Design andFabrication ofMiniVibration Power Generator System forMicroSensor Networks

highly efficient energyharvesting interface circuit that Abstract - Thispaperpresents a minivibration power showshighpowertransfer efficiency mustbedeveloped to generator system formicrosensor networks withtheoutput recharge theelectrical powerinto energy storage elements. powerof35mW,whichismuchlarger thanthose inthe Furthermore, since thevoltage oftherenewable power literature. The systemconsists ofa minielectromagneticsupply mustbe highenough topowermicrosensor vibration powergenerator and a highly efficient energy networks, thevoltage should beincreased toanacceptable harvesting circuit implemented on a tinyPCB. Using level. feedforward andfeedback DC-DC PWM BoostConverter (DPBC), thedesigned circuit steps uptheelectric voltage and stores theelectric energy into asuper capacitor, which isthen II.THEDESIGNOFELECTROMATNETIC usedasa smallelectrical powersupply foran micro POWER GENERATOR accelerometer network. Todesign apractical powergenerator (1-20mW)(6)for Index Terms -Vibration, integrated powergenerator, micro anielignt sr ner atsimply als of sensor~~ ~~