A Multisource Power Management Interface for Energy Harvesting Circuits
Acta Physica Polonica A(2019)
Abstract
In this paper, an efficient power management interface has been investigated using different green energy sources which are piezoelectric, radio frequency and thermal energy transducers. The piezoelectric transducer drives the rectifier. The radio frequency and thermal energy transducers drive Dickson charge pump and boost converter, and then a high-level voltage level selector circuit is used for the selection of the highest voltage level. Simulation results show that by using an efficient rectifier the efficiency of 80% can be achieved when the piezoelectric source is used. Moreover, the adaptive power management output the highest voltage level when any of the input sources is active. It is simulated using 180 nm CMOS structure and is implemented using discrete components.
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Key words
multisource power management interface,harvesting,energy,circuits
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