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:
Jun. 01, 2021

Filed:

Sep. 25, 2019
Applicant:

Novatek Microelectronics Corp., Hsin-Chu, TW;

Inventors:

Hsin-Hong Yang, Yunlin County, TW;

Yen-Cheng Cheng, Hsinchu, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/07 (2006.01); H03K 19/0185 (2006.01); H03F 1/02 (2006.01); H03K 17/687 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
H03K 19/018514 (2013.01); H03F 1/0205 (2013.01); H03F 3/45179 (2013.01); H03K 17/6871 (2013.01);
Abstract

An output stage circuit includes a first operational amplifier, a second operational amplifier, a switch circuit, a clamp circuit and at least one pull-low transistor. The first operational amplifier is operated in a first voltage domain. The second operational amplifier is operated in a second voltage domain. The switch circuit is coupled to the first operational amplifier and the second operational amplifier. The clamp circuit is coupled between the switch circuit and a plurality of output terminals of the output stage circuit. The at least one pull-low transistor is coupled to the switch circuit.


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