A wireless power telemetry with self-calibrated resonant frequency

Author

Huang, Wei-Jen ; Chen, Chein-Lung ; Liu, Shen-Iuan

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

fYear

2009

fDate

28-30 April 2009

Firstpage

80

Lastpage

83

Abstract

A wireless power telemetry with self-calibrated resonant frequency is presented. The proposed calibration scheme adjusts the resonant frequency of inductively secondary coil to match the incident frequency of inductively primary coil. To adjust the resonant frequency of the secondary coil, the received power efficiency is improved. By experimented results, the overall power efficiency with frequency calibration is improved by a factor of 33%, compared with that one without frequency calibration. This wireless power telemetry has been fabricated in a standard 0.35 mum CMOS process, and the chip area is 1.536 mm² including I/O pads.

Keywords

CMOS integrated circuits; calibration; coils; frequency measurement; radiotelemetry; CMOS I/O pads; CMOS process fabrication; frequency calibration; inductive primary coil; secondary coil resonant frequency; self-calibrated resonant frequency; size 0.35 mum; wireless power telemetry; CMOS logic circuits; Calibration; Capacitors; Coils; Coupling circuits; Rectifiers; Resonant frequency; Telemetry; Voltage; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Design, Automation and Test, 2009. VLSI-DAT '09. International Symposium on

Conference_Location

Hsinchu

Print_ISBN

978-1-4244-2781-9

Electronic_ISBN

978-1-4244-2782-6

Type

conf

DOI

10.1109/VDAT.2009.5158100

Filename

5158100