A reconfigurable multi-ratio charge pump with wide input/output voltage range for wireless energy harvesting system

Shiquan Fan; Jun Dong; Rui Zhang; Zhongming Xue; Li Geng

doi:10.1109/IEEE-IWS.2018.8400990

A reconfigurable multi-ratio charge pump with wide input/output voltage range for wireless energy harvesting system

Shiquan Fan
, Jun Dong
, Rui Zhang
, Zhongming Xue
, Li Geng

Faculty of Electronic and Information Engineering

Xi'an Jiaotong University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

12 Scopus citations

Abstract

A charge pump (CP) with reconfigurable multi-ratio is proposed for wireless energy harvesting system, which has almost eight ratios with small step to suit for wide input or output voltage range applications. Six flying capacitors are adopted to generate different conversion ratios (CRs) from ×0.25 to ×2 with step of 0.25. The CR of the CP is determined by input voltage and on-chip control unit. Thus, an almost constant output voltage is obtained in a wide input voltage range. Besides, the MOS switches of the CP are driven by a two-phase non-overlapping clock to reduce quiescent current and improve the power conversion efficiency (PCE). As a result, a configurable CP is achieved by using a standard 0.35 μm CMOS process with 1.7 mm² die area (include PADs.) The output voltage of the CP can be kept almost constant at 3.6 V when Vin varies from 1.77 V to 4.80 V. The PCE is over 80% no matter which CR is, and the maximum PCE of 93.8% is achieved when Vin=3.6 and CR=1 @ 1.2 KΩ load resistance. The wide input/output voltage range and PCE of the proposed CP shows its good practicality for DC-DC converter of wireless energy harvesting system.

Original language	English
Title of host publication	2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1-3
Number of pages	3
ISBN (Electronic)	9781538663462
DOIs	https://doi.org/10.1109/IEEE-IWS.2018.8400990
State	Published - 29 Jun 2018
Event	2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Chengdu, China Duration: 6 May 2018 → 9 May 2018

Publication series

Name	2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Proceedings

Conference

Conference	2018 IEEE MTT-S International Wireless Symposium, IWS 2018
Country/Territory	China
City	Chengdu
Period	6/05/18 → 9/05/18

Keywords

Charge pump
DC-DC converter
multi-ratio
power conversion efficiency
reconfigurable
wireless energy harvesting

Access to Document

10.1109/IEEE-IWS.2018.8400990

Cite this

Fan, S., Dong, J., Zhang, R., Xue, Z., & Geng, L. (2018). A reconfigurable multi-ratio charge pump with wide input/output voltage range for wireless energy harvesting system. In 2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Proceedings (pp. 1-3). (2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IEEE-IWS.2018.8400990

Fan, Shiquan ; Dong, Jun ; Zhang, Rui et al. / A reconfigurable multi-ratio charge pump with wide input/output voltage range for wireless energy harvesting system. 2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2018. pp. 1-3 (2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Proceedings).

@inproceedings{863eb7d5d6e8492b905fecd6d9e633f1,

title = "A reconfigurable multi-ratio charge pump with wide input/output voltage range for wireless energy harvesting system",

abstract = "A charge pump (CP) with reconfigurable multi-ratio is proposed for wireless energy harvesting system, which has almost eight ratios with small step to suit for wide input or output voltage range applications. Six flying capacitors are adopted to generate different conversion ratios (CRs) from ×0.25 to ×2 with step of 0.25. The CR of the CP is determined by input voltage and on-chip control unit. Thus, an almost constant output voltage is obtained in a wide input voltage range. Besides, the MOS switches of the CP are driven by a two-phase non-overlapping clock to reduce quiescent current and improve the power conversion efficiency (PCE). As a result, a configurable CP is achieved by using a standard 0.35 μm CMOS process with 1.7 mm2 die area (include PADs.) The output voltage of the CP can be kept almost constant at 3.6 V when Vin varies from 1.77 V to 4.80 V. The PCE is over 80\% no matter which CR is, and the maximum PCE of 93.8\% is achieved when Vin=3.6 and CR=1 @ 1.2 KΩ load resistance. The wide input/output voltage range and PCE of the proposed CP shows its good practicality for DC-DC converter of wireless energy harvesting system.",

keywords = "Charge pump, DC-DC converter, multi-ratio, power conversion efficiency, reconfigurable, wireless energy harvesting",

author = "Shiquan Fan and Jun Dong and Rui Zhang and Zhongming Xue and Li Geng",

note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 2018 IEEE MTT-S International Wireless Symposium, IWS 2018 ; Conference date: 06-05-2018 Through 09-05-2018",

year = "2018",

month = jun,

day = "29",

doi = "10.1109/IEEE-IWS.2018.8400990",

language = "英语",

series = "2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Proceedings",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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booktitle = "2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Proceedings",

}

Fan, S, Dong, J, Zhang, R, Xue, Z & Geng, L 2018, A reconfigurable multi-ratio charge pump with wide input/output voltage range for wireless energy harvesting system. in 2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Proceedings. 2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Proceedings, Institute of Electrical and Electronics Engineers Inc., pp. 1-3, 2018 IEEE MTT-S International Wireless Symposium, IWS 2018, Chengdu, China, 6/05/18. https://doi.org/10.1109/IEEE-IWS.2018.8400990

A reconfigurable multi-ratio charge pump with wide input/output voltage range for wireless energy harvesting system. / Fan, Shiquan; Dong, Jun; Zhang, Rui et al.
2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2018. p. 1-3 (2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - A reconfigurable multi-ratio charge pump with wide input/output voltage range for wireless energy harvesting system

AU - Fan, Shiquan

AU - Dong, Jun

AU - Zhang, Rui

AU - Xue, Zhongming

AU - Geng, Li

PY - 2018/6/29

Y1 - 2018/6/29

N2 - A charge pump (CP) with reconfigurable multi-ratio is proposed for wireless energy harvesting system, which has almost eight ratios with small step to suit for wide input or output voltage range applications. Six flying capacitors are adopted to generate different conversion ratios (CRs) from ×0.25 to ×2 with step of 0.25. The CR of the CP is determined by input voltage and on-chip control unit. Thus, an almost constant output voltage is obtained in a wide input voltage range. Besides, the MOS switches of the CP are driven by a two-phase non-overlapping clock to reduce quiescent current and improve the power conversion efficiency (PCE). As a result, a configurable CP is achieved by using a standard 0.35 μm CMOS process with 1.7 mm2 die area (include PADs.) The output voltage of the CP can be kept almost constant at 3.6 V when Vin varies from 1.77 V to 4.80 V. The PCE is over 80% no matter which CR is, and the maximum PCE of 93.8% is achieved when Vin=3.6 and CR=1 @ 1.2 KΩ load resistance. The wide input/output voltage range and PCE of the proposed CP shows its good practicality for DC-DC converter of wireless energy harvesting system.

AB - A charge pump (CP) with reconfigurable multi-ratio is proposed for wireless energy harvesting system, which has almost eight ratios with small step to suit for wide input or output voltage range applications. Six flying capacitors are adopted to generate different conversion ratios (CRs) from ×0.25 to ×2 with step of 0.25. The CR of the CP is determined by input voltage and on-chip control unit. Thus, an almost constant output voltage is obtained in a wide input voltage range. Besides, the MOS switches of the CP are driven by a two-phase non-overlapping clock to reduce quiescent current and improve the power conversion efficiency (PCE). As a result, a configurable CP is achieved by using a standard 0.35 μm CMOS process with 1.7 mm2 die area (include PADs.) The output voltage of the CP can be kept almost constant at 3.6 V when Vin varies from 1.77 V to 4.80 V. The PCE is over 80% no matter which CR is, and the maximum PCE of 93.8% is achieved when Vin=3.6 and CR=1 @ 1.2 KΩ load resistance. The wide input/output voltage range and PCE of the proposed CP shows its good practicality for DC-DC converter of wireless energy harvesting system.

KW - Charge pump

KW - DC-DC converter

KW - multi-ratio

KW - power conversion efficiency

KW - reconfigurable

KW - wireless energy harvesting

UR - https://www.scopus.com/pages/publications/85050390493

U2 - 10.1109/IEEE-IWS.2018.8400990

DO - 10.1109/IEEE-IWS.2018.8400990

M3 - 会议稿件

AN - SCOPUS:85050390493

T3 - 2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Proceedings

SP - 1

EP - 3

BT - 2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2018 IEEE MTT-S International Wireless Symposium, IWS 2018

Y2 - 6 May 2018 through 9 May 2018

ER -

Fan S, Dong J, Zhang R, Xue Z, Geng L. A reconfigurable multi-ratio charge pump with wide input/output voltage range for wireless energy harvesting system. In 2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2018. p. 1-3. (2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Proceedings). doi: 10.1109/IEEE-IWS.2018.8400990

A reconfigurable multi-ratio charge pump with wide input/output voltage range for wireless energy harvesting system

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