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:
Nov. 17, 2020

Filed:

Nov. 19, 2019
Applicant:

Honeywell International Inc., Morris Plains, NJ (US);

Inventor:

Paul M. Werking, Rockford, MN (US);

Assignee:

Honeywell International Inc., Charlotte, NC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 19/003 (2006.01); H03K 19/00 (2006.01); H03K 19/0185 (2006.01);
U.S. Cl.
CPC ...
H03K 19/00361 (2013.01); H03K 19/0013 (2013.01); H03K 19/00315 (2013.01); H03K 19/00384 (2013.01); H03K 19/018521 (2013.01);
Abstract

A source-coupled logic (SCL) gate configured to reduce power supply noise generation and reduce DC power consumption by adjusting a bias current to deliver only the performance level required for a given application. The SCL gate circuit arrangement includes a current mirror circuit with transistors configured as pull-up transistors. The pull-up transistors set the logical HIGH voltage level. The SCL gate circuit may also include voltage limiting devices configured to set the logical LOW voltage level. The current mirror circuit and the voltage limiting devices allow the SCL gate to receive a bias current supplied a bias circuit that is less complex than bias circuitry used by other examples of SCL circuitry. Adjusting the bias current delivers the desired performance with the commensurate reduction in power consumption.


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