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:
Jul. 13, 2010
Filed:
Dec. 24, 2008
Applicant:
Kae-oh Sun, Uiwang-si, KR;
Inventor:
Kae-Oh Sun, Uiwang-si, KR;
Assignee:
Samsung Electronics Co., Ltd., Suwon-si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 3/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A power amplifying apparatus based on envelope elimination and restoration (EER) includes a voltage amplifier to amplify a high frequency component of an envelope signal, a switching amplifier to generate a low frequency component signal of a drain bias based on a first pulse width modulation (PWM) signal that corresponds to a low frequency component of the envelope signal, and a push-pull switch, connected to the switching amplifier in parallel, to add a high frequency component signal to an output of the switching amplifier by pushing or pulling current to or from the output of the switching amplifier.