Energy Harvesting For Iot Sensors Utilizing Mems Technology
2016 IEEE CANADIAN CONFERENCE ON ELECTRICAL AND COMPUTER ENGINEERING (CCECE)(2016)
摘要
The growing need for alternative sources to power sensors and portable devices has led to many power-scavenging solutions from ambient energy sources. As the technology scales down and the supply voltage drops, the complexity of power scavenging circuits increases. This paper presents a new transducer circuit utilizing MEMS technology together with a super-diode to convert ambient vibration energy to usable electrical energy efficiently. An integrated MEMS actuator containing a switch is used to eliminate the loss of efficiency due to the threshold voltage of diodes commonly used to implement electrostatic transducers. A super-diode has also been used to eliminate the need for synchronization while increasing the overall efficiency. Simulation results using Cadence design tools indicate an increased efficiency by more than 27% compared to the conventional electrostatic transducer.
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关键词
Energy harvesting,electrostatic transducer,MEMS actuator
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