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. 31, 2021
Filed:
Oct. 03, 2018
Texas Instruments Incorporated, Dallas, TX (US);
JianQuan Liao, Shanghai, CN;
GuangYao Zhou, Shanghai, CN;
Yuqing Yang, Plano, TX (US);
Yongyi Wu, Shanghai, CN;
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
In described examples, a method of determining whether there is an open load fault in a test circuit includes closing a first switch to couple an input voltage to a first LC filter in which a first capacitor is coupled to a ground, the first LC filter coupled to a first terminal coupled to the test circuit; and closing a second switch to couple the input voltage to a second LC filter in which a second capacitor is coupled to the ground, the second LC filter coupled to a second terminal coupled to the test circuit. After the LC filters charge to the input voltage, the second switch is opened, and the second capacitor is discharged across a discharge resistor for a specified discharge time. The voltage across the discharge resistor falling below a reference voltage indicates that there is an open load fault in the test circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile