2021/10/27 更新

写真a

ウシダ ヤスヒサ
牛田 泰久
USHIDA Yasuhisa
所属
未来材料・システム研究所 豊田合成GaN先端デバイス応用産学協同研究部門 特任准教授
職名
特任准教授
連絡先
メールアドレス
外部リンク

学位 1

  1. 博士(理学) ( 2001年3月   名古屋大学 ) 

 

論文 1

  1. Frequency Doubler Gate Drive Circuit Suitable for High-Frequency Applications

    Hattori F., Ushida Y., Sumiya K., Yanagisawa Y., Imaoka J., Noah M., Yamamoto M.

    IEEE Journal of Emerging and Selected Topics in Power Electronics     2021年

     詳細を見る

    記述言語:日本語   出版者・発行元:IEEE Journal of Emerging and Selected Topics in Power Electronics  

    In megahertz (MHz) power converters, the gate drive loss becomes one of the main issues that should be addressed. In the relevant literature, several gate drive circuits had been proposed to reduce the gate drive losses. A literature survey is provided in the introduction section to summarize the merits and demerits of each circuit. These studies proposed innovative methods to reduce gate drive loss. Nonetheless, they did not propose any solution to reduce the loss of the buffer stage inside the drive IC. In this paper, we present a frequency doubler gate drive circuit. The proposed gate drive circuit can double the frequency of the input PWM signal at the driver output stage, by utilizing the 2nd harmonic of the input signal. Therefore, the loss of the buffer stage inside the drive IC can be significantly reduced, compared with the hard-switching, the inductive resonant, and multi-resonant gate drive circuits. This paper focuses on designing, simulating, and experimentally validating the frequency doubler gate drive circuit with a 6.78 MHz input frequency and 13.56 MHz driving frequency. The concept of a frequency tripler gate drive circuit is also introduced and discussed. For instance, the frequency tripler gate drive circuit can triple the frequency of the input PWM signal at the driver output stage by utilizing the 3rd harmonic, in this scenario, a 20.34 MHz driving frequency can be obtained. The proposed frequency doubler gate drive circuit is experimentally tested in a 13.56 MHz class E inverter.

    DOI: 10.1109/JESTPE.2021.3089506

    Scopus