| Abstract |
Recent breakthrouqh in power transistors technoloqy enables speedinq up the development of HVDC for aeronautical applications. Concerning the power distribution, Solid State Power Controller (SSPC) are proving now to be a mature product, in a wide ranqe of current, from 1 to 60 Amp. However , dependinq of their implementation in the electrical power network, as well as of the loads they control, their features widely differ. This topic is aimed at describing the main features required and the corresponding technical and technoloqical innovative solutions for achieving them. Low current devices must comply with the most general requirements as low ON resistance, hiqh side and low side switching capabilities, short-circuit and overload protection, while high current devices incorporate more specific features like very low ON status drop out, active current limitinq for large capacitive loads, fault tolerance capability, internal DC/DC converter supplied by the power network. |
