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. 28, 2026

Filed:

Aug. 02, 2024
Applicant:

Globalfoundries U.s. Inc., Malta, NY (US);

Inventors:

Dzung T. Tran, Austin, TX (US);

Navneet K. Jain, Milpitas, CA (US);

Uttam Saha, San Jose, CA (US);

Assignee:

GlobalFoundries U.S. Inc., Malta, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03K 19/0185 (2006.01); H03K 3/037 (2006.01); H03K 17/22 (2006.01);
U.S. Cl.
CPC ...
H03K 19/018521 (2013.01); H03K 3/037 (2013.01); H03K 17/223 (2013.01);
Abstract

Disclosed are voltage level shifters and an output driver including them. Each voltage level shifter includes an input section with first and second intermediate nodes and an output section connected thereto. Each voltage level shifter is configured to achieve desired outputs particularly when a voltage rail in a high voltage domain is powering up but a voltage rail in a low voltage domain is at 0.0V or when the voltage rail in the high voltage domain is powered up and the voltage rail in the low voltage domain is powering down. To achieve the desired outputs, the output section includes, among other components, two output stabilizing transistors series-connected to the second intermediate node and having gates connected to the first intermediate node and a feedback node, respectively. The input section includes, among other components, a pull-down transistor connected to the first intermediate node and controlled by the second intermediate node.


Find Patent Forward Citations

Loading…