Remote powering realization for smart orthopedic implants

This paper presents a remote powering realization for smart orthopedic implants with a full-wave rectifier and a voltage doubler. The measured power efficiency of the rectifier at 13.56 MHz is 80% for an output power of 20 mW with 2.2 V output. The rectifier consists of two cross coupled PMOS transi...

Full description

Saved in:
Bibliographic Details
Published in10th IEEE International NEWCAS Conference pp. 521 - 524
Main Authors Atasoy, O., Dehollain, C.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2012
Subjects
Coils
Implants
Power generation
Power measurement
Prosthetics
Transistors
Voltage measurement
Online AccessGet full text

Cover

More Information
Summary:This paper presents a remote powering realization for smart orthopedic implants with a full-wave rectifier and a voltage doubler. The measured power efficiency of the rectifier at 13.56 MHz is 80% for an output power of 20 mW with 2.2 V output. The rectifier consists of two cross coupled PMOS transistors, and two NMOS switches with two comparators. The power efficiency of the voltage doubler is measured to be higher than 85% for output powers from 2 mW to 20 mW. Both circuits are fabricated by using 0.18 μm standard CMOS process. The remote powering is realized by using two spiral coils and a class-E type power amplifier working at 13.56 MHz.
ISBN:1467308579
9781467308571
DOI:10.1109/NEWCAS.2012.6329071