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- W1984677100 abstract "This article presents an investigation of the profitability of cryogenic power electronics at different cooling and ambient temperatures. Thermodynamic fundamentals of low-temperature refrigeration processes are considered and the Carnot efficiencies of state-of-the-art refrigerators are evaluated in order to establish the necessary power loss reduction for energetic profitability of low-temperature to cryogenic power electronic systems down to 77 K. In this context, special attention is paid to two loss contributions in a power electronic system which, based on investigations on active and passive components, show the greatest potential for loss reduction at low temperatures. These are the on-state losses of Si and GaN transistors and the DC winding losses of inductors. The analysis shows that over the entire low temperature range, the loss reduction in a cryogenic converter can hardly compensate for the electrical power required to provide the necessary cooling capacity when cooling against an ambient temperature of 300 K." @default.
- W1984677100 created "2016-06-24" @default.
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- W1984677100 date "1960-09-01" @default.
- W1984677100 modified "2023-09-26" @default.
- W1984677100 title "Problems of low temperature physics and thermodynamics" @default.
- W1984677100 doi "https://doi.org/10.1016/s0011-2275(60)80038-0" @default.
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