KR20010016094A - fluorescent lamp controller - Google Patents

fluorescent lamp controller Download PDF

Info

Publication number
KR20010016094A
KR20010016094A KR1020000064761A KR20000064761A KR20010016094A KR 20010016094 A KR20010016094 A KR 20010016094A KR 1020000064761 A KR1020000064761 A KR 1020000064761A KR 20000064761 A KR20000064761 A KR 20000064761A KR 20010016094 A KR20010016094 A KR 20010016094A
Authority
KR
South Korea
Prior art keywords
over
current
voltage
circuit
fluorescent lamp
Prior art date
Application number
KR1020000064761A
Other languages
Korean (ko)
Inventor
김기대
Original Assignee
김기대
주식회사 엘텍코리아
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김기대, 주식회사 엘텍코리아 filed Critical 김기대
Priority to KR1020000064761A priority Critical patent/KR20010016094A/en
Publication of KR20010016094A publication Critical patent/KR20010016094A/en

Links

Classifications

    • 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
    • H05B41/282—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
    • H05B41/2821—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 by means of a single-switch converter or a parallel push-pull converter in the final stage
    • H05B41/2824—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 by means of a single-switch converter or a parallel push-pull converter in the final stage using control circuits for the switching element
    • 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
    • H05B41/2981—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions

Abstract

PURPOSE: An apparatus for controlling operation of fluorescent lamp is provided to achieve prevention against insufficient initial pre-heating time, noise caused by switching, and damage to devices caused by over-current and over-voltage. CONSTITUTION: An apparatus comprises an initial pre-heating time delay circuit(111) installed at a power supply line, switching enhancement circuits(106,107) for forcibly turning on TR1 and TR2 when the pulse of pulse transformers(T1,T2) is changed from "on" to "off", so as to prevent heat generation and loss caused by the noise current produced between driving transistors(FE1,FET2), a noise reduction circuit(110), over-voltage detection circuits(C2,R8) for preventing erroneous operation of the device caused by over-voltage, an over-voltage protection circuit(102) for comparing the over-voltage and a predetermined voltage, an over-current detection circuit(108) for protecting the device from over-current, an over-current protection circuit(103) for comparing the over-current and a predetermined current, and a pulse signal generating IC(109) which stops operation when an abnormality is detected from the result of comparison performed by the over-voltage protection circuit and the over-current detection circuit.

Description

형광등제어장치{fluorescent lamp controller}Fluorescent lamp controller

본 발명은 인버터제어장치가 가지는 제 단점인 초기 예열 시간의 부조, 스위칭으로 인한 노이저의 발생, 과전압 및 과전류에 의한 장치의 소손등을 제거함을 그 목적으로 한다.The object of the present invention is to eliminate the disadvantages of the initial preheating time, the generation of the noise due to switching, the burnout of the device due to overvoltage and overcurrent, which are the disadvantages of the inverter control apparatus.

본 발명은 조명용 인버터형광등 제어장치에 속하는 것으로 종래의 기술에서는 인버터제어장치가 가지는 성 에너지절약 등의 많은 장점에도 불구하고 상기에서와 같은 제 단점을 합리적으로 극복하지 못하고 있었다.The present invention belongs to the lighting inverter fluorescent lamp control device in the prior art, despite the many advantages such as the energy saving of the inverter control device has not reasonably overcome the above disadvantages.

본 발명에서는 인버터회로의 스위칭기능의 개선, 스위칭노이즈 감소, 초기 예열시간의 확보, 과전압 및 과전류에 대한 보호회로 설치를 통하여 상기의 인버터제어장치가 가지는 제 단점을 극복하고자 함을 기술적 과제로 한다.The present invention aims to overcome the disadvantages of the inverter control apparatus by improving the switching function of the inverter circuit, reducing switching noise, securing an initial preheating time, and installing a protection circuit against overvoltage and overcurrent.

도 1은 본 발명을 포함한 인버터형광등제어회로의 회로도1 is a circuit diagram of an inverter fluorescent lamp control circuit including the present invention

〈도면의 주요부분에 대한 부호 설명〉<Explanation of symbols on main parts of the drawing>

101 : 브리지정류기 102 : 전압비교회로101: bridge rectifier 102: voltage comparison

103 : 전류비교회로 104 : OR게이트 IC103: current comparison church 104: OR gate IC

105 : 펄스트랜스구동용 TR105: TR for pulse transformer driving

106, 107 : 턴 오프 시간을 단축시키는 개선된 펄스회로106, 107: improved pulse circuit for short turn-off time

108 : 과도현상으로 인한 오동작 및 노이즈억제기능이 있는 전류검출회로108: Current detection circuit with malfunction and noise suppression function due to transient

C2, R8 : 과도현상으로 인한 오동작 및 노이즈억제기능이 있는 전압검출회로C2, R8: Voltage detection circuit with noise suppression and malfunction due to transient

109 : 펄스신호 발생용 IC109: pulse signal generating IC

110 : 노이즈 제거회로 111 : 초기 예열 시간연장회로110: noise reduction circuit 111: initial preheat time extension circuit

A : 인버터구동용 직류 +전원 B : 인버터구동용 직류 -전원A: Inverter drive DC + Power B: Inverter drive DC-Power

VCC : 제어회로 직류 +전원 VCC- : 제어회로 직류 -전원VCC: Control circuit DC + Power VCC-: Control circuit DC-Power

본 발명의 구성을 첨부한 도 1에 따라 설명하면 다음과 같다.Referring to Figure 1 attached to the configuration of the present invention as follows.

전자식형광등제어장치의 결점인 초기 점등 시 예열시간의 부족을 방지하기 위하여 제어회로의 전원 공급라인에 111과 같은 R, C의 지연 회로를 두어 충분한 초기 예열 시간을 얻을 수 있도록 하였으며, 인버터회로에서 구동 트랜지스터(FET1, FET2)의 턴 오프 시 오프시간의 지연으로 인하여 FET1과 FET2 사이에 발생하는 노이즈 전류로 인한 열 발생과 손실을 방지하기 위하여 T1, T2(펄스트랜스)의 펄스가 온에서 오프로 바뀌면 TR1, TR2가 강제로 온 되도록 턴 오프 시간 단축회로를 106, 107과 같이 설치하였다. 따라서 오프신호가 들어오면 각 TR(TR1, TR2)의 코렉터와 에미터가 포화로 인하여 전위 차가 낮아지게 되는데 이는 곧 FET의 게이트와 소스 사이의 전압으로 FET는 게이트전압의 저하로 곧 턴 오프 하게되어 각 FET는 노이즈 전류로 인한 열 발생과 이로 인한 소손 등의 피해를 막을 수 있도록 하였으며, 과 전압이 발생 할 경우 장치를 보호하기 위하여 검출회로(C2, R8 [과도현상으로 인한 오동작 및 노이즈억제기능이 있는 전압검출회로])를 설치하여 이를 설정치와 비교하여(102) 이상이 있으면 펄스신호 발생용 IC(109)가 정지하여 장치를 보호하도록 하였으며, 과 전류가 발생 할 경우 장치를 보호하기 위하여 검출회로(108 [과도현상으로 인한 오동작 및 노이즈억제기능이 있는 전류검출회로])를 설치하여 이를 설정치와 비교하여(103) 이상이 있으면 펄스신호 발생용 IC(109)가 정지하여 장치를 보호하도록 구성 된 장치이다.In order to prevent the shortage of preheating time during initial lighting, which is a fault of the electronic fluorescent lamp control device, a delay circuit of R and C such as 111 is provided in the power supply line of the control circuit so that sufficient initial preheating time can be obtained. When the transistors FET1 and FET2 are turned off, the pulses of T1 and T2 (pulse trans) are turned on from off to prevent heat generation and loss due to the noise current generated between FET1 and FET2 due to the delay of the off time. Turn-off time reduction circuits were installed as 106 and 107 so that TR1 and TR2 were forcibly turned on. Therefore, when the off signal comes in, the potential difference decreases due to the saturation of the collector and emitter of each TR (TR1, TR2), which is a voltage between the gate and the source of the FET. Each FET prevents damages such as heat generation and burnout caused by noise current.In order to protect the device in case of overvoltage, detection circuits (C2, R8 [Malfunction due to transient and noise suppression function are provided. Voltage detection circuit]) and comparing it with the set value (102), if there is an error, the pulse signal generation IC 109 stops to protect the device. (108 [current detection circuit with noise suppression and noise suppression function due to transient phenomenon]) is installed and compared with the set value (103), if there is more than Is a device configured IC (109) for so as to protect the device is stopped.

이 상에서와 같이 본 발명의 제품은 인버터형광등제어장치에서 일어나는 제 문제점을 보완하는 것으로 결과로 제품의 수명 및 신뢰성에 크게 기여하므로 상품의 고급화와 아울러 상품의 경쟁력 제고에 크게 기여하리라 사료됨.As described above, the product of the present invention compensates for the problems that occur in the inverter fluorescent lamp control device, and consequently contributes greatly to the life and reliability of the product.

Claims (3)

인버터형광등제어장치에서 초기 점등 시 예열시간의 부족을 방지하기 위하여 제어회로의 전원 공급라인에 111과 같은 R, C의 지연 회로, 턴 오프 시간을 단축시키는 개선된 펄스회로(106, 107), 과 전압 보호를 위한 검출회로(C2, R8) 및 이를 설정치와 비교하여(102) 이상이 있으면 펄스신호 발생용 IC(109)가 정지하여 장치를 보호하도록 하며, 과 전류보호를 위한 검출회로(108) 및 이를 설정치와 비교하여 (103) 이상이 있으면 펄스신호 발생용 IC(109)가 정지하여 장치를 보호하도록 구성 된 인버터형광등제어장치.In order to prevent the lack of preheating time during initial lighting in the inverter fluorescent lamp control device, the delay circuit of R and C as 111, the improved pulse circuit 106 and 107, which shortens the turn-off time, The detection circuits C2 and R8 for voltage protection and comparing them with the set value (102), if there is more than 102, the pulse signal generation IC 109 is stopped to protect the device, the detection circuit 108 for overcurrent protection And an inverter fluorescent light control device configured to protect the device by stopping the pulse signal generation IC 109 when there is more than 103 in comparison with the set value. 인버터형광등제어장치에서 턴 오프 시간을 단축시키기 위하여 개선된 펄스회로(106, 107)를 갖는 구조로 구성된 인버터형광등제어장치.An inverter fluorescent light control device having a structure having an improved pulse circuit (106, 107) to shorten the turn-off time in the inverter fluorescent light control device. 인버터형광등제어장치에서 과 전압 보호를 위한 검출회로(C2, R8) 및 이를 설정치와 비교하여(102) 이상이 있으면 펄스신호 발생용 IC(109)가 정지하여 장치를 보호하도록 하며, 과 전류 보호를 위한 검출회로(108) 및 이를 설정치와 비교하여 (103) 이상이 있으면 펄스신호 발생용 IC(109)가 정지하여 장치를 보호하도록 구성된 인버터형광등제어장치.In the inverter fluorescent lamp control device, if the detection circuit (C2, R8) for overvoltage protection and the set value are more than 102, the pulse signal generation IC 109 stops to protect the device. Inverter fluorescent lamp control device configured to protect the device by stopping the pulse signal generation IC (109) if there is more than (103) compared with the detection circuit 108 and the set value.
KR1020000064761A 2000-11-01 2000-11-01 fluorescent lamp controller KR20010016094A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020000064761A KR20010016094A (en) 2000-11-01 2000-11-01 fluorescent lamp controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020000064761A KR20010016094A (en) 2000-11-01 2000-11-01 fluorescent lamp controller

Publications (1)

Publication Number Publication Date
KR20010016094A true KR20010016094A (en) 2001-03-05

Family

ID=19696774

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020000064761A KR20010016094A (en) 2000-11-01 2000-11-01 fluorescent lamp controller

Country Status (1)

Country Link
KR (1) KR20010016094A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100811837B1 (en) * 2006-08-29 2008-03-10 엘지이노텍 주식회사 Inverter protection circuit

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR870008488A (en) * 1986-02-10 1987-09-26 하야시바라 겡 Inrush current limiting device
JPH06176883A (en) * 1992-12-09 1994-06-24 S I Electron:Kk Fluorescent lamp lighting device
KR950007633U (en) * 1993-08-26 1995-03-21 박광필 Ballast protection circuit for electronic fluorescent lamp
KR19980065806A (en) * 1997-01-15 1998-10-15 정태홍 Illuminance control device of fluorescent lamp by pulse width modulation
KR20000007563A (en) * 1998-07-04 2000-02-07 김중성 Electronic stabilizer for high voltage discharging light using micro processor
EP1077591A2 (en) * 1999-08-19 2001-02-21 Osram Sylvania Inc. Apparatus for a high intensity gas discharge lamp ballast

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR870008488A (en) * 1986-02-10 1987-09-26 하야시바라 겡 Inrush current limiting device
JPH06176883A (en) * 1992-12-09 1994-06-24 S I Electron:Kk Fluorescent lamp lighting device
KR950007633U (en) * 1993-08-26 1995-03-21 박광필 Ballast protection circuit for electronic fluorescent lamp
KR19980065806A (en) * 1997-01-15 1998-10-15 정태홍 Illuminance control device of fluorescent lamp by pulse width modulation
KR20000007563A (en) * 1998-07-04 2000-02-07 김중성 Electronic stabilizer for high voltage discharging light using micro processor
EP1077591A2 (en) * 1999-08-19 2001-02-21 Osram Sylvania Inc. Apparatus for a high intensity gas discharge lamp ballast

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100811837B1 (en) * 2006-08-29 2008-03-10 엘지이노텍 주식회사 Inverter protection circuit

Similar Documents

Publication Publication Date Title
US4958121A (en) Protection of power converters from voltage spikes
KR930003176B1 (en) Electronic circuit device
JP4313658B2 (en) Inverter circuit
US7489531B2 (en) Inverter with improved overcurrent protection circuit, and power supply and electronic ballast therefor
TWI650922B (en) Half bridge circuit driving chip with protection circuit and protection method thereof
KR20010016094A (en) fluorescent lamp controller
US5341284A (en) Power-saving power supply unit
KR100329386B1 (en) Gate drive circuit for IGBT degauss
KR20010108645A (en) Protect circuit of inverter for backlight of liquid crystal display device
KR100398000B1 (en) Apparatus for gate driving for controlling of Insulated Gate Bipolar Transistor dual module
KR100347174B1 (en) Protection circuit of SMPS
JPH08228473A (en) Protective circuit of switching power source
KR20080112704A (en) Over voltage protection circuit
JP2002165445A (en) Power supply unit
KR920006440Y1 (en) Neon lamp lighting control device
KR19990031364U (en) Overvoltage Protection Circuit of Switching Mode Power Supply
KR920008472B1 (en) Exposure lamp protecting circuits for copying machine
KR950002408Y1 (en) Timing delay circuit
KR100895014B1 (en) Over current protecting circuit in ringer power
JP3102558B2 (en) Thyristor valve
KR900009472Y1 (en) Over voltage protective circuit
JPH11289654A (en) Circuit for protecting switching power from overcurrent
KR19990033905A (en) Gate Drive of Inverter for Motor
JP2962016B2 (en) Power protection circuit
JPH11113265A (en) Invfrter device

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E902 Notification of reason for refusal
E601 Decision to refuse application