Title :
Simultaneous 6Gb/s data and 10mW power transmission using nested clover coils for non-contact memory card
Author :
Yuan, Yuxiang ; Radecki, Andrzej ; Miura, Noriyuki ; Aikawa, Iori ; Take, Yasuhiro ; Ishikuro, Hiroki ; Kuroda, Tadahiro
Author_Institution :
Keio Univ., Yokohama, Japan
Abstract :
This paper presents a non-contact memory card and a host employing simultaneous data and power transmission through inductive coupling. Nested clover-shaped data coils are proposed for reducing interference from a power link. The host wirelessly tracks current consumption of the card and adjusts transmit power to improve power transfer efficiency. The prototype is implemented in 65nm CMOS. It achieves 6Gb/s data rate and almost 10% power transfer efficiency over a 100-2kΩ range of the load.
Keywords :
CMOS memory circuits; CMOS; data transmission; inductive coupling; nested clover coils; nested clover-shaped data coils; noncontact memory card; power 10 mW; size 65 nm; Clocks; Coils; Data communication; Interference; Memory management; Power control; Resistance;
Conference_Titel :
VLSI Circuits (VLSIC), 2010 IEEE Symposium on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-5454-9
DOI :
10.1109/VLSIC.2010.5560298
