Wide dynamic range rectifier circuit with sequential power delivery technique

Hamano, Koshi; Tanaka, Ryuya; Yoshida, Shizuo; Sakaki, Hiroto; Nishikawa, Kenjiro; Kawasaki, Shigeo; Kawai, Kunihiro; Okumura, Hiroshi; Narahashi, Shoichi; Shinohara, Naoki

doi:10.23919/eumic.2017.8230747

Cited by 6 publications

(1 citation statement)

References 4 publications

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“…Furthermore, a rectifier array has been presented to extend the range of the rectification process as in [16]. Also, to extend the power range of the rectifier, an asymmetric power divider has been proposed in [17].…”

Section: Introductionmentioning

confidence: 99%

An Adaptive Power Harvester with Active Load Modulation for Highly Efficient Short/Long Range RF WPT Applications

et al. 2018

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After demonstrating, in previous works, the proof of concept of adaptive rectifiers with active load modulation to operate simultaneously for short/long range RF Wireless Power Transfer (WPT) while maintaining a high Power Conversion Efficiency (PCE), the authors introduced in this paper a power link budget of the proposed adaptive rectifier with a compromise between distance and efficiency. Then, to further exhibit its capabilities and enhance its performance, this paper first introduced a discussion about the parameters preventing the rectifier from operating over a wide range of input powers was performed. Furthermore, active load modulation was implemented and its co-simulation results presented. Finally, an adaptive rectifier was fabricated and its results successfully compared to measured data. It exhibits 40% of PCE over a wide dynamic input range of incident RF power levels from −6 to 25 dBm at the 900 MHz in the Industrial Scientific Medical band (ISM band), with a maximum PCE of 66% for an input power of 15 dBm. The proposed devices are therefore suitable for WPT applications to harvest energy from a controlled source.

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Section: Introductionmentioning

confidence: 99%