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:
Mar. 04, 2014
Filed:
Dec. 23, 2011
Ta-yung Yang, Mulpitas, CA (US);
LI Lin, Taipei, TW;
Jung-sheng Chen, Kaohsiung, TW;
Chih-hsien Hsieh, Changhua County, TW;
Yue-hong Tang, Nantou County, TW;
Ta-Yung Yang, Mulpitas, CA (US);
Li Lin, Taipei, TW;
Jung-Sheng Chen, Kaohsiung, TW;
Chih-Hsien Hsieh, Changhua County, TW;
Yue-Hong Tang, Nantou County, TW;
System General Corporation, Taipei Hsien, TW;
Abstract
An adaptive filter circuit for sampling a reflected voltage of a transformer of a power converter includes a first switch for receiving the reflected voltage, a resistor having a first terminal and a second terminal, the first terminal of the resistor being coupled to the first switch, a capacitor coupled to the second terminal of the resistor for holding the reflected voltage, and a second switch coupled to the resistor in parallel, wherein the resistor and the capacitor develop a filter for sampling the reflected voltage which is sampled without filtering by the filter in a first period during a disable period of a switching signal and also sampled with filtering by the filter in a second period during the disable period of the switching signal.