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:
Aug. 22, 2017
Filed:
Apr. 29, 2016
Applicant:
Realtek Semiconductor Corporation, Hsinchu, TW;
Inventor:
Po-Chih Wang, Hsinchu County, TW;
Assignee:
REALTEK SEMICONDUCTOR CORPORATION, Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/00 (2006.01); H03F 3/45 (2006.01); H03F 3/26 (2006.01);
U.S. Cl.
CPC ...
H03F 3/45475 (2013.01); H03F 3/265 (2013.01); H03F 2200/534 (2013.01); H03F 2200/537 (2013.01); H03F 2200/541 (2013.01);
Abstract
A driver suitable for driving a power amplifier is provided. The driver includes a voltage buffer circuit and a voltage transforming circuit. The voltage buffer circuit receives an input signal, buffers the input signal, and outputs a first output signal. The voltage transforming circuit receives the first output signal and outputs a second output signal to the power amplifier, in which an equivalent inductance of the voltage transforming circuit and an input capacitance of the power amplifier are arranged to make the voltage buffer circuit have a voltage gain approximated to 1.