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. 13, 1999
Filed:
Sep. 04, 1996
Burt L Price, Apex, NC (US);
Bruce J Tesch, Melbourne, FL (US);
Harris Corporation, Melbourne, FL (US);
Abstract
A trimmable current cell and method for providing an output current at a desired level which may be used to provide a particular current level for a digital-to-analog converter. The cell includes a first circuit with two fixed resistors connected in series which initially establish the output current, and a second circuit for trimming the output current from the first circuit to the desired level. The second circuit has a series-connected pair of trimmable resistors whose common node is connected to the first circuit at a common node between the fixed resistors. Trimming one of the trimmable resistors increases the output current to the desired level and trimming the other of the trimmable resistors decreases the output current to the desired level.