A Startup Control Method for Plasma Lamps by Using Fractional-N Phase-Locked Loop Microwave Driver

doi:10.3390/electronics11162576

	A Startup Control Method for Plasma Lamps by Using Fractional-N Phase-Locked Loop Microwave Driver
	Xu, Mengyao 1,2; Jia, Hua 2; Huan, Weiding 2; Shan, Jiafang 2
刊名	ELECTRONICS
	2022-08-01
卷号	11
关键词	RF source fractional-N PLL automatic control plasma light source
DOI	10.3390/electronics11162576
通讯作者	Jia, Hua(hjia@ipp.ac.cn)
英文摘要	The microwave-driven plasma light source has the feature of the full spectrum, similar to sunlight, and has broad application prospects. Startups of plasma lamps are very difficult since the plasma density and the resonator impedance are changing constantly with the warm-up process and the RF driver can hardly couple the power to the plasma efficiently. This paper presents a startup control method for plasma lamps by using an integrated fractional-N phase-locked loop (PLL) as the RF signal source. An RF control module including a 21 dBm RF source with a band of 430-460 MHz and detection circuits for the RF driver is developed, and the startup process of the plasma lamp is further studied by analyzing the return loss of the resonator under the plasma load. According to the test result, the maximum frequency deviation of the RF control module is 3.3 kHz over the working temperature range of -40-80 degrees C. The designed RF control module is used to drive a high-power amplifier to start the plasma lamp automatically. It takes 79 s to achieve the stable arc operation from the gas breakdown. The return loss of the resonator is -26 dB, with an incident power of 171 W and reflected power of 418 mW, indicating that the RF driver and the plasma achieve good coupling. Compared with continuous wave, the luminous flux of the lamp powered by RF pulse improves by 18% under the same electric power. This startup control method has stable performance, small temperature drift, and an effective control function for plasma lamps.
资助项目	National Natural Science Foundation of China[11675212]
WOS研究方向	Computer Science ; Engineering ; Physics
语种	英语
出版者	MDPI
WOS记录号	WOS:000846184100001
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/131838]
专题	中国科学院合肥物质科学研究院
通讯作者	Jia, Hua
作者单位	1.Univ Sci & Technol China, Sci Isl Branch, Grad Sch, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei Inst Phys Sci, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Xu, Mengyao,Jia, Hua,Huan, Weiding,et al. A Startup Control Method for Plasma Lamps by Using Fractional-N Phase-Locked Loop Microwave Driver[J]. ELECTRONICS,2022,11.
APA	Xu, Mengyao,Jia, Hua,Huan, Weiding,&Shan, Jiafang.(2022).A Startup Control Method for Plasma Lamps by Using Fractional-N Phase-Locked Loop Microwave Driver.ELECTRONICS,11.
MLA	Xu, Mengyao,et al."A Startup Control Method for Plasma Lamps by Using Fractional-N Phase-Locked Loop Microwave Driver".ELECTRONICS 11(2022).