外置电极荧光灯驱动电源的研究
|
摘要
外置电极荧光灯作为冷阴极荧光灯的一种,具有无汞环保、超长寿命、低功耗高亮度、低温启动等优良性能,存在巨大的市场优势,将在未来的背景光源领域占据越来越来重要的地位。
本文介绍了外置电极荧光灯的发展背景及其电气特性;在现代逆变理论的基础上分析了Royer、半桥驱动电路的工作原理,给出了参数设计,并制作了原理样机。本论文的主要任务就是在不同输入电压下,研究外置电极荧光灯的驱动电源。
在直流16V～24V输入下,本文分析了Royer逆变电路的工作原理,给出了工作的等效模型,并研究准正弦工作的条件,同时与基于TL494的BUCK电路相结合,设计了采用分立元件构成的直流电输入可调光电流型并联谐振逆变驱动器。根据设计思想,确定外部元器件选择方法,并研制了一台样机,通过实验验证了实现方法的可行性和可靠性。
在市电输入下,一方面减小电流谐波和提高功率因数已成为驱动电源一个重要研究方向。文中阐述了无源功率因数校正(PPFC)电路和有源功率因数校正电路(APFC)的工作原理和特点,分别给出了逐流式PPFC电路、电荷泵功率因数校正电路和基于L6561的APFC电路的设计方法,对比实验结果,达到了预期设计目标。另一方面本文还研究了半桥逆变电路驱动EEFL系统的等效模型,分析了正弦波激励下实现软开关技术的条件。介绍了半桥驱动的IR21571s芯片的性能、特点和工作模式,并对基于此芯片的5管EEFL驱动电路的构成进行了设计,研制了一种原理样机。实验结果显示在满足谐波和功率因数的要求下实现了EEFL的驱动,达到了设计标准。
As one of Cold Cathode Fluorescent Lamp (CCFL),the External Electrode Fluorescent Lamps(EEFL), presents good performances such as mercury-free environment, high lightness, longevity of service, low power consumption, instantaneous startup and so on. There will be a huge market. So EEFL will play the more and more important position in the future daily illumination field.
This paper first introduces the development backgrand and electrical characteristic about EEFL.This study analyzes Royer topology frames and half-bridge topology based on the theory of the modern inverter,and gives some parameters. At last,two kind of experimental goods are finished. So under the different input voltage,the paper aims to work out the driver device.
When DC 16～24V is given, this paper analyses the Royer and gives the equivalent of the working model. It also studys the conditions of the quasi-sine work. By using discrete components, parallel resonant inverter is designed, which has the BUCK circuit based on TL494. According to the design,it selected some components and developed a prototype.The experiment proved the feasibility and reliability of the design.
When AC 220V is given, two issues are considered. It is very important to reduce the current harmonic and improve the power factor for power supply.The paper introuduced the principles and characteristics of the passive power factor correction (PPFC) and active power factor correction circuit (APFC),and presents the design method for streaming PPFC circuit, the charge pump power factor correction circuit(CPPFC) and APFC circuit based on L6561.By comparing the experimental results,it achieved the expected goal. This paper also examines the equivalent EEFL model drived by the half-bridge inverter circuit, and analyses the conditions of soft-switch technology using sinusoidal driving method. It introduces the performance,characteristics and work patterns of IR21571s chip. The driver based on IR21571s is designed for five EEFL and a prototype is developed. The results show that the EEFL driver which meet the the requirements of harmonic and power factor operates well and reachs the goal.
本文介绍了外置电极荧光灯的发展背景及其电气特性;在现代逆变理论的基础上分析了Royer、半桥驱动电路的工作原理,给出了参数设计,并制作了原理样机。本论文的主要任务就是在不同输入电压下,研究外置电极荧光灯的驱动电源。
在直流16V～24V输入下,本文分析了Royer逆变电路的工作原理,给出了工作的等效模型,并研究准正弦工作的条件,同时与基于TL494的BUCK电路相结合,设计了采用分立元件构成的直流电输入可调光电流型并联谐振逆变驱动器。根据设计思想,确定外部元器件选择方法,并研制了一台样机,通过实验验证了实现方法的可行性和可靠性。
在市电输入下,一方面减小电流谐波和提高功率因数已成为驱动电源一个重要研究方向。文中阐述了无源功率因数校正(PPFC)电路和有源功率因数校正电路(APFC)的工作原理和特点,分别给出了逐流式PPFC电路、电荷泵功率因数校正电路和基于L6561的APFC电路的设计方法,对比实验结果,达到了预期设计目标。另一方面本文还研究了半桥逆变电路驱动EEFL系统的等效模型,分析了正弦波激励下实现软开关技术的条件。介绍了半桥驱动的IR21571s芯片的性能、特点和工作模式,并对基于此芯片的5管EEFL驱动电路的构成进行了设计,研制了一种原理样机。实验结果显示在满足谐波和功率因数的要求下实现了EEFL的驱动,达到了设计标准。
As one of Cold Cathode Fluorescent Lamp (CCFL),the External Electrode Fluorescent Lamps(EEFL), presents good performances such as mercury-free environment, high lightness, longevity of service, low power consumption, instantaneous startup and so on. There will be a huge market. So EEFL will play the more and more important position in the future daily illumination field.
This paper first introduces the development backgrand and electrical characteristic about EEFL.This study analyzes Royer topology frames and half-bridge topology based on the theory of the modern inverter,and gives some parameters. At last,two kind of experimental goods are finished. So under the different input voltage,the paper aims to work out the driver device.
When DC 16～24V is given, this paper analyses the Royer and gives the equivalent of the working model. It also studys the conditions of the quasi-sine work. By using discrete components, parallel resonant inverter is designed, which has the BUCK circuit based on TL494. According to the design,it selected some components and developed a prototype.The experiment proved the feasibility and reliability of the design.
When AC 220V is given, two issues are considered. It is very important to reduce the current harmonic and improve the power factor for power supply.The paper introuduced the principles and characteristics of the passive power factor correction (PPFC) and active power factor correction circuit (APFC),and presents the design method for streaming PPFC circuit, the charge pump power factor correction circuit(CPPFC) and APFC circuit based on L6561.By comparing the experimental results,it achieved the expected goal. This paper also examines the equivalent EEFL model drived by the half-bridge inverter circuit, and analyses the conditions of soft-switch technology using sinusoidal driving method. It introduces the performance,characteristics and work patterns of IR21571s chip. The driver based on IR21571s is designed for five EEFL and a prototype is developed. The results show that the EEFL driver which meet the the requirements of harmonic and power factor operates well and reachs the goal.
引文
[1]Guangsup Cho,Joo Y.Lee,Dae H.Lee,Sang B.Kim,Hyuck S.Song,Jehuan Koo,Bong S.Kim,June G.Kang,Eun H.Choi,Ung W.Lee,Soon C.Yang,and John P.Verboncoeur.Glow Discharge in the External Electrode Fluorescent Lamp.IEEE TRANSACTIONS ON PLASMA SCIENCE,2005,1(4):1410-1415.
[2]蒋小佳.绿色照明工程及节能分析.中国照明电器,2006(1):21-23.
[3]T.Shiga,K.Hashimoto,Y.Baba,S.Mikoshiba,S.Takaku,and S.Nishiyama,The sixth Asian symposium on information display and exhibition proceedings,in Proc.ASID,Xi'an,China,2000:165 - 169.
[4]路秋生.高频交流电子镇流器技术与应用.北京:人民邮电出版社,2004.
[5]T.S.Cho,N.O.Kwon,Y.M.Kim,H.S.Kim,S.J.Kim,J.G.Kang,E.H.Choi,and G.S.Cho,Capacitive coupled electrodeless discharge backlight driven by square pulses,IEEE Trans.Plasma Sci.,2002,5(30):2005- 2009.
[6]Jordan.M and O'Connor,JA.Resonant Fluorscent Lamp Converter Provides Efficient and Compact Solution[C].Proceeding of Applied Power Electronics Confenrece and Exposition,1993,1(1):424-431.
[7]Y.Takeda,M.takgi,T.Kurita,Y.watanabe,M.Amano,and H.Nakano.The characteristics of the extenrnal electrode mercury fluorescent lamp for backlignting liquid crystal television displays[C],Journal of the SID,2003,11(4):11-15.
[8]罗小泉.磁性变压器和压电变压器在CCFL应用中的比较.世界电子元器件,2002,5:47-49.
[9]Zhang X,den Engelsen D,Raper K et al.Lumen Efficiency of Cold Cathode Fluorescent Lamp(CCFL) Improvement with MgO Coated Cathode.IVESC Int.Vac.Electron Sources Conf.Proc.,2006,25(27):131-132.
[10]刘桂花,王卫,王议锋,徐殿国等.电荷泵PFC在金卤灯电子镇流器中的应用.电力电子技术,2006,12:77-79.
[11]张祖正,谢运祥.电荷泵功率因数校正技术分析.电工技术杂志,2003,4(1):44-48.
[12]陈传虞.电子节能灯与电子镇流器的原理和制作.北京:人民邮电出版社,2004:38-44.
[13]王卫,刘桂花.基于电荷泵功率因数校正技术的小功率高压钠灯用电子镇流器.照明电源,2006,19(5):37-40.
[14]William J.Designing supplies for powering LCD backlighting.EDN,1992,29(1):125-129.
[15]王尔镇.背光照明用冷阴极荧光灯技术发展.中国照明电器,2000(6):18-20.
[16]薛坚.冷阴极荧光灯驱动电源的研究:(硕士学位论文).南京:南京航空航天大学,2005.
[17]Lin C H,Lu Y,Pai K J.Digital-dimming controller with current spikes elimination technique for LCD backlight electronic ballast.Conf.Proc.IEEE Appl.Power Electron.Conf.Expo.APEC,2004,1:153-158.
[18]周志敏,周纪海,纪爱华.开关电源功率因数校正与应用.北京人民邮电出版社:2004
[19]陈绍溴.电荷泵在电子镇流器中的应用.宜春学院学报(自然科学),2002,24(4):13-15.
[20]Graovac M,Dawson F P.Fluorescent lamp cold environment performance improvement.IEEE Trans.Ind.Electron.,1999,46(2):2158-2163.
[21]FPED C.Y.LEE AND THOKhS G.WILSON,MEMBER,Modeling and Analysis of Several Classes of Self-Oscillating inverters:Part II-Model Extension,Classification,and Duality Relationships.IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS,1982,4(6):366-374.
[22]路秋生.电子镇流器的设计与调光控制.北京:科学出版社,2005.
[23]赵申苓.电子镇流与电容充放电.照明工程学报,2007,18(1):56-71.
[24]毛兴武,祝大卫.电子镇流器原理与制作.北京:人民邮电出版社,2004.
[25]陈剑瑜,章红芳,秦会斌.电子镇流器电路的EMC改进.杭州电子工业学院学报,2002,22(1):26-30.
[26]沙占友.EMI滤波器的设计原理.电子技术应用,2001,5:46-48.
[27]路秋生,吴亚娟.新型电子镇流器.灯与照明,2000,24(3):22-28.
[28]Yeon-Jae Lee.Comparative Study on Sinusoidal and Square wave driving methods of EEFL (External Electrode Fluorescent Lamp) for LCD TV Backlight.Power Electronics Specialists,IEEE 36 Conference on,2005:1113-1117.
[29]Lin Y L,Wittulski A F.Analysis and Design of Current-Fed Push Pull Resonant Inverters-Cold Cathode Fluorescent Lamp Drivers.Conf IAS Annu.Meet,1996,4:2149-2152.
[30]N.OKwon.Self-discharge synchronizing operations in the external electrode fluorescent multi-lamps backlight.Asia Display/IDW' 01,Proceedings,2001:625-628
[31]吕家东.EEFL背光技术与应用.照明工程学报.2005,16(3):24-27.
[32]周云正.电子镇流器半桥逆变输入电路分析与设计.电源技术应用,2006,9(4):38-45.
[33]Lin Y L,Witulski A F.Class L-a new single-ended DC-to-AC power inverter.Conf.Proc.IEEE Appl.Power Electron.Conf.Expo.APEC,1997,2:776-782.
[34]张卫平,吴兆麟.一个新颖的高功率因数-软开关-全桥逆变电路.电子学报,1998,26(12):104-106.
[35]周润文,张琳,丘晓华.抑制电网干扰的直接整流电路.电力电子技术,1997,2(1):45-47.
[36]黄荣华,李明.电子镇流器谐波测试及谐波对电力系统影响的探讨.电网技术,1994,18(1):34-42.
[37]罗初东,陈鸟常.逐流滤波电路及改善三项指标的思路.中国照明电器,2001,9:9-12.
[38]程为彬.电子镇流器中的有源功率因数校正电路.现代电子技术,2000,(7):43-46.
[39]刘霞,李国柱,郭东道等.单相APFC变换器主电路的设计.西安文理学院学报:自然科学版,2007,10(1):110-113.
[2]蒋小佳.绿色照明工程及节能分析.中国照明电器,2006(1):21-23.
[3]T.Shiga,K.Hashimoto,Y.Baba,S.Mikoshiba,S.Takaku,and S.Nishiyama,The sixth Asian symposium on information display and exhibition proceedings,in Proc.ASID,Xi'an,China,2000:165 - 169.
[4]路秋生.高频交流电子镇流器技术与应用.北京:人民邮电出版社,2004.
[5]T.S.Cho,N.O.Kwon,Y.M.Kim,H.S.Kim,S.J.Kim,J.G.Kang,E.H.Choi,and G.S.Cho,Capacitive coupled electrodeless discharge backlight driven by square pulses,IEEE Trans.Plasma Sci.,2002,5(30):2005- 2009.
[6]Jordan.M and O'Connor,JA.Resonant Fluorscent Lamp Converter Provides Efficient and Compact Solution[C].Proceeding of Applied Power Electronics Confenrece and Exposition,1993,1(1):424-431.
[7]Y.Takeda,M.takgi,T.Kurita,Y.watanabe,M.Amano,and H.Nakano.The characteristics of the extenrnal electrode mercury fluorescent lamp for backlignting liquid crystal television displays[C],Journal of the SID,2003,11(4):11-15.
[8]罗小泉.磁性变压器和压电变压器在CCFL应用中的比较.世界电子元器件,2002,5:47-49.
[9]Zhang X,den Engelsen D,Raper K et al.Lumen Efficiency of Cold Cathode Fluorescent Lamp(CCFL) Improvement with MgO Coated Cathode.IVESC Int.Vac.Electron Sources Conf.Proc.,2006,25(27):131-132.
[10]刘桂花,王卫,王议锋,徐殿国等.电荷泵PFC在金卤灯电子镇流器中的应用.电力电子技术,2006,12:77-79.
[11]张祖正,谢运祥.电荷泵功率因数校正技术分析.电工技术杂志,2003,4(1):44-48.
[12]陈传虞.电子节能灯与电子镇流器的原理和制作.北京:人民邮电出版社,2004:38-44.
[13]王卫,刘桂花.基于电荷泵功率因数校正技术的小功率高压钠灯用电子镇流器.照明电源,2006,19(5):37-40.
[14]William J.Designing supplies for powering LCD backlighting.EDN,1992,29(1):125-129.
[15]王尔镇.背光照明用冷阴极荧光灯技术发展.中国照明电器,2000(6):18-20.
[16]薛坚.冷阴极荧光灯驱动电源的研究:(硕士学位论文).南京:南京航空航天大学,2005.
[17]Lin C H,Lu Y,Pai K J.Digital-dimming controller with current spikes elimination technique for LCD backlight electronic ballast.Conf.Proc.IEEE Appl.Power Electron.Conf.Expo.APEC,2004,1:153-158.
[18]周志敏,周纪海,纪爱华.开关电源功率因数校正与应用.北京人民邮电出版社:2004
[19]陈绍溴.电荷泵在电子镇流器中的应用.宜春学院学报(自然科学),2002,24(4):13-15.
[20]Graovac M,Dawson F P.Fluorescent lamp cold environment performance improvement.IEEE Trans.Ind.Electron.,1999,46(2):2158-2163.
[21]FPED C.Y.LEE AND THOKhS G.WILSON,MEMBER,Modeling and Analysis of Several Classes of Self-Oscillating inverters:Part II-Model Extension,Classification,and Duality Relationships.IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS,1982,4(6):366-374.
[22]路秋生.电子镇流器的设计与调光控制.北京:科学出版社,2005.
[23]赵申苓.电子镇流与电容充放电.照明工程学报,2007,18(1):56-71.
[24]毛兴武,祝大卫.电子镇流器原理与制作.北京:人民邮电出版社,2004.
[25]陈剑瑜,章红芳,秦会斌.电子镇流器电路的EMC改进.杭州电子工业学院学报,2002,22(1):26-30.
[26]沙占友.EMI滤波器的设计原理.电子技术应用,2001,5:46-48.
[27]路秋生,吴亚娟.新型电子镇流器.灯与照明,2000,24(3):22-28.
[28]Yeon-Jae Lee.Comparative Study on Sinusoidal and Square wave driving methods of EEFL (External Electrode Fluorescent Lamp) for LCD TV Backlight.Power Electronics Specialists,IEEE 36 Conference on,2005:1113-1117.
[29]Lin Y L,Wittulski A F.Analysis and Design of Current-Fed Push Pull Resonant Inverters-Cold Cathode Fluorescent Lamp Drivers.Conf IAS Annu.Meet,1996,4:2149-2152.
[30]N.OKwon.Self-discharge synchronizing operations in the external electrode fluorescent multi-lamps backlight.Asia Display/IDW' 01,Proceedings,2001:625-628
[31]吕家东.EEFL背光技术与应用.照明工程学报.2005,16(3):24-27.
[32]周云正.电子镇流器半桥逆变输入电路分析与设计.电源技术应用,2006,9(4):38-45.
[33]Lin Y L,Witulski A F.Class L-a new single-ended DC-to-AC power inverter.Conf.Proc.IEEE Appl.Power Electron.Conf.Expo.APEC,1997,2:776-782.
[34]张卫平,吴兆麟.一个新颖的高功率因数-软开关-全桥逆变电路.电子学报,1998,26(12):104-106.
[35]周润文,张琳,丘晓华.抑制电网干扰的直接整流电路.电力电子技术,1997,2(1):45-47.
[36]黄荣华,李明.电子镇流器谐波测试及谐波对电力系统影响的探讨.电网技术,1994,18(1):34-42.
[37]罗初东,陈鸟常.逐流滤波电路及改善三项指标的思路.中国照明电器,2001,9:9-12.
[38]程为彬.电子镇流器中的有源功率因数校正电路.现代电子技术,2000,(7):43-46.
[39]刘霞,李国柱,郭东道等.单相APFC变换器主电路的设计.西安文理学院学报:自然科学版,2007,10(1):110-113.