Efficient on-chip wireless power transmission (invited paper)

Author

Raju, Salahuddin ; Mansun Chan ; Yue, C. Patrick

Author_Institution

Dept. of Electron. & Comput. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, China

fYear

2015

fDate

March 30 2015-April 1 2015

Firstpage

1

Lastpage

4

Abstract

In this work, an on-chip inductor was designed and fabricated for high efficiency miniaturized wireless power transfer. The on-chip power receiving inductor is based on above-CMOS integration (ACI) post processing technique. The fabricated 4.5×4.5 mm² ACI inductor achieved a large inductance of 4.24 μH and peak quality factor of 23 at 13.56 MHz frequency. The measurement of a wireless power transmission link with the ACI power receiving coil and a PCB based power transmitting coil renders a record-high efficiency of 37% and 8% at 5 mm and 10 mm transmission distances, respectively.

Keywords

CMOS integrated circuits; inductive power transmission; microprocessor chips; ACI post processing technique; ACI power receiving coil; PCB; above CMOS integration; onchip power receiving inductor; onchip wireless power transmission; peak quality factor; power transmitting coil renders; wireless power transfer; wireless power transmission link; CMOS integrated circuits; Inductors; Q-factor; System-on-chip; Wireless communication; Wireless sensor networks; On-chip inductor; quality factor; wireless power transfer;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Symposium (IWS), 2015 IEEE International

Conference_Location

Shenzhen

Type

conf

DOI

10.1109/IEEE-IWS.2015.7164634

Filename

7164634