Design of photovoltaic device and DC---DC converter on a single chip using 0.18 μm standard CMOS technology

摘要: In this paper, we propose a photovoltaic power supply for stand-alone system that provides electrical generation and voltage boost functions on single silicon chip. This consists of solar cells, an oscillator, bootstrap charge pump, which are all designed in 0.18 μm standard complementary metal-oxide semiconductor technology. Two types cells embedded the to improve its efficiency. One type is used other provide bias. Three different structures were designed. A pn structure np npn series-connected oscillator circuit operate DC---DC converter The voltage-current characteristics cell under microscopic illumination have been measured performance pump circuits was confirmed. We remodeled our equivalent reflect these measurement results.