It is a common rule: All active components needs DC power to operate. After all, that is how they got their name "active", because they need DC power to operate. But that is about to change. Researchers from the University of Twente, Netherlands, have developed a new microchip, which integrates photovoltaic cells. These chips carry high-efficiency solar cells producing self-sufficient, low-power devices which are highly suitable for industrial serial production and can even operate indoors. Read the original article here.