Browsing by Subject "charge pumps"

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    Design of Ultra-Low Power FinFET Charge Pumps for Energy Harvesting Systems
    (2024-08) Atluri, Mohan Krishna; Rizkalla, Maher E.; King, Brian S.; Christopher, Lauren A.
    This work introduces an ultra-low-voltage charge pump for energy harvesters in biosensors. The unique aspect of the proposed charge pump is its two-level design, where the first stage elevates the voltage to a specific level, and the output voltage of this stage becomes the input voltage of the second stage. Using two levels reduces the number of stages in a charge pump and improves efficiency to get a higher voltage gain. In our measurements, this charge pump design could convert a low 85mV input voltage to a substantial 608.2mV output voltage, approximately 7.15 times the input voltage, while maintaining a load resistance of 7MΩ and a 29.5% conversion efficiency.