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This paper presents a comparison of standard topologies for AC-DC converters within micropower energy harvesting systems. The focus is on low input voltage (< 1 V), low input frequency (< a few kilohertz), ultra-low power consumption (nanowatts to microwatts), and fully integrated inductor-less cold start topologies. These standard topologies are compared in terms of PCE (power conversion efficiency),...
This In this paper, we present a new inverter topology in order to decrease the process variability influence on performances of a ring oscillator. Using FDSOI technology, we used the back-gate electrode of the transistor to symmetrize the output of a complementary inverter. This technique will reduce the variability of the inverter and the jitter (i.e. the phase noise) of the ring oscillator. Complementary...
Adders are the logic circuits designed to perform these arithmetic operations at a high speed. In digital adders, the speed of addition is limited by the time required to propagate a carry through the adder. An approach that locates the design's critical paths and operates these paths in the boosted performance mode is proposed. The noncritical paths are operated in the low energy DML mode, which...
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