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:
Sep. 19, 2006
Filed:
Sep. 06, 2002
Steven R. Trimble, Prior Lake, MN (US);
Kelly M. Orth, Apple Valley, MN (US);
Richard L. Nelson, Chanhassen, MN (US);
David G. Tyson, Eden Prairire, MN (US);
Steven R. Trimble, Prior Lake, MN (US);
Kelly M. Orth, Apple Valley, MN (US);
Richard L. Nelson, Chanhassen, MN (US);
David G. Tyson, Eden Prairire, MN (US);
Rosemount Inc., Eden Prairie, MN (US);
Abstract
A process variable transmitter connects a serial bus to an accessory load. A supply limiter circuit provides a first supply current limit and provides a stored energy output. A recessive driver circuit draws a drive current from the stored energy output and couples the drive current to the serial bus. The recessive driver circuit provides a drive current limit. A dominant driver circuit has a dominant state in which it conducts the drive current, and an inactive state in which the drive current is available to the accessory load.