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:
Feb. 10, 2009
Filed:
Dec. 05, 2006
Applicant:
Jong-haeng Lee, Daejeon, KR;
Inventor:
Jong-Haeng Lee, Daejeon, KR;
Assignee:
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/38 (2006.01); H03F 3/217 (2006.01);
U.S. Cl.
CPC ...
Abstract
A power amplifier circuit including a power transistor unit generating an output signal based on a predetermined pulse-width modulated signal. The power transistor unit includes a plurality of transistors and a delay circuit unit. The delay circuit unit sequentially drives the plurality of transistors with a predetermined time delay based on the pulse-width modulated signal.