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:
Dec. 18, 2018
Filed:
Dec. 30, 2015
Freescale Semiconductor, Inc., Austin, TX (US);
Denis Shuvalov, Munich, DE;
NXP USA, Inc., Austin, TX (US);
Abstract
The present application relates to a circuit arrangement for sensing a current. The circuit arrangement comprises a current sense circuit configured to cause the sense current through a sense transistor, wherein the sense current is representative of a load current through a load transistor. The current sense circuit comprises a differential difference amplifier with a first differential input terminal pair coupled across the drain electrode and the source electrode of the load transistor and a second differential input terminal pair coupled across the drain electrode and the source electrode of the sense transistor. The current sense circuit is operable to force the same voltage difference value across the drain electrode and the source electrode of the load transistor as across the drain electrode and the source electrode of the sense transistor.