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:
Apr. 21, 2020

Filed:

Jan. 20, 2019
Applicant:

Realtek Semiconductor Corp., HsinChu, TW;

Inventors:

Hsin-Cheng Hsu, Hsinchu County, TW;

Tay-Her Tsaur, Hsinchu County, TW;

Po-Ching Lin, Hsinchu County, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/356 (2006.01); H03K 19/0185 (2006.01);
U.S. Cl.
CPC ...
H03K 3/356113 (2013.01); H03K 19/018521 (2013.01);
Abstract

A voltage level shifter circuit, including: a first control circuit, arranged to receive an input voltage and generate a first control signal; a first pull-down circuit, arranged to determine whether to pull down a first output voltage to a first reference voltage according to the first control signal; a first pull-up circuit, arranged to determine whether to pull up the first output voltage to a second reference according to a first inverse output voltage; a second control circuit, arranged to generate a second control signal according to the first output voltage; a second pull-down circuit, arranged to determine whether to pull down a second output voltage to the second reference voltage according to the second control signal; and a second pull-up circuit, arranged to determine whether to pull up the second output voltage to a third reference voltage according to a second inverse output voltage.


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