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Article #5608High Frequency magnetic materials (and quickly)
From: Thomas A. Digiacomo
Date: Mon, 13 Aug 1990 19:30
Date: Mon, 13 Aug 1990 19:30
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Oh great gods of electrical engineering, I have an urgent request for info on magnetic core materials. I am building a high-frequency, low current, current transformer and would love to know what companies, if any, could supply a small toroid (inner diameter about 2 cm [ ~0.75 in.], outer diam. ~ 3 or 4 cm [~1.25 to 1.5 in.], thickness ~ 1 cm [~0.4 in.]) with a high initial relative permeability (500 to 5000) which will work into the 100MHz range. I realize that in most cases the trade-off between high initial perm and high frequencies limits what I can get. Siemens, for example, has a 1GHz material, but its initial perm is ~8. Most important to my application is bandwidth, so suggestions of initial perm.= ~250, bandwidth= ~200MHz would be gladly listened to. Thank you, and please hurry, I need this ASAP. Tom DiGiacomo thoad@athena.mit.edu
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!samsung!zaphod.mps.ohio-state.edu!usc!snorkelwacker!bloom-beacon!thoad From: thoad@athena.mit.edu (Thomas A. Digiacomo) Newsgroups: sci.electronics Subject: High Frequency magnetic materials (and quickly) Summary: Need sources fast of high freq. core materials Keywords: core, transformer, frequency, magnetics Message-ID: <1990Aug13.193044.12033@athena.mit.edu> Date: 13 Aug 90 19:30:44 GMT Sender: daemon@athena.mit.edu (Mr Background) Organization: Massachusetts Institute of Technology Lines: 20