Title :
A Simple Novel Wireless Integrated Power Management Unit (PMU) for Rechargeable Battery-Operated Implantable Biomedical Telemetry Systems
Author :
Wang, Peng ; Liang, Bo ; Ye, Xuesong ; Ko, Wen H. ; Cong, Peng
Author_Institution :
Dept. of Biomed. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
This paper presents a novel wireless integrated power management unit (PMU) for implantable biomedical telemetry systems. The PMU was fabricated in a 0.35μm CMOS technology occupying approximately 1×1 mm2. First, the presented unit can recharge implanted batteries via radio frequency power transmitted from an RF source. The charging voltage can be set in the range of 4.28V~5.3V for various batteries. The typical charging current is 200uA. Second, it provides on/off switching through external wireless control. Third, it has an ultra low standby current about 5pA. The size is reduced by a simplified control logic circuit and one inductive link coil to transfer the energy and data. The simplicity and modular feature make it a useful power interface designed for rechargeable battery-operated medical telemetry implants.
Keywords :
CMOS logic circuits; biomedical telemetry; prosthetic power supplies; secondary cells; CMOS technology; PMU; control logic circuit; current 200 muA; implantable biomedical telemetry systems; inductive link coil; power interface; radio frequency power; rechargeable battery-operated medical telemetry implants; size 0.35 mum; voltage 4.28 V to 5.3 V; wireless integrated power management unit; Battery management systems; Biomedical telemetry; CMOS technology; Energy management; Logic circuits; Phasor measurement units; Power system management; Radio frequency; Size control; Voltage;
Conference_Titel :
Bioinformatics and Biomedical Engineering (iCBBE), 2010 4th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4712-1
Electronic_ISBN :
2151-7614
DOI :
10.1109/ICBBE.2010.5517158
