The performance of RF power couplers with capacitive coupling for SRF accelerators

Liu, Yunqi; Zhuang, Dehao; Fang, Wang; Lin, Lin; Feng, Lixin; Quan, Shengwen; Liu, Kexin

doi:10.1016/j.nima.2021.165565

Cited by 5 publications

(1 citation statement)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[4][5][6] Wireless transmission methods are divided mainly into two types: near-field and far-field. In near-field or nonradiative technologies, energy is conveyed over relatively short distances by magnetic fields using inductive coupling [7][8][9][10] among coils, or by electric fields utilizing capacitive coupling [11,12] between metallic electrodes. Inductive coupling is the most prevalent wireless technology; its applications include charging portable devices, RFID tags, wireless charging, or continuous wireless energy transfer in implantable medical devices such as artificial pacemakers or electric vehicles.…”

Section: Introductionmentioning

confidence: 99%

Photovoltaic Class‐E Inverter for Resonance Wireless Power Transfer for Electric Vehicle Charging Applications with Optimization Algorithms

et al. 2023

View full text Add to dashboard Cite

A wireless power transfer (WPT) station supplied by an array of solar panels is presented, where solar energy comes from an array of panels with 120 V voltage and 3 A current. It is subjected to maximum power point tracking algorithm optimization on a boost converter, where the duty cycle of the converter is adjusted with an interval chosen between [0.2, 0.8], which is used to iteratively compare between the input and output signals in order to have a maximum power at the output. After regulating the panel array signal through the boost converter, the signal is transferred to an additional middle stage whose role is to raise the frequency until it reaches the resonance frequency of the WPT charger. The device responsible for this task is an inverter based on a class‐E inverter architecture and a GaN transistor technology. The inverter is controlled by a DSP card in a hard‐switch mode and delivers the output signal with a frequency of 10 Mhz, which is the resonance frequency of spiral coils of wireless chargers. Herein, the signal nature can be seen at the terminal of a fixed load with signal optimization through the MPPT algorithm and the HF inverter control mode.

show abstract