Abstract
In this paper, a novel low-voltage and fully integrated Step-up DC-DC converter for energy harvesting applications, designed in 130 nm CMOS technology is presented. Simulation results proved that the proposed step-up converter consisting of a differential cross-coupled architecture along with a latched charge pump enable us to boost up very low input voltages beyond 50 mV. The input voltage of 80 mV is converted to 1 V at a load resistance of 1 MΩ with a conversion efficiency of about 24%. The proposed converter consumes only 4.2-μW.
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