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:
May. 05, 2020
Filed:
Nov. 13, 2018
Applicant:
Texas Instruments Incorporated, Dallas, TX (US);
Inventor:
Zhong Ye, Plano, TX (US);
Assignee:
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/42 (2007.01); G05F 1/70 (2006.01); G01R 19/165 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/4208 (2013.01); G01R 19/16547 (2013.01); G05F 1/70 (2013.01); H02M 2001/0009 (2013.01); H02M 2001/0058 (2013.01);
Abstract
An apparatus includes an alternating current (AC) input node. The apparatus also includes a power factor correction (PFC) circuit with a first inductor coupled between the AC input node and a switch node. The apparatus also includes a switching analysis circuit for the PFC circuit. The switching analysis circuit includes a second inductor inductively coupled to the first inductor. The switching analysis circuit also includes a rectifier coupled to the second inductor. The switching analysis circuit also includes a sensing resistor coupled to the rectifier.