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:
Aug. 15, 2017
Filed:
Nov. 30, 2015
Nxp B.v., Eindhoven, NL;
Davide Maschera, Gratkorn, AT;
Herman Johannes Effing, Nijmegen, NL;
NXP B.V., Eindhoven, NL;
Abstract
A system for measuring high power currents, including: a low power transistor that is a scaled replica of a high power transistor of a high power driver; a regulator connected to the low power transistor, wherein the regulator is configured to regulate the current flowing through the low power transistor based upon a voltage sensed across the high power transistor and a chop signal; a current mirror with an input connected to the regulator and an output; a current detector having in input configured to receive the chop signal, wherein the current detector is connected to the output of the current mirror and wherein the current detector is configured to measure the current at the output of the current mirror to produce an estimate of the current flowing through the high power transistor.