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:
Dec. 02, 1997
Filed:
May. 20, 1996
Richard B Salmonson, Chippewa Falls, WI (US);
Robert J Greener, Chippewa Falls, WI (US);
Mark Ronald Sikkink, Chippewa Falls, WI (US);
Robert J Lutz, Chippewa Falls, WI (US);
Max C Logan, Chippewa Falls, WI (US);
Richard G Finstad, Eau Claire, WI (US);
Cray Research, Inc., Eagan, MN (US);
Abstract
A method and apparatus for adjusting power supplied to a device when the device has a first and a second power input. A first voltage level and a ground potential are provided and a second voltage level is created as a function of the first voltage level. The second voltage level is then buffered with a power transistor and, if the second voltage level is needed for a particular device, the buffered second voltage level is selectively applied to the device. The circuit is disabled when the second voltage supply is not needed.