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. 18, 2017
Filed:
May. 08, 2015
Absolute value current-sensing circuit for step-down dc-to-dc converters with integrated power stage
Applicant:
Optis Circuit Technology, Llc, Plano, TX (US);
Inventor:
Vratislav Michal, Grenoble, FR;
Assignee:
OPTIS CIRCUIT TECHNOLOGY, LLC, Plano, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 19/165 (2006.01); G01R 19/00 (2006.01); H02M 3/156 (2006.01); H02M 3/158 (2006.01); H02M 1/00 (2006.01); H02S 50/10 (2014.01);
U.S. Cl.
CPC ...
G01R 19/16552 (2013.01); G01R 19/0084 (2013.01); G01R 19/0092 (2013.01); H02M 3/156 (2013.01); H02M 3/1588 (2013.01); H02M 2001/0009 (2013.01); H02S 50/10 (2014.12); Y02B 70/1466 (2013.01);
Abstract
A system for measuring an output current of a DC-to-DC converter with a transistor power stage includes a voltage measuring circuit and an impedance. The voltage measuring circuit, which is connected to the output of the power stage of the DC-to-DC converter, measures an average voltage drop on impedances of the transistors of the power stage. The impedance, which is connected to an output of the voltage measuring circuit, reproduces the impedances of the transistors of the power stage and is traversed by a scaled version of the current output of the voltage measuring circuit.