Chinese Journal of Liquid Crystals and Displays, Volume. 37, Issue 4, 444(2022)
Driving technique of electroluminescent devices by complex switching circuits
Fig. 2. SCRs（a）and mosfets（b）control timing pulse and output（c）waveforms
Fig. 3. Voltage and current simulation waveforms of the output and switching devices of the composite half-bridge switching circuit（the dash line boxes indicate 4 times of horizontal extension of SI1 and MI1 for visibility of delay）
Fig. 4. Current waveforms through the SCR（W1），MOSFET（W2）and load（W3）.
Fig. 5. Working temperature variations of SCR and MOSFET with the delay time Δt of MOSFET
Fig. 6. Driver and the physical diagram of driving the EL light source
Table 1. Rated parameters of common types of used switching devices in the same package
View tableView in ArticleTable 1. Rated parameters of common types of used switching devices in the same package
最大浪涌电流（反向击穿电压） 器件名（型号） 220 A（600 V） 可控硅（BT152） 88 A（500 V） MOS管（FDP22N50N） 32 A（600 V） IGBT（IRGIB1060KD1P）
Table 2. Comparison of the characteristics of this experiment with the previously designed［11］ circuit
View tableView in ArticleTable 2. Comparison of the characteristics of this experiment with the previously designed［11］ circuit
文献［ 11 ］本文设计 输入/输出效率 较低（75%） 较高（85%） 电路复杂度 低 中 调试难度 高 中 一致性 中 高
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Long MAO, Zhi-yi HE, Yan ZHENG, Shi-yu GUO. Driving technique of electroluminescent devices by complex switching circuits[J]. Chinese Journal of Liquid Crystals and Displays, 2022, 37(4): 444
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Received: Dec. 21, 2021
Accepted: --
Published Online: Jun. 20, 2022
The Author Email: Zhi-yi HE (hezhiyi@guet.edu.cn)
