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

Toru Kawajiri; Takahiro Moroto; Hiroki Ishikuro

doi:10.1109/ESSCIRC.2015.7313875

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 proceeding › Conference contribution

5 Citations (Scopus)

Abstract

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 language	English
Title of host publication	European Solid-State Circuits Conference
Publisher	IEEE Computer Society
Pages	253-256
Number of pages	4
Volume	2015-October
ISBN (Print)	9781467374705
DOIs	https://doi.org/10.1109/ESSCIRC.2015.7313875
Publication status	Published - 2015 Oct 30
Event	41st European Solid-State Circuits Conference, ESSCIRC 2015 - Graz, Austria Duration: 2015 Sept 14 → 2015 Sept 18

Other

Other	41st European Solid-State Circuits Conference, ESSCIRC 2015
Country/Territory	Austria
City	Graz
Period	15/9/14 → 15/9/18

Keywords

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

Access to Document

10.1109/ESSCIRC.2015.7313875

Cite this

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title = "A low EMI SIDO wireless power transfer system with 10μsec response time",

abstract = "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.",

keywords = "Pseudo-Random-Sequence PWM (PRS-PWM), single-inductor dual-output (SIDO), wireless power delivery",

author = "Toru Kawajiri and Takahiro Moroto and Hiroki Ishikuro",

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doi = "10.1109/ESSCIRC.2015.7313875",

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T1 - A low EMI SIDO wireless power transfer system with 10μsec response time

AU - Kawajiri, Toru

AU - Moroto, Takahiro

AU - Ishikuro, Hiroki

PY - 2015/10/30

Y1 - 2015/10/30

N2 - 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.

AB - 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.

KW - Pseudo-Random-Sequence PWM (PRS-PWM)

KW - single-inductor dual-output (SIDO)

KW - wireless power delivery

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DO - 10.1109/ESSCIRC.2015.7313875

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SN - 9781467374705

VL - 2015-October

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BT - European Solid-State Circuits Conference

PB - IEEE Computer Society

T2 - 41st European Solid-State Circuits Conference, ESSCIRC 2015

Y2 - 14 September 2015 through 18 September 2015

ER -

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

Abstract

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Keywords

ASJC Scopus subject areas

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