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:
Jul. 28, 2015
Filed:
Sep. 30, 2011
Terry Dean Stark, St. Louis Park, MN (US);
Travis Edward Christle, Burnsville, MN (US);
Francis J. Judson, Circle Pines, MN (US);
Michael G. Miller, Andover, MN (US);
Terry Dean Stark, St. Louis Park, MN (US);
Travis Edward Christle, Burnsville, MN (US);
Francis J. Judson, Circle Pines, MN (US);
Michael G. Miller, Andover, MN (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
Systems for determining differential and average temperatures from resistive temperature devices are provided. In one embodiment, a device comprises a bridge network including a first node and second node, wherein the first node receives a constant current from a current source; a first branch coupled between a first node and a second node, the first branch including a first temperature sensing element of a first resistive temperature device; a second branch coupled in parallel with the first branch between the first node and the second node, the second branch including a second temperature sensing element of a second resistive temperature device; a first output that provides a signal representing a difference between a voltage developed across the first temperature sensing element and a voltage developed across the second temperature sensing element; and a second output that provides a signal representing a voltage developed across first node and the second node.