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.

Date of Patent:
May. 06, 2025

Filed:

Dec. 05, 2022
Applicant:

Realtek Semiconductor Corporation, Hsinchu, TW;

Inventors:

Chien-Hui Tsai, Hsinchu, TW;

Hung-Chen Chu, Hsinchu, TW;

Yung-Tai Chen, Hsinchu, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 17/693 (2005.12); H03H 11/28 (2005.12); H03K 17/687 (2005.12);
U.S. Cl.
CPC ...
H03K 17/693 (2012.12); H03H 11/28 (2012.12); H03K 17/6872 (2012.12); H03K 17/6874 (2012.12);
Abstract

An output stage of an Ethernet transmitter is provided. The output stage is coupled to a resistor and includes a first output terminal, a second output terminal, a first transistor, and a first transistor group. The resistor is coupled between the first output terminal and the second output terminal. The first transistor has a first source, a first drain, and a first gate, the first source being coupled to a first reference voltage and the first drain being coupled to the second output terminal. The first transistor group is coupled to the first reference voltage and the first output terminal. The first transistor group includes multiple transistors which are connected in parallel, and the magnitude of the current flowing to the first output terminal is related to the number of transistors that are turned on.


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