Optimization of resonant inductive links for wireless power transfer

Hwang, Hyeonseok; Jo, Byeonghak; Moon, Junil; Kwon, Chan-Keun; Ko, Baekseok; Kim, Soo-Won

doi:10.1109/icce.2016.7430601

Cited by 2 publications

(1 citation statement)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this study, optimum conditions for maximum power transfer and efficiency for chosen transfer distances were derived using a simulated circuit and by establishing the same by experimental measurement. Three-dimensional electromagnetic simulations [17] have been performed to model the inductive coupling without tuning capacitors. Related coil design parameters are summarised in Table 1.…”

Section: Resonatormentioning

confidence: 99%

Design and implementation of a high‐efficiency 6.78 MHz resonant wireless power transfer system with a 5 W fully integrated power receiver

Moon

Hwang

et al. 2017

IET Power Electronics

Self Cite

View full text Add to dashboard Cite

This study presents the design and implementation of a 6.78 MHz wireless power transfer (WPT) system that uses magnetically coupled resonance for 5 W mobile phone charger applications. For a resonant WPT system, one of the most significant design issues is the power receiver because of its resonant characteristics. A compact resonant-type power receiver is required for high efficiency and robustness. To realise a compact size, a fully integrated 5 W power receiver that includes an on-chip AC-DC converter and a DC-DC converter is implemented. A protection circuit that operates only during initial power-up is proposed to protect the power switches in the receiver. The proposed receiver was implemented using a 0.18 µm bipolarcomplementary metal-oxide-semiconductor-double-diffused metal-oxide-semiconductor process with a die area of 3.5 mm × 3.5 mm. The measured maximum power transfer efficiency of the receiver and peak efficiency of the system was 81 and 51%, respectively.

show abstract

Section: Resonatormentioning

confidence: 99%