Communication-Free Control Scheme for Qi-Compliant Wireless Power Transfer Systems

Yun Yang; Siew-Chong Tan; Shu Yuen Ron Hui

doi:10.1109/ECCE.2019.8912496

Communication-Free Control Scheme for Qi-Compliant Wireless Power Transfer Systems

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

17 Citations (Scopus)

Abstract

A conventional Qi-compliant wireless power transfer (WPT) system comprises an amplitude-shift keying (ASK) modulator and a DC regulator at the receiver side. The ASK modulator sends power demand signals back to the transmitter by means of backscatter to adjust the input power, such that the DC regulator has sufficient headroom to maintain well-regulated output voltage. Alternatively, in this paper, a communication-free control scheme is proposed for Qicompliant WPT systems without a DC regulator. The output voltage is controlled by the ASK modulator without any communication between the transmitter and the receiver. Therefore, the switched transistor bridge of the transmitter can be controlled to track the maximum energy efficiency (MEE) of the WPT system. The proposed control scheme is simple and intuitive, which can be easily implemented in low-price digital controllers. © 2019 IEEE.

Original language	English
Title of host publication	2019 IEEE Energy Conversion Congress and Exposition (ECCE)
Publisher	IEEE
Pages	4955-4960
ISBN (Electronic)	9781728103952, 978-1-7281-0394-5
ISBN (Print)	978-1-7281-0396-9
DOIs	https://doi.org/10.1109/ECCE.2019.8912496
Publication status	Published - 2019
Externally published	Yes
Event	11th Annual IEEE Energy Conversion Congress and Exposition (ECCE 2019) - Baltimore, United States Duration: 29 Sept 2019 → 3 Oct 2019 https://ieeexplore.ieee.org/xpl/conhome/8897530/proceeding

Publication series

Name	IEEE Energy Conversion Congress and Exposition, ECCE
ISSN (Print)	2329-3721
ISSN (Electronic)	2329-3748

Conference

Conference	11th Annual IEEE Energy Conversion Congress and Exposition (ECCE 2019)
Abbreviated title	IEEE ECCE 2019
Place	United States
City	Baltimore
Period	29/09/19 → 3/10/19
Internet address	https://ieeexplore.ieee.org/xpl/conhome/8897530/proceeding

Research Keywords

Amplitude-shift keying (ASK) modulator
Communication-free
DC regulator
Maximum energy efficiency (MEE)
Qi-compliant wireless power transfer (WPT) system

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10.1109/ECCE.2019.8912496

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Cite this

@inproceedings{30aac89b39864a8abf220243cc59d777,

title = "Communication-Free Control Scheme for Qi-Compliant Wireless Power Transfer Systems",

abstract = "A conventional Qi-compliant wireless power transfer (WPT) system comprises an amplitude-shift keying (ASK) modulator and a DC regulator at the receiver side. The ASK modulator sends power demand signals back to the transmitter by means of backscatter to adjust the input power, such that the DC regulator has sufficient headroom to maintain well-regulated output voltage. Alternatively, in this paper, a communication-free control scheme is proposed for Qicompliant WPT systems without a DC regulator. The output voltage is controlled by the ASK modulator without any communication between the transmitter and the receiver. Therefore, the switched transistor bridge of the transmitter can be controlled to track the maximum energy efficiency (MEE) of the WPT system. The proposed control scheme is simple and intuitive, which can be easily implemented in low-price digital controllers. {\textcopyright} 2019 IEEE.",

keywords = "Amplitude-shift keying (ASK) modulator, Communication-free, DC regulator, Maximum energy efficiency (MEE), Qi-compliant wireless power transfer (WPT) system",

author = "Yun Yang and Siew-Chong Tan and \{Ron Hui\}, \{Shu Yuen\}",

year = "2019",

doi = "10.1109/ECCE.2019.8912496",

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publisher = "IEEE",

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booktitle = "2019 IEEE Energy Conversion Congress and Exposition (ECCE)",

address = "United States",

note = "11th Annual IEEE Energy Conversion Congress and Exposition (ECCE 2019), IEEE ECCE 2019 ; Conference date: 29-09-2019 Through 03-10-2019",

url = "https://ieeexplore.ieee.org/xpl/conhome/8897530/proceeding",

}

Yang, Y, Tan, S-C & Ron Hui, SY 2019, Communication-Free Control Scheme for Qi-Compliant Wireless Power Transfer Systems. in 2019 IEEE Energy Conversion Congress and Exposition (ECCE)., 8912496, IEEE Energy Conversion Congress and Exposition, ECCE, IEEE, pp. 4955-4960, 11th Annual IEEE Energy Conversion Congress and Exposition (ECCE 2019), Baltimore, Maryland, United States, 29/09/19. https://doi.org/10.1109/ECCE.2019.8912496

Communication-Free Control Scheme for Qi-Compliant Wireless Power Transfer Systems. / Yang, Yun; Tan, Siew-Chong ; Ron Hui, Shu Yuen.
2019 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE, 2019. p. 4955-4960 8912496 (IEEE Energy Conversion Congress and Exposition, ECCE).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Communication-Free Control Scheme for Qi-Compliant Wireless Power Transfer Systems

AU - Yang, Yun

AU - Tan, Siew-Chong

AU - Ron Hui, Shu Yuen

PY - 2019

Y1 - 2019

N2 - A conventional Qi-compliant wireless power transfer (WPT) system comprises an amplitude-shift keying (ASK) modulator and a DC regulator at the receiver side. The ASK modulator sends power demand signals back to the transmitter by means of backscatter to adjust the input power, such that the DC regulator has sufficient headroom to maintain well-regulated output voltage. Alternatively, in this paper, a communication-free control scheme is proposed for Qicompliant WPT systems without a DC regulator. The output voltage is controlled by the ASK modulator without any communication between the transmitter and the receiver. Therefore, the switched transistor bridge of the transmitter can be controlled to track the maximum energy efficiency (MEE) of the WPT system. The proposed control scheme is simple and intuitive, which can be easily implemented in low-price digital controllers. © 2019 IEEE.

AB - A conventional Qi-compliant wireless power transfer (WPT) system comprises an amplitude-shift keying (ASK) modulator and a DC regulator at the receiver side. The ASK modulator sends power demand signals back to the transmitter by means of backscatter to adjust the input power, such that the DC regulator has sufficient headroom to maintain well-regulated output voltage. Alternatively, in this paper, a communication-free control scheme is proposed for Qicompliant WPT systems without a DC regulator. The output voltage is controlled by the ASK modulator without any communication between the transmitter and the receiver. Therefore, the switched transistor bridge of the transmitter can be controlled to track the maximum energy efficiency (MEE) of the WPT system. The proposed control scheme is simple and intuitive, which can be easily implemented in low-price digital controllers. © 2019 IEEE.

KW - Amplitude-shift keying (ASK) modulator

KW - Communication-free

KW - DC regulator

KW - Maximum energy efficiency (MEE)

KW - Qi-compliant wireless power transfer (WPT) system

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BT - 2019 IEEE Energy Conversion Congress and Exposition (ECCE)

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Y2 - 29 September 2019 through 3 October 2019

ER -

Communication-Free Control Scheme for Qi-Compliant Wireless Power Transfer Systems

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