Alex T. Hoang

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The goal of this work is to minimize the required input power to achieve a net positive energy balance between incoming harvested energy and the energy costs of transforming the input signal to a useful voltage level. To reduce the energy requirements of our low voltage boost converter a low power timer is used to trigger the boosting operation. For low(More)
We study electronic phase transitions in the half-filled ionic Hubbard model with an on-site Coulomb repulsion U and an ionic energy Δ by using the coherent potential approximation. For a fixed and finite Δ two transitions from the band insulator via a metallic state to a Mott insulator are found with increasing U. The values of the critical(More)
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