Solar charging and narrow voltage dc/dc for batteries

摘要

Solar-powered systems typically require the system to operate from a very wide input voltage range due to the large variations in a solar panel's output voltage. This range limits the ability to optimize the system's overall power solution to consume maximum power from the solar cell under all light conditions. The ideal solar-charging application operates the solar cell at its maximum power point while simultaneously limiting the input voltage range of the system. This goal is achieved by integrating a narrow-voltage dc/dc (NVDC) battery-charging architecture with a solar charger design.