Driving technique of electroluminescent devices by complex switching circuits
Driving and Controlling|更新时间:2022-06-14
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Driving technique of electroluminescent devices by complex switching circuits
Chinese Journal of Liquid Crystals and DisplaysVol. 37, Issue 4, Pages: 444-450(2022)
作者机构:
1.桂林电子科技大学 信息与通信学院, 广西 桂林 541004
2.桂林电子科技大学 广西无线宽带通信与信号处理重点实验室, 广西 桂林 541004
3.上海科润光电材料有限公司, 上海 200233
作者简介:
基金信息:
the National Natural ScienceFoundation of China(61961008);Guangxi Key Laboratory of Wireless Broadband Communication and Signal Processing(GXKL06190103);Graduate Research Innovation Project of Guilin University of Electronic Technology(2022YCXS035)
Long MAO, Zhi-yi HE, Yan ZHENG, et al. Driving technique of electroluminescent devices by complex switching circuits[J]. Chinese journal of liquid crystals and displays, 2022, 37(4): 444-450.
DOI:
Long MAO, Zhi-yi HE, Yan ZHENG, et al. Driving technique of electroluminescent devices by complex switching circuits[J]. Chinese journal of liquid crystals and displays, 2022, 37(4): 444-450. DOI: 10.37188/CJLCD.2021-0334.
Driving technique of electroluminescent devices by complex switching circuits
A composite switching circuit for flexible electroluminescent (EL) device driver was designed. The EL devices behave as capacitive loads, resulting in the transistors’ breaking down by the high peak current of the transistors at the instant as they are turned on and thus low reliability of the drivers. The thyristors (SCRs) with higher transient current capacity were employed as the main switching devices for the driver, in parallel connection to the MOSFETs. The MOSFETs play the roles of current shunt and short-circuiting, thereby turn off the thyristors after being turned on. The MOSFETs can stay off the peak current and the two kinds of transistor, both the thyristors and MOSFETs, could have the same or nearly the same temperature rise by properly adjusting the delay time of the MOSFETs, further improve the reliability of this composite thyristor-MOSFET switching circuit.
ZHU X P , YU C F , ZHANG M G , et al . Preparation technique and investigation status of inorganic electroluminescent materials [J]. China Ceramics , 2006 , 42 ( 10 ): 19 - 23 . (in Chinese) . doi: 10.3969/j.issn.1001-9642.2006.10.006 http://dx.doi.org/10.3969/j.issn.1001-9642.2006.10.006
QIN X L , HE Z Y , HE N . Efficiency characteristic analysis and driving scheme design of power LEDs [J]. Chinese Journal of Liquid Crystals and Display , 2012 , 27 ( 3 ): 371 - 377 . (in Chinese) . doi: 10.3788/YJYXS20122703.0371 http://dx.doi.org/10.3788/YJYXS20122703.0371
LIAO J J , SONG C . Design of a constant voltage and current switching power supply [J]. Electric Engineering , 2021 ( 10 ): 168 - 171, 174 . (in Chinese)
QIAN Z M , ZHANG J M , SHENG K . Status and development of power semiconductor devices and its applications [J]. Proceedings of the CSEE , 2014 , 34 ( 29 ): 5149 - 5161 . (in Chinese) . doi: 10.13334/j.0258-8013.pcsee.2014.29.017 http://dx.doi.org/10.13334/j.0258-8013.pcsee.2014.29.017
BALIGA B J . Fundamentals of Power Semiconductor Devices [M]. Berlin : Springer , 2008 : 51 - 87 . doi: 10.1007/978-0-387-47314-7 http://dx.doi.org/10.1007/978-0-387-47314-7
ZHOU Q J , TIAN M , LIU C , et al . Effect of sub-threshold current on d V /d t immunity of MOS-controlled thyristor [J]. Electronics & Packaging , 2020 , 20 ( 8 ): 080402 . (in Chinese) . doi: 10.16257/j.cnki.1681-1070.2020.0808 http://dx.doi.org/10.16257/j.cnki.1681-1070.2020.0808
JIANG F G , HE Z Y . LED lighting power drive technologies and applications [J]. Journal of Guilin University of Electronic Technology , 2013 , 33 ( 5 ): 358 - 362 . (in Chinese) . doi: 10.3969/j.issn.1673-808X.2013.05.004 http://dx.doi.org/10.3969/j.issn.1673-808X.2013.05.004
YOU Y B , HE Z Y . Studies on driving technology of low loss switching power supply for electroluminescent panel [J]. China Illuminating Engineering Journal , 2020 , 31 ( 3 ): 112 - 114, 170 . (in Chinese) . doi: 10.3969/j.issn.1004-440X.2020.03.021 http://dx.doi.org/10.3969/j.issn.1004-440X.2020.03.021
JIANG T L . The use of thyristor and its method [J]. Technology Innovation and Application , 2014 ( 6 ): 79 . (in Chinese) . doi: 10.1016/j.eti.2021.101489 http://dx.doi.org/10.1016/j.eti.2021.101489
HUANG Y Q , LV C Z , XIE X S , et al . One measurement method of thermal resistance of IGBT [J]. Power Electronics , 2010 , 44 ( 9 ): 104 - 105, 108 . (in Chinese) . doi: 10.3969/j.issn.1000-100X.2010.09.041 http://dx.doi.org/10.3969/j.issn.1000-100X.2010.09.041