NDLI: A Discrete Controlled Fully Integrated Class E Coil Driver With Power Efficient ASK Modulation for Powering Biomedical Implants

Content Provider	IEEE Xplore Digital Library
Author	Lee, E.K.F.
Copyright Year	2004
Abstract	An integrated feedback controlled class E coil driver for wirelessly powering biomedical implants was implemented in a high voltage 0.18 μm CMOS process. The coil driver was compensated using a discrete switched-capacitor controller for reducing the compensation capacitor area. A linearized discrete-time model was also developed for analyzing the stability of the proposed coil driver. Different methods to reduce the on-resistance of the coil driver switch had also been investigated. When compared to the previous design, the figure of merit for measuring the effectiveness of generating coil current was improved over 2.5 times. ASK modulation on the coil current was achieved by switching on or off an additional off-chip capacitor. Power increase during ASK modulation was reduced by 49.4% when compared to the previous design.
Sponsorship	IEEE Circuits and Systems Society
Starting Page	1678
Ending Page	1687
Page Count	10
File Size	2476666
File Format	PDF
ISSN	15498328
Volume Number	62
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Implants Switches Amplitude shift keying Power dissipation Transistors Topology inductive power transmission biomedical telemetry DC-AC power converters discrete-time systems driver circuits feedback circuits
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Hardware and Architecture

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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