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. 24, 2006
Filed:
Sep. 17, 2004
Harry Rodriguez, Gilroy, CA (US);
Anatoly Shteynberg, San Jose, CA (US);
Mark D. Telefus, Orinda, CA (US);
Mark D. Eason, Hollister, CA (US);
Harry Rodriguez, Gilroy, CA (US);
Anatoly Shteynberg, San Jose, CA (US);
Mark D. Telefus, Orinda, CA (US);
Mark D. Eason, Hollister, CA (US);
iWatt Inc., Los Gatos, CA (US);
Abstract
An AC-to-DC power converter controller reconstructs the output voltage of the power converter without a sample-and-hold circuit or an opto-coupler. The controller includes an accumulation module for accumulating a difference value obtained by subtracting a first representation of an output voltage of the power converter corresponding to a first sampling timing from the output voltage value sampled at a second sampling timing subsequent to the first sampling timing to obtain a second representation of the output voltage of the power converter corresponding to the second sampling timing. The accumulation module may set the second representation of the output voltage to a predetermined maximum value if the output voltage value sampled at the second sampling timing exceeds the predetermined maximum value, or to a predetermined minimum value if the output voltage value sampled at the second sampling timing is less than the predetermined minimum value.