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A single-input dual-output 13.56 MHz CMOS AC-DC converter with comparator-driven rectifiers for implantable devices

Title
A single-input dual-output 13.56 MHz CMOS AC-DC converter with comparator-driven rectifiers for implantable devices
Author(s)
Cha, Hyouk-KyuJe, Minkyu
Issued Date
2014-03
Citation
Microelectronics Journal, v.45, no.3, pp.277 - 281
Type
Article
Author Keywords
AC-DC converterCMOS rectifierComparatorImplantable deviceWireless power transferNeural recording
ISSN
0026-2692
Abstract
A highly efficient single-input, dual-output AC-DC converter for wireless power transfer in implantable devices is implemented using the 0.18-μm CMOS process. The proposed AC-DC converter, consisting of three rectifiers with cross-coupled NMOS transistors and comparator-driven PMOS transistors, achieves up to 79.5% power conversion efficiency at 13.56 MHz operation frequency in order to provide dual outputs of 1.2 V and 2.2 V DC voltages along with 6.2 mA and 22.6 mA of current, respectively, to the implant device from a single RF input. The designed IC consumes a core die area of 0.18 mm2. © 2014 Elsevier Ltd.
URI
http://hdl.handle.net/20.500.11750/2665
DOI
10.1016/j.mejo.2014.01.012
Publisher
ELSEVIER SCI LTD
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Department of Electrical Engineering and Computer Science Information and Communication Engineering Research Center 1. Journal Articles

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