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Power Management IC for a Dual-Input-Triple-Output Energy Harvester
Kai-Meng Mui1, Mei-Kum Khaw1, Faisal Mohd-Yasin2
1Lee Kong Chian Faculty of Engineering and Science, University Tunku Abdul Rahman, Bandar Sungai Long, Kajang 43000, Selangor, Malaysia.
Abstract:
We present the design of a power management integrated circuit that processes harvested energy from radio frequency waves and piezoelectric vibrations. The rectification of piezoelectric and RF sources has a power conversion efficiency (PCE) of 87.73% and 74.70%, respectively. The asynchronous and microcontroller-less integrated circuit (IC) is designed to be low power, so the bulk of the harvested energy goes to three loads. The output peak powers of 111 μW, 156 μW, and 128 μW will be sufficient to run small devices for RF communication systems.
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