되면서 형광구(1)를 점등하여 OFF되는 시간만큼 전력을 절약할 수 있으며 주위온도의 열폭주에도 견디고 생산에 간단한 것이다.In this way, the transistors TR 1 (TR 2 ) are turned on alternately. It is possible to save power by turning off the fluorescent bulb (1) while turning OFF at a high cycle, and to withstand the thermal runaway of the ambient temperature, and is simple to produce.

Claims (1)

형광등에 있어서 입력전원의 양측(a) (b)은 고주파 잡음 방지회로(NSF)를 거쳐 일측은 선택스위치(SW)를 거치고 배전압 회로(2)에 연결하여 +전압(C)은 트랜스(T)의 일차권선(g) (h)를 거쳐 트랜지스터(TR2)의 콜렉터에 연결하고 -전압(d)은 트랜스(T)의 2차권선(j) (i)을 거쳐 저항(R1)을 통해 트랜지스터(TR1)의 베이스와 에미터에 연결하며 배전압회로(2)에도 연결된 타측은 저항(Ro)과 콘덴서(Co)의 병렬접속을 거쳐 다이악(DA)를 통해 트랜지스터(TR1)의 베이스에 연결하고 트랜지스터(TR1)의 콜렉터에서 트랜스(T)의 이차 코일(k) (l)을 통해 양측이 형광구(1)의 양 필라멘트(F1) (F2)에 연결된 초크코일(CH)에 연결한 형광등의 전자식 안정기.In fluorescent lamps, both sides (a) and (b) of the input power supply are connected to the high voltage noise suppression circuit (NSF), one side is the selection switch SW, and is connected to the double voltage circuit (2). Is connected to the collector of transistor (TR 2 ) via primary winding (g) (h), and-voltage (d) is connected to resistor (R 1 ) via secondary winding (j) (i) of transformer (T). The other side, which is connected to the base and emitter of the transistor TR 1 , and is also connected to the double voltage circuit 2, is connected through the parallel connection of the resistor Ro and the capacitor Co, and through the diaak DA through the transistor TR 1 . Choke coil connected to the base of and connected to both filaments (F 1 ) (F 2 ) of fluorescent bulb (1) through the secondary coil (k) (l) of transformer (T) at the collector of transistor (TR 1 ) Electronic ballast of fluorescent lamp connected to (CH).
KR2019850007842U 1985-06-25 1985-06-25 Electronic ballast of fluorescent lamp KR880002936Y1 (en)

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Application Number Priority Date Filing Date Title
KR2019850007842U KR880002936Y1 (en) 1985-06-25 1985-06-25 Electronic ballast of fluorescent lamp

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KR2019850007842U KR880002936Y1 (en) 1985-06-25 1985-06-25 Electronic ballast of fluorescent lamp

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KR870001392U KR870001392U (en) 1987-02-20
KR880002936Y1 true KR880002936Y1 (en) 1988-08-13

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