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In this paper we present a 4-mm2 battery-less temperature sensor, designed to collect and periodically transmit information to an ambient monitoring system. It consists of a 0.35-µm BCD SOI technology based chip including an ultra-low power integrated circuit and an energy harvesting supply unit made by 34 series-parallel connected photovoltaic cells. Each cell consists of a trench insulated p-n junction...
In this paper we present a micro photovoltaic cell model, validated by the experimental results obtained from a test chip realized in 0.35-μm CMOS technology. In particular, we analyzed and modeled the behavior of an integrated p-n junction when irradiated with incident light with solar spectrum, considering the parameters of a conventional 0.35-μm CMOS technology. We considered...
In this paper a photovoltaic power generator is presented. The energy harvesting device exploits the power generated by several on-chip micro-photovoltaic cells, connected in series, to provide the supply voltage and the reference voltages for an integrated voltage regulator. The regulator operates also with low illumination levels or large load currents, and tolerates a wide variation of the voltage...
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