A unified DLL-controlled active rectifier in 6.78MHz resonant-coupling wireless power receivers for space-limited portable and wearable applications

Hee-am Shin; Young-Jae Min

doi:10.1587/elex.15.20180399

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A unified DLL-controlled active rectifier in 6.78MHz resonant-coupling wireless power receivers for space-limited portable and wearable applications

Hee-am Shin, Young-Jae Min

著者情報

キーワード: Active rectifier, Delay-locked loop (DLL), Resonant-coupling wireless power receiver, Space-limited wearable and portable application

ジャーナルフリー早期公開

論文ID: 15.20180399

DOI https://doi.org/10.1587/elex.15.20180399

この記事には本公開記事があります。

The final version of this article is now available: Vol. 15 (2018), No. 12 pp. 20180399-20180399

詳細

抄録

An active rectifier in 6.78MHz resonant-coupling wireless power receivers for space-limited portable and wearable applications is presented. To improve the power efficiency and reduce the die area, a fully NMOS transistor-based active rectifier with a unified delay-locked loop (DLL) controller is proposed. The proposed rectifier has been implemented in a 0.35μm CMOS technology with a die area of 0.612mm². The measured peak and minimum power efficiency within the power range of 80mw to 440mW are 91.8% and 69.6%, respectively.

責任著者(Corresponding author)

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