Autonomous Piezoelectric Energy Harvesting System for Improved Energy Extraction Using a Cmos Integrated Interface Circuit
نویسندگان
چکیده
This paper presents a piezoelectric energy harvesting system demonstrating the output power enhancement when using a CMOS integrated pulsed-resonance converter (PRC) instead of a simple Schottky diode bridge rectifier. The combination of a storage capacitor, a blinking light emitting diode (LED) and a voltage detector forms a fixed voltage regulator and visualizes the output power extracted out of the piezoelectric generator. At a fixed capacitor voltage of 2.1 V, the output power is increased by a factor of 1.7 using the PRC. The active load components of the energy harvesting system are exclusively powered by the generator and thus need no external power supply.
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