Thin-film superconducting inductors for power electronics

Superconducting thin-film inductors promise to be key elements in high-frequency, high-power density, high-efficiency power supplies. A thin-film (0.6 mu m-thick) YB/sub 2/Cu/sub 3/O/sub 7/ inductor capable of handling currents up to 12 A DC was found to have a Q value of 1300 at 260 MHz and 77 K, a...

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Veröffentlicht in:	IEEE transactions on applied superconductivity 1993-09, Vol.3 (3), p.3059-3060
Hauptverfasser:	Mogro-Campero, A., Roshen, W.A., Turner, L.G., Black, R.D.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Copper Electronic equipment and fabrication. Passive components, printed wiring boards, connectics Electronics Exact sciences and technology Gold High temperature superconductors Power electronics Power supplies Spirals Superconducting epitaxial layers Superconducting thin films Superconducting transition temperature Thin film inductors
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Beschreibung
Zusammenfassung:	Superconducting thin-film inductors promise to be key elements in high-frequency, high-power density, high-efficiency power supplies. A thin-film (0.6 mu m-thick) YB/sub 2/Cu/sub 3/O/sub 7/ inductor capable of handling currents up to 12 A DC was found to have a Q value of 1300 at 260 MHz and 77 K, a factor of 20 higher than an identical inductor made of 15 mu m thick Cu; this improvement factor is shown to be >64 at lower frequencies (a few MHz).< >
ISSN:	1051-8223 1558-2515
DOI:	10.1109/77.234842