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:
Jun. 17, 2014
Filed:
Jun. 20, 2012
Roman Stuler, Karolinka, CZ;
Roman Stuler, Karolinka, CZ;
Semiconductor Components Industries, LLC, Phoenix, AZ (US);
Abstract
An integrated circuit includes a first pin for receiving a feedback signal, a second pin for receiving a current signal indicative of a current in a primary of a transformer, and a switching circuit coupled to the first and second pins and responsive to the feedback signal to determine a frequency at which to provide an upper drive signal and a lower drive signal, and further responsive to the current signal to change a value of the feedback signal when the current signal exceeds a first threshold, and to stop providing the upper and lower drive signals when the current signal exceeds a second threshold, the second threshold higher than the first threshold.