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:
Dec. 06, 2016
Filed:
Dec. 16, 2014
Applicant:
Mediatek Inc., Hsin-Chu, TW;
Inventor:
Wen-Hua Chang, Tainan, TW;
Assignee:
MEDIATEK INC., Hsin-Chu, TW;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03B 1/00 (2006.01); H03K 3/00 (2006.01); H03F 1/02 (2006.01); H03F 1/56 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
H03F 1/0205 (2013.01); H03F 1/56 (2013.01); H03F 3/45076 (2013.01); H03F 2203/45116 (2013.01); H03F 2203/45336 (2013.01);
Abstract
A line driver and a method for driving a load are proposed. The line driver includes a current amplifier and a feedback network. The current amplifier has an input node arranged to receive an input current of the line driver, and an output node arranged to produce an output current. The feedback network is coupled between the input node and the output node of the current amplifier, wherein a portion of the output current of the line driver is guided to the feedback network, and an equivalent impedance obtained by looking into the output node of the current amplifier with the feedback network substantially equals an impedance of the load.