KR100318995B1 - Timing Control Circuit - Google Patents
Timing Control Circuit Download PDFInfo
- Publication number
- KR100318995B1 KR100318995B1 KR1019980055426A KR19980055426A KR100318995B1 KR 100318995 B1 KR100318995 B1 KR 100318995B1 KR 1019980055426 A KR1019980055426 A KR 1019980055426A KR 19980055426 A KR19980055426 A KR 19980055426A KR 100318995 B1 KR100318995 B1 KR 100318995B1
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- current
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- photo coupler
- changing
- 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
- H05B41/36—Controlling
- H05B41/38—Controlling the intensity of light
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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
- H05B41/288—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 without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
- H05B41/2885—Static converters especially adapted therefor; Control thereof
- H05B41/2887—Static converters especially adapted therefor; Control thereof characterised by a controllable bridge in the final stage
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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
- H05B41/288—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 without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
- H05B41/292—Arrangements for protecting lamps or circuits against abnormal operating conditions
- H05B41/2921—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
- H05B41/2923—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against abnormal power supply conditions
Abstract
본 발명은 전자식 안정기 등에 사용되는 딤밍 콘트롤 회로에 관한 것으로, 전원 입력시 포토 커플러의 파손을 방지하기 위해 역전류를 차단하고 정전류만 통과시키는 전류 제어부와, 상기 전류 제어부로부터 유입된 전류에 의해 전압강하를 발생시키는 포토 커플러와, 상기 포토 커플러의 전류값에 따라 저항값이 가변되어 드라이버 IC의 발진 주파수를 변화시키기 위한 시정수 회로부와, 상기 주파수로 변화된 전류를 증폭하고 증폭한 전류를 주파수로 변화시켜 출력하는 하프 브리지부와, 상기 주파수에 따라 공진값이 변화되어 램프에 흐르는 전류를 가감시키기 위한 전류 가감부를 포함하는 것을 그 특징으로 한다.The present invention relates to a dimming control circuit used in an electronic ballast, etc., to prevent damage of a photo coupler during power input, a current controller for blocking a reverse current and passing only a constant current, and a voltage drop due to a current flowing from the current controller. A photo coupler for generating a voltage, a resistance value varies according to the current value of the photo coupler, a time constant circuit part for changing the oscillation frequency of the driver IC, and amplifying the current changed to the frequency and changing the amplified current to a frequency. And a half-bridge portion for outputting and a current adding-and-dropping portion for modulating the current flowing through the lamp by changing the resonance value according to the frequency.
이상에서와 같이 본 발명은, 별도의 취침 조명 없이도 램프에 흐르는 전류를 가감하여 취침시 적절한 조광이 이루어지게 하므로서 최소 50 ％ 이상의 절전 효과를 제공하는데 있다.As described above, the present invention provides a power saving effect of at least 50% by adding or subtracting a current flowing through a lamp to perform proper dimming when going to bed without a separate sleeping light.
Description
본 발명은 전자식 안정기(electronic ballast) 등에 사용되는 딤밍(Dimming)콘트롤 회로에 관한 것으로, 특히 별도의 취침 조명 없이도 램프에 흐르는 전류를 가감하여 취침시 적절한 조광이 이루어지게 하는 딤밍 콘트롤 회로에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dimming control circuit used in an electronic ballast and the like, and more particularly, to a dimming control circuit in which proper dimming is performed at bedtime by adding or subtracting a current flowing through a lamp without a separate sleeping light.
일반적으로, 전자식 안정기는 방전관 또는 관내에서 이온화하여 생기는 전자가 다른 원자 또는 분자를 이온화하고 이것이 누적적으로 진행하여 장치가 고장까지 이어지지 않도록 적당한 이온화 작용으로 억제하기 위하여 방전로를 포함하는 회로에 사용하는 장치로서, 안정기는 단독 혹은 시동기와 조합하여 사용한다.In general, an electronic ballast is used in a circuit including a discharge furnace in order to suppress electrons generated by ionizing in a discharge tube or tube by proper ionization action so that the electrons ionize other atoms or molecules, which do not accumulate and lead to failure. As a device, ballasts may be used alone or in combination with starters.
현재 사용하고 있는 전자식 안정기는 에너지 절약형으로서, 약 25∼30 ％ 절감 효과를 가지고 있다.Currently used electronic ballasts are energy-saving and have an effect of saving about 25-30%.
또한 현재의 전자식 안정기는 취침시 적절한 조광이 이루어지지 않아 별도의 취침 조명이 필요로 하고 있다.In addition, current electronic ballasts do not have proper dimming when going to bed, and thus requires separate bedtime lighting.
또한 현재의 전자식 안정기는 취침시 조명밝기가 눈에 미치는 영향이 매우 크므로 눈이 피로하지 않도록 적절한 밝기의 조명조절이 필요하다.In addition, the current electronic ballast has a very large effect on the eyes of the brightness of the light when sleeping, it is necessary to adjust the brightness of the appropriate brightness so as to avoid eye fatigue.
따라서 본 발명은 상기와 같은 종래의 제반 문제점을 해결하고자 이루어진 것으로서, 그 목적은 별도의 취침 조명 없이도 램프에 흐르는 전류를 가감하여 취침시 적절한 조광이 이루어지게 하므로서, 최소 50 ％ 이상의 에너지 절전 효과를 가져올 수 있게 하는 딤밍 콘트롤 회로를 제공하는데 있다.Therefore, the present invention has been made to solve the conventional problems as described above, its purpose is to reduce the current flowing through the lamp without a separate bedtime lighting to achieve a proper dimming when going to bed, bringing energy saving effect of at least 50% or more It is to provide a dimming control circuit that allows.
상기의 목적을 달성하고자 본 발명의 딤밍 콘트롤 회로는, 전원 입력시 포토 커플러의 파손을 방지하기 위해 역전류를 차단하고 정전류만 통과시키는 전류 제어부와, 상기 전류 제어부로부터 유입된 전류에 의해 전압강하를 발생시키는 포토 커플러와, 상기 포토 커플러의 전류값에 따라 저항값이 가변되어 드라이버 IC의 발진 주파수를 변화시키기 위한 시정수 회로부와, 상기 주파수로 변화된 전류를 증폭하고 증폭한 전류를 주파수로 변화시켜 출력하는 하프 브리지부와, 상기 주파수에 따라 공진값이 변화되어 램프에 흐르는 전류를 가감시키기 위한 전류 가감부를 포함하는 것을 그 특징으로 한다.In order to achieve the above object, the dimming control circuit of the present invention includes a current controller for blocking a reverse current and passing only a constant current to prevent damage of a photo coupler when a power supply is input, and a voltage drop due to a current flowing from the current controller. A photocoupler to generate, a time constant circuit portion for changing the oscillation frequency of the driver IC by varying the resistance value according to the current value of the photocoupler, and amplifying the current changed by the frequency and changing the amplified current to frequency It characterized in that it comprises a half bridge portion and a current adding and lowering portion for adjusting the current flowing through the lamp by changing the resonance value according to the frequency.
바람직하게, 상기 전류제어부는 전원 입력시 역전류를 차단하고 정전류만 통과시키는 다이오드를 포함하는 것을 그 특징으로 한다.Preferably, the current control unit is characterized in that it comprises a diode that blocks the reverse current at the time of power input and passes only a constant current.
바람직하게, 상기 포토 커플러는 발광소자와 수광소자로 이루어진 것을 그 특징으로 한다.Preferably, the photo coupler is characterized in that consisting of a light emitting element and a light receiving element.
바람직하게, 상기 시정수 회로부는 ###콘덴서를 고정시킨 상태에서 저항값을 가변하여 주파수 변화를 얻게 하는 저항 및 콘덴서를 포함하는 것을 그 특징으로 한다.Preferably, the time constant circuit unit is characterized in that it comprises a resistor and a capacitor to obtain a frequency change by varying the resistance value in the state of holding the # # # capacitor.
바람직하게, 상기 전류 가감부는 주파수에 따라 공진값이 변화되어 램프의 전류값을 감소시키는 트랜스 포머를 포함하는 것을 그 특징으로 한다.Preferably, the current adding and reducing unit is characterized in that it comprises a transformer for changing the resonance value according to the frequency to reduce the current value of the lamp.
도 1은 본 발명에 의한 딤밍 콘트롤 회로도.1 is a dimming control circuit diagram according to the present invention.
도면의 주요 부분에 대한 부호의 설명Explanation of symbols for the main parts of the drawings
100:전류제어부 200:포토 커플러100: current control unit 200: photo coupler
300:시정수 회로부 400:드라이버 IC300: time constant circuit portion 400: driver IC
500:하프 브리지부 600:FET 보호 회로부500: half bridge portion 600: FET protection circuit portion
700:전류 가감부 D1:다이오드700: current regulating unit D1: diode
R1:제 1 저항 R2:제 2 저항R1: first resistor R2: second resistor
C1:콘덴서C1: capacitor
본 발명의 바람직한 실시예에 대하여 상세히 설명하기로 한다.Preferred embodiments of the present invention will be described in detail.
이 바람직한 실시예를 통해 본 발명의 목적, 특징 및 이점을 보다 잘 이해할 수 있게 된다.This preferred embodiment enables a better understanding of the objects, features and advantages of the present invention.
이하, 첨부한 도면을 참조하여 본 발명에 의한 딤밍 콘트롤 회로의 바람직한 실시예를 상세히 설명하기로 한다.Hereinafter, exemplary embodiments of the dimming control circuit according to the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명에 의한 딤밍 콘트롤 회로도로서, 이에 도시한 바와 같이 전원 입력시 포토 커플러의 파손을 방지하기 위해 역전류를 차단하고 정전류만 통과시키는 전류 제어부(100)와, 상기 전류 제어부(100)로부터 유입된 전류에 의해 전압강하를 발생시키는 포토 커플러(200)와, 상기 포토 커플러(200)의 전류값에 따라저항값이 가변되어 드라이버 IC(400)의 발진 주파수를 변화시키기 위한 시정수 회로부(300)와, 상기 주파수로 변화된 전류를 증폭하고 증폭한 전류를 주파수로 변화시켜 출력하는 하프 브리지부(500)와, 상기 주파수에 따라 공진값이 변화되어 램프에 흐르는 전류를 가감시키기 위한 전류 가감부(700)로 구성된다.1 is a dimming control circuit diagram according to an embodiment of the present invention, as shown therein, in order to prevent damage of a photo coupler during power input, a current controller 100 for blocking a reverse current and passing only a constant current, and the current controller 100. A photo-coupler 200 for generating a voltage drop by the current introduced from the photoresist, and a time constant circuit unit for changing the oscillation frequency of the driver IC 400 by changing a resistance value according to the current value of the photo coupler 200 ( 300), a half bridge unit 500 for amplifying the current changed by the frequency and outputting the amplified current by changing the frequency, and a current adding unit for adding or subtracting a current flowing through the lamp by changing a resonance value according to the frequency. It consists of 700.
상기 전류제어부(100)는 전원 입력시 역전류를 차단하고 정전류만 통과시키는 다이오드(D1)를 포함하여 구성된다.The current control unit 100 is configured to include a diode (D1) for blocking the reverse current at the time of power input and passing only a constant current.
상기 포토 커플러(200)는 발광소자와 수광소자로 구성된다.The photo coupler 200 includes a light emitting element and a light receiving element.
상기 시정수 회로부(300)는 콘덴서(C1)를 고정시킨 상태에서 저항값을 가변하여 주파수 변화를 얻게 하는 제 1 저항(R1) 및 콘덴서(C1)로 구성된다.The time constant circuit unit 300 includes a first resistor R1 and a capacitor C1 for varying a resistance value in a state in which the capacitor C1 is fixed to obtain a frequency change.
상기 전류 가감부(700)는 주파수에 따라 공진값이 변화되어 램프의 전류값을 감소시키는 트랜스 포머(T1)로 구성된다.The current adding / reducing unit 700 is composed of a transformer (T1) to change the resonance value according to the frequency to reduce the current value of the lamp.
도면에 도시한 부호중 600은 전계효과트랜지스터(FET1),(FET2)의 보호를 위한 FET 보호 회로부이다.Reference numeral 600 in the figure denotes an FET protection circuit for protecting field effect transistors FET1 and FET2.
이와 같이 구성된 본 발명의 실시예에 따른 작용효과를 첨부한 도면을 참조하여 상세히 설명한다.With reference to the accompanying drawings, the effect of the embodiment of the present invention configured as described above will be described in detail.
먼저, 입력단(VIN)으로부터 인가된 전류는 전류제어부(100)내의 다이오드(D1)에 의해 역전류가 흐르지 못하게 하여 포터 커플러(200)의 파손을 방지하고, 이와 동시에 정전류만 포토 커플러(200) 핀(1),(2)단자의 발광소자로 유입된다.First, the current applied from the input terminal VIN prevents reverse current from flowing by the diode D1 in the current control unit 100, thereby preventing damage to the porter coupler 200, and at the same time, only the constant current pins of the photo coupler 200. It flows into the light emitting element of (1) and (2) terminals.
따라서 핀(1),(2)단자의 발광소자로 유입된 전류에 의해 포토 커플러(200)핀(3),(4)단자의 수광소자에 의해 전압강하가 발생되고, 발생된 전압강하에 의해 시정수 회로부(300)내의 제 1 저항(R1)값을 가변하므로서 드라이버 IC(400)의 발진 주파수를 변화시킨다.Therefore, the voltage drop is generated by the light receiving element of the photo coupler 200, the pins 3 and 4 by the current flowing into the light emitting element of the pins 1 and 2, and by the generated voltage drop. The oscillation frequency of the driver IC 400 is changed by varying the value of the first resistor R1 in the time constant circuit unit 300.
즉, 드라이버 IC(400)의 핀(6)단자에 연결 접속된 제 2 저항(R2)과 핀(5)단자에 연결 접속된 콘덴서(C1)의 로직 회로에 의해 R.C 결합 발진 구동방식인 관계로 콘덴서(C1)가 고정된 상태에서 제 1 저항(R1)값을 가변하므로서 드라이버 IC(400)의 발진 주파수를 변화시키게 된다.That is, since it is RC coupled oscillation driving method by the logic circuit of the second resistor R2 connected to the pin 6 terminal of the driver IC 400 and the capacitor C1 connected to the pin 5 terminal. The oscillation frequency of the driver IC 400 is changed by varying the value of the first resistor R1 while the capacitor C1 is fixed.
이와 같이 콘덴서(C1)가 고정된 상태에서 제 1 저항(R1)값을 가변하므로서 드라이버 IC(400)로부터 변화된 발진 주파수를 얻을 수 있다.As described above, the oscillation frequency can be obtained from the driver IC 400 by varying the value of the first resistor R1 while the capacitor C1 is fixed.
한편 드라이버 IC(400)로부터 주파수로 변화된 전류는 드라이버 IC(400)의 핀(8),(11)단자를 통해 하프 브리지부(500)에 입력된다.On the other hand, the current changed from the driver IC 400 to the frequency is input to the half bridge portion 500 through the pins 8 and 11 terminals of the driver IC 400.
따라서 하프 브리지부(500)는 그에 입력된 전류를 전계효과트랜지스터(FET1),(FET2)로 증폭시킨 후 주파수로 변화된 전류를 FET 보호 회로부(600)를 통해 전류 가감부(700)에 출력한다.Accordingly, the half bridge unit 500 amplifies the current input thereto to the field effect transistors FET1 and FET2 and then outputs the current changed in frequency to the current deceleration unit 700 through the FET protection circuit unit 600.
이때 전류 가감부(700)는 변화된 주파수에 따라 트랜스 포머(T1)의 공진값이 변화되고 따라서 변화된 공진값에 의해 램프(LAMP)에 흐르는 전류가 가감되어 딤밍이 이루어지게 되는 것이다.In this case, the resonant value of the transformer T1 is changed according to the changed frequency, and thus the current flowing through the lamp LAMP is added to or subtracted by the changed resonant value.
이와 같이 본 발명은, 별도의 취침 조명 없이도 램프에 흐르는 전류를 가감하여 취침시 적절한 조광이 이루어지게 하는 것이 가능하다.Thus, the present invention, it is possible to make the appropriate dimming at the time of going to bed by adding or subtracting the current flowing through the lamp without a separate bedlight.
이상에서와 같이, 본 실시에에 의하면, 기존의 전자식 안정기는 약 25∼30 ％ 의 에너지 절감 효과를 가지고 있다. 그러나 본 발명이 채택하고 있는 딤밍 콘트롤 회로를 사용할 경우 100 ％∼30 ％ 까지 가변이 되므로 최소 50 ％ 이상의 절전 효과를 제공할 수 있다.As described above, according to the present embodiment, the existing electronic ballast has an energy saving effect of about 25 to 30%. However, when the dimming control circuit employed in the present invention is used, it can vary from 100% to 30%, thereby providing a power saving effect of at least 50%.
또한 별도의 취침 조명 없이도 취침시 적절한 조광이 이루어지게 하는 효과가 있다.In addition, there is an effect that the appropriate dimming is made at bedtime without a separate bedtime lighting.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980055426A KR100318995B1 (en) | 1998-12-16 | 1998-12-16 | Timing Control Circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980055426A KR100318995B1 (en) | 1998-12-16 | 1998-12-16 | Timing Control Circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20000039928A KR20000039928A (en) | 2000-07-05 |
| KR100318995B1 true KR100318995B1 (en) | 2002-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019980055426A KR100318995B1 (en) | 1998-12-16 | 1998-12-16 | Timing Control Circuit |
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| KR (1) | KR100318995B1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100607653B1 (en) * | 2004-03-12 | 2006-08-02 | 예명환 | electric energy auto control apparatus for high voltage discharge light in electronic type ballast |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR940010863A (en) * | 1992-10-14 | 1994-05-26 | 소호성 | Zero voltage switching control circuit of electronic ballast for fluorescent lamp lighting |
| KR950007635U (en) * | 1993-08-11 | 1995-03-21 | 김종효 | Electronic fluorescent lamp safety device with remote control dimming control |
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1998
- 1998-12-16 KR KR1019980055426A patent/KR100318995B1/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR940010863A (en) * | 1992-10-14 | 1994-05-26 | 소호성 | Zero voltage switching control circuit of electronic ballast for fluorescent lamp lighting |
| KR950007635U (en) * | 1993-08-11 | 1995-03-21 | 김종효 | Electronic fluorescent lamp safety device with remote control dimming control |
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| KR20000039928A (en) | 2000-07-05 |
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