Solar energy harvesting system with integrated battery management and startup using single inductor and 3.2nW quiescent power

This paper presents a 3.2nW quiescent power solar energy harvesting system. The control circuit is designed in an asynchronous fashion that scales the effective switching frequency of the converter with the level of the power transferred. The on-time of the converter switches adapts dynamically to the input and output voltages for peak-cu...More