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:
Jan. 31, 2017
Filed:
Feb. 27, 2015
Dialog Semiconductor Inc., Campbell, CA (US);
Dialog Semiconductor (Uk) Limited, Reading, GB;
Andrey Malinin, Fort Collins, CO (US);
Tino Lin, Taipei, TW;
Jiandong Zhang, Sunnyvale, CA (US);
John Kesterson, Seaside, CA (US);
Qiu Sha, Cupertino, CA (US);
Dialog Semiconductor Inc., Campbell, CA (US);
Dialog Semiconductor (UK) Limited, Reading, GB;
Abstract
A power converter has a transformer including a primary winding coupled to an input voltage, a secondary winding coupled to an output of the power converter, and an auxiliary winding is configured to detect an open connection fault of the auxiliary winding. The power converter includes a current source coupled to the auxiliary winding that, when activated, supplies a current to the auxiliary winding. A controller measures a voltage across the auxiliary winding. Responsive to detecting an increase in the voltage across the auxiliary winding while the current source is activated, the controller disables the power converter.