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A dual-mode Single-Input-Dual-Output converter with fully digital time-based Maximum-Power-Point-Tracking is presented to efficiently harvest indoor solar energy. The converter uses only three power switches to minimize the chip area and reduce the switching power loss, and dual-mode to accommodate the power imbalance between the Photovoltaic (PV) cell supply and the load requirement. Under sufficient...
A micro power management system is presented for solar energy harvesting applications. An inductor-less solution is proposed which facilitates on-chip integration of the system. We target at applications working in different lighting environments ranging from strong sunlight to dim indoor lighting where the output voltage from the photovoltaic (PV) cells is low. A charge pump is used to step the PV...
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