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. 21, 2011
Filed:
Oct. 21, 2008
Ta-yung Yang, Milpitas, CA (US);
Chuh-ching LI, Taoyuan County, TW;
Sheng-fu Hsu, Taipei, TW;
LI Lin, Taipei, TW;
Jung-sheng Chen, Kaohsiung County, TW;
Ta-Yung Yang, Milpitas, CA (US);
Chuh-Ching Li, Taoyuan County, TW;
Sheng-Fu Hsu, Taipei, TW;
Li Lin, Taipei, TW;
Jung-Sheng Chen, Kaohsiung County, TW;
System General Corporation, Sindian, Taipei County, TW;
Abstract
An apparatus for detecting a switching current of the power converter, wherein the apparatus includes a signal generation circuit, a sample-and-hold circuit, and a calculating circuit. The signal generation circuit generates a sample signal in accordance with the pulse width of a switching signal. The sample-and-hold circuit is coupled to receive the sample signal and switching current signal for generating a first current signal and a second current signal. The calculating circuit is coupled to receive the first current signal and the second current signal for generating output signals. The switching signal is used for switching the magnetic device of the power converter, and the switching current signal is correlated to the switching current of the power converter; the output signals are correlated to the value of the switching current of the power converter.