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:
Mar. 01, 2011
Filed:
Mar. 21, 2008
James B. Phillips, Lake Geneva, IL (US);
Alan L. Ruff, Belvidere, IL (US);
James B. Phillips, Lake Geneva, IL (US);
Alan L. Ruff, Belvidere, IL (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A comparator circuit () has a first field effect transistor (FET) () with a supply voltage () connection and a diode connected FET () connected in series to form the first circuit leg of the comparator (). A second diode connected FET () and a second FET () in series form the second circuit leg. The first FET () and said second FET () are approximately equal sized FETs. Another embodiment is an integrated circuit () with two n-channel FETs. A first diode connected FET () is connected to the first n-channel FET () in series to form the first circuit leg of a comparator () and a second diode connected FET () is connected to a second n-channel FET () in series to form the second circuit leg of the comparator. The two n-channel FETs that form the differential pair are approximately equal in size. The trip point is high with respect to the supply voltage.