A wireless power transfer system with dual switch-controlled capacitors for efficiency optimization

J Zhang, J Zhao, Y Zhang… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
This article proposes a novel wireless power transfer (WPT) system with switch-controlled
capacitor (SCC) where variable capacitance and efficiency optimization are realized. The …

Inductive power transfer based on variable compensation capacitance to achieve an EV charging profile with constant optimum load

F Grazian, TB Soeiro, P Bauer - IEEE Journal of Emerging and …, 2022 - ieeexplore.ieee.org
Wireless charging must be highly efficient throughout the entire battery charging profile to
compete in the electric vehicle (EV) industry. Thus, optimum load matching is commonly …

Autonomous system concept of multiple-receiver inductive coupling wireless power transfer for output power stabilization against cross-interference among receivers …

M Ishihara, K Fujiki, K Umetani… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Multiple-receiver resonant inductive coupling wireless power transfer (RIC-WPT) technique
is emerging as a promising charging method for multiple household appliances, mobile …

Self-tuning wpt system with constant voltage output under resonance frequency shift

R Zhang, H Yuan, M Rong, W Ke… - … on Power Electronics, 2023 - ieeexplore.ieee.org
Automatic compensation techniques have become the research hotspots of wireless power
transfer (WPT). In this article, a circuit with an automatic tuning function for WPT system is …

Communication-less reactance compensation using PWM-controlled switched capacitors for wireless power transfer

R Matsumoto, T Fujita… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Self-inductance variations caused by component tolerance and aging decrease the
efficiency of wireless power transfer (WPT) systems. This article deals with this issue by …

DC-link and switched capacitor control for varying coupling conditions in inductive power transfer system for unmanned aerial vehicles

H Zhang, Y Chen, CH Jo, SJ Park… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
The use of wireless power transfer technology in unmanned aerial vehicle (UAV) systems is
rapidly improving in different application areas. The main limitations of electric-powered …

Automatic active compensation method of cross-coupling in multiple-receiver resonant inductive coupling wireless power transfer systems

M Ishihara, K Fujiki, K Umetani… - 2019 IEEE Energy …, 2019 - ieeexplore.ieee.org
The ability to charge to multiple receivers simultaneously with a single transmitter is one of
the advantages of resonant inductive coupling wireless power transfer (RIC-WPT) …

Minimizing input current of the rectifier of LCC–LCC compensated IPT systems by switch-controlled capacitor for improving efficiency

L Zhou, R Mai, S Liu, J Yu, Y Li… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
In the inductive power transfer (IPT) system for automatic guided vehicles with a low-voltage
and high-current property, the large current stress in the rectifier is one of the reasons for …

Novel soft-switching active-bridge converter for bi-directional inductive power transfer system

R Okada, R Ota, N Hoshi - IEEJ Journal of Industry Applications, 2022 - jstage.jst.go.jp
Inductive power transfer (IPT) systems suffer from power loss caused by reactive currents
that circulate in the system during soft-switching operation. To address this problem, this …

A flexible wireless power transfer system with switch controlled capacitor

J Zhao, J Zhang, Y Zhu - IEEE Access, 2019 - ieeexplore.ieee.org
Wireless power transfer (WPT) with a switch-controlled capacitor (SCC) is proposed in this
paper for compensating load impedance which is related to the coupling coefficient of coils …