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. 07, 1999
Filed:
Jun. 12, 1998
Omid Shoaei, Allentown, PA (US);
Robert H Leonowich, Temple, PA (US);
Lucent Technologies, Inc., Murray Hill, NJ (US);
Abstract
In according with the principles of the present invention, a feedback circuit to compensate for process, temperature, and power supply variations in a typical integrated chip is provided. The feedback circuit increases the accuracy and functionality of an integrated chip by generating an output feedback current that is compensated for process, temperature and power supply variations. The feedback circuit comprises a top current mirror circuit, a bottom current mirror circuit, and a sensory circuit connected to the top current mirror circuit. The sensory circuit continuously senses the variations in the process, temperature and power supply and provides the feedback to top current mirror circuit. The top current mirror adjusts its parameters accordingly and therefore an output feedback current is generated which has necessary compensations for the process, temperature and power supply variations.