Voltage-boosting wireless power delivery system with fast load tracker by ΔΣ-modulated sub-harmonic resonant switching

Ryota Shinoda, Kazutoshi Tomita, Yuya Hasegawa, Hiroki Ishikuro

Research output: Chapter in Book/Report/Conference proceedingConference contribution

32 Citations (Scopus)

Abstract

Recently, many applications have emerged that use wireless power delivery technology. A new standard "Qi" [1] has been established for battery operated portable devices. The rechargeable battery acts as a power buffer and shields the rapid load variation. Therefore, the requirement of the response to load variation is not so stringent and time constant of the power control loop is longer than several tens of milliseconds. Several hundred kHz band is chosen for switching frequency to reduce the power loss and frequency modulation (FM) [2] or pulse-width modulation (PWM) [3] are used for power control because of their relaxed in-band spurious emission regulation.

Original languageEnglish
Title of host publication2012 IEEE International Solid-State Circuits Conference, ISSCC 2012 - Digest of Technical Papers
Pages288-289
Number of pages2
DOIs
Publication statusPublished - 2012 May 11
Event59th International Solid-State Circuits Conference, ISSCC 2012 - San Francisco, CA, United States
Duration: 2012 Feb 192012 Feb 23

Publication series

NameDigest of Technical Papers - IEEE International Solid-State Circuits Conference
Volume55
ISSN (Print)0193-6530

Other

Other59th International Solid-State Circuits Conference, ISSCC 2012
CountryUnited States
CitySan Francisco, CA
Period12/2/1912/2/23

    Fingerprint

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Shinoda, R., Tomita, K., Hasegawa, Y., & Ishikuro, H. (2012). Voltage-boosting wireless power delivery system with fast load tracker by ΔΣ-modulated sub-harmonic resonant switching. In 2012 IEEE International Solid-State Circuits Conference, ISSCC 2012 - Digest of Technical Papers (pp. 288-289). [6177018] (Digest of Technical Papers - IEEE International Solid-State Circuits Conference; Vol. 55). https://doi.org/10.1109/ISSCC.2012.6177018