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:
Oct. 01, 2024

Filed:

Mar. 14, 2022
Applicant:

Himax Technologies Limited, Tainan, TW;

Inventors:

Yi-Lun Chiang, Tainan, TW;

Jia-Hui Wang, Tainan, TW;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/45 (2006.01); H03F 1/02 (2006.01); H03F 3/04 (2006.01); H03F 3/30 (2006.01);
U.S. Cl.
CPC ...
H03F 1/0205 (2013.01); H03F 3/04 (2013.01); H03F 3/3022 (2013.01); H03F 3/45183 (2013.01);
Abstract

An amplifier with enhanced slew rate includes an input stage including a first channel coupled to receive differential inputs and a second channel coupled to receive the differential inputs; a middle stage including a first current source coupled to receive outputs of the second channel and electrically connected to power, a second current source coupled to receive outputs of the first channel and electrically connected to ground, and a floating current source electrically connected between the first current source and the second current source; and an output stage coupled to the middle stage to generate an output voltage. A transit circuit is disposed in the input stage or the middle stage, controlled by the output stage, and configured to supply extra current during signal transition of the differential inputs, thereby enhancing the slew rate.


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