Self-excited Circuit with Negative Resistance for Parity-time-symmetric Wireless Power Transfer and Enhanced Thermal Noise as Seed for Oscillation

被引：0
作者：
Kyoden, Tomoaki [1 ]
Ishida, Hiroki [2 ]
Furukawa, Hiroto [3 ]
机构：
[1] Toyama Coll, Natl Inst Technol, 1-2 Ebie Neriya, Imizu, Toyama 9330293, Japan
[2] Okayama Univ Sci, Dept Appl Phys, Kita Ku, 1-1 Ridaicho, Okayama 7000005, Japan
[3] Toyama Coll, Natl Inst Technol, 13 Hongo Machi, Toyama, Toyama 9398630, Japan
来源：
IEEJ JOURNAL OF INDUSTRY APPLICATIONS | 2021年 / 10卷 / 02期
基金：
日本学术振兴会;
关键词：
wireless power transfer; parity-time-symmetric condition; coupling mode theory; white noise; TRANSMISSION; FREQUENCY;
D O I：
10.1541/ieejjia.20006504
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this study, the effect of enhancing white noise for parity-time-symmetric (PTS) wireless power transfer (WPT) is investigated through modeling and simulation with TopSpice. The operating principle is described using the coupled mode theory. This study specifically focuses on the coupling situation, from strong coupling to incomplete PTS matching. The voltage amplitude in the receiver circuit increases because the PTS condition is completely preserved. However, it is difficult to initiate oscillation as there is a trade-off between the voltage amplitude and highly responsive oscillation in PTS-WPT for gain in the negative resistance regime. By enhancing the white noise signal, highly responsive oscillation is achieved at a high voltage and low gain. This study focuses on the enhancement of white noise for negative resistance for WPT. The proposed enables achieving to earlier stable oscillation with a high power supply.
引用
收藏
页码：254 / 261
页数：8
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