A low EMI SIDO wireless power transfer system with 10μsec response time

Toru Kawajiri, Takahiro Moroto, Hiroki Ishikuro

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

6 Citations (Scopus)


This paper describes a system of single-inductor-dual-output (SIDO) wireless power delivery for mobile applications. By updating control signal in the feedback loop by every switching clock cycle, fast tracking to the load change is realized while spurious emission is suppressed by using pseudorandom-sequence PWM (PRS-PWM). Transmitter and receiver chips were fabricated in 0.18μm CMOS process and mounted on the wireless power transfer test board. The system achieved response time shorter than 10μsec. Two output voltages are regulated at 8V and 16V, and maximum efficiency of 41% was achieved when the total output power is 500mW.

Original languageEnglish
Title of host publicationESSCIRC 2015 - Proceedings of the 41st European Solid-State Circuits Conference
EditorsFranz Dielacher, Wolfgang Pribyl, Gernot Hueber
PublisherIEEE Computer Society
Number of pages4
ISBN (Electronic)9781467374705
Publication statusPublished - 2015 Oct 30
Event41st European Solid-State Circuits Conference, ESSCIRC 2015 - Graz, Austria
Duration: 2015 Sept 142015 Sept 18

Publication series

NameEuropean Solid-State Circuits Conference
ISSN (Print)1930-8833


Other41st European Solid-State Circuits Conference, ESSCIRC 2015


  • Pseudo-Random-Sequence PWM (PRS-PWM)
  • single-inductor dual-output (SIDO)
  • wireless power delivery

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering


Dive into the research topics of 'A low EMI SIDO wireless power transfer system with 10μsec response time'. Together they form a unique fingerprint.

Cite this