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:
May. 06, 2008
Filed:
Sep. 12, 2005
Michael J. Hennessy, Ballston Lake, NY (US);
John N. Park, Rexford, NY (US);
Otward M. Mueller, Ballston Lake, NY (US);
Eduard K. Mueller, Ballston Lake, NY (US);
Michael J. Hennessy, Ballston Lake, NY (US);
John N. Park, Rexford, NY (US);
Otward M. Mueller, Ballston Lake, NY (US);
Eduard K. Mueller, Ballston Lake, NY (US);
Other;
Abstract
Switching losses and conduction losses are isolated by networks which are partially cryogenic and partially at room temperature. Switching losses are independent of temperature. Advantageously the switching losses are taken in a snubber network at room temperature and conduction losses are incurred at cryogenic temperatures, where majority carrier devices like MOSFETs operate with ultra low on-state resistance and corresponding low conduction losses. Low loss leads carry current efficiently from the cryogenic environment to room temperature without adversely affecting refrigeration. Switch and snubber network may both operate cryogenically.