DocumentCode
497949
Title
A dynamic real-time capacitor compensated inductive coupling transceiver for wearable body sensor network
Author
Lee, Seulki ; Yoo, Jerald ; Kim, Hyejung ; Yoo, Hoi-Jun
Author_Institution
Dept of EECS, KAIST, Guseong-dong, Yuseong-gu, Daejeon, 305-701, Republic of Korea
fYear
2009
fDate
16-18 June 2009
Firstpage
42
Lastpage
43
Abstract
A real-time capacitor compensation (RCC) scheme is proposed for low power wearable inductive coupling transceiver. To compensate for the dynamic parameter variations in real time, the inductance value is monitored and its resonance frequency is adjusted by additive capacitors. RLC bridge for detection of the inductance variations and the dual-edge sampling comparator for recognition of the variance direction are proposed. The proposed transceiver consumes only 426.6µW (102.6µW for TRX and 324µW for CDR) in a 0.18µm CMOS technology. And the compensation time takes only 4.78µs, including 3µs of detection and 1.78µs for compensation process in worst case.
Keywords
Biomedical monitoring; Body sensor networks; Bridges; CMOS technology; Capacitors; Condition monitoring; Inductance; Resonance; Resonant frequency; Transceivers;
fLanguage
English
Publisher
ieee
Conference_Titel
VLSI Circuits, 2009 Symposium on
Conference_Location
Kyoto, Japan
Print_ISBN
978-1-4244-3307-0
Electronic_ISBN
978-4-86348-001-8
Type
conf
Filename
5205296
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