摘要
功率放大器是磁耦合无线电能传输系统的前端功率输入设备,对于无线电能传输系统的高效稳定运行起到至关重要的作用.本文给出了功率放大器的基本拓扑、匹配网络和整体电路设计方法,使其达到较高的传输效率.采用ADS软件对功率放大器性能进行分析,结果表明,设计的功率放大器在8.5 MHz中心频率上,当输入信号为29 d Bm时能够获得的最大功率为18.928 W,效率为89.516%.
As the front power input device,power amplifier is critical for the efficient and stable operation of magnetic coupling wireless power transmission system. This paper presents the design method of the basis circuit,matching circuit and integrated circuit to achieve higher transmission efficiency. With the ADS simulation software,the performance of the power amplifier is analyzed. The results indicate that the center frequency of the designed power amplifier is 8. 5 MHz and the maximum output power is 18. 928 W when the input power is 29 d Bm. Besides,the power added efficiency is able to reach 89. 516%.
出处
《河南师范大学学报（自然科学版）》
CAS
北大核心
2017年第1期120-124,共5页
Journal of Henan Normal University(Natural Science Edition)
基金
河南省重点科技攻关项目(152102210084)
河南师范大学青年科学基金(2013QK04)
关键词
功率放大器
中心频率
最大输出功率
power amplifier
center frequency
maximum output power
