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. 26, 2014
Filed:
Dec. 03, 2008
Jun Zheng, Guangdong, CN;
Eng Hwee Quek, Singapore, SG;
Huaming Guo, Guangdong, CN;
Dialog Semiconductor Inc., Campbell, CA (US);
Abstract
A switching power converter () comprises a transformer () with a parasitic capacitance (), a first switch () coupled to the transformer () and configured to couple or decouple a load () to or from a power source via the transformer (), a switch controller () coupled to the first switch () and configured to generate a switch drive signal () for turning on or off the first switch () according to switching cycles, and a bypass circuit configured to provide a bypass path for the parasitic elements such as the parasitic capacitance (). The bypass circuit may be coupled in parallel with the auxiliary winding (), the primary winding (), or the secondary winding () of the transformer (). High frequency ringing and EMI/RFI is reduced when the bypass circuit is enabled.