The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 29, 2005
Filed:
Nov. 01, 2002
Nicholas J. Decristofaro, Chatham, NJ (US);
Gordon E. Fish, Montclair, NJ (US);
Ryusuke Hasegawa, Morristown, NJ (US);
Carl E. Kroger, Aynor, SC (US);
Scott M. Lindquist, Myrtle Beach, SC (US);
Seshu V. Tatikola, Bridgewater, NJ (US);
Nicholas J. Decristofaro, Chatham, NJ (US);
Gordon E. Fish, Montclair, NJ (US);
Ryusuke Hasegawa, Morristown, NJ (US);
Carl E. Kroger, Aynor, SC (US);
Scott M. Lindquist, Myrtle Beach, SC (US);
Seshu V. Tatikola, Bridgewater, NJ (US);
Metglas Inc., Conway, SC (US);
Abstract
A bulk amorphous metal inductive device comprises a magnetic core having at least one low-loss bulk ferromagnetic amorphous metal magnetic component forming a magnetic circuit having an air gap therein. The component comprises a plurality of similarly shaped layers of amorphous metal strips bonded together to form a polyhederally shaped part. The device has one or more electrical windings and is easily customized for specialized magnetic applications, e.g. for use as a transformer or inductor in power conditioning electronic circuitry employing switch-mode circuit topologies and switching frequencies ranging from 1 kHz to 200 kHz or more. The low core losses of the device, e.g. a loss of at most about 12 W/kg when excited at a frequency of 5 kHz to a peak induction level of 0.3 T, make it especially useful at frequencies of 1 kHz or more.