Title :
RF-recharged microbattery for powering miniature sensors
Author :
Singh, Pripal ; Wang, Xiquan ; LaFollette, Rodney ; Reisner, David
Author_Institution :
ECE Dept., Villanova Univ., PA, USA
Abstract :
A novel power source for miniature sensors, comprising an RF-recharged microbattery is presented. The microbattery comprises a silicon wafer-fabricated aqueous Ni-Zn microbattery that is capable of delivering ∼10 mA for a few seconds. In this paper, we present charge/discharge test results on the microbattery itself and details of the RF charger circuit design and experimental test results on fabricated RF charger boards. Finally, we present test results on a sensor platform comprising an Analog Devices MEMS accelerometer, a microchip microcontroller, and an RF transmitter, all powered by the RF recharged microbattery.
Keywords :
accelerometers; battery chargers; microcontrollers; microsensors; nickel; radio transmitters; secondary cells; zinc; 10 mA; MEMS accelerometer; Ni; RF charger circuit; RF transmitter; RF-recharged microbattery; Zn; charge/discharge characteristics; microcontroller; microstrip patch antenna; miniature sensor power source; sensor platform; wafer-fabricated microbattery; Accelerometers; Batteries; Circuit testing; Energy storage; Fault location; Radio frequency; Sensor arrays; Silicon; Temperature; USA Councils;
Conference_Titel :
Sensors, 2004. Proceedings of IEEE
Print_ISBN :
0-7803-8692-2
DOI :
10.1109/ICSENS.2004.1426174
