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:
Mar. 07, 2017

Filed:

Dec. 01, 2014
Applicant:

Honeywell International Inc., Morristown, NJ (US);

Inventor:

Paul Schwerman, Phoenix, AZ (US);

Assignee:

HONEYWELL INTERNATIONAL INC., Morris Plains, NJ (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/56 (2006.01); G05F 1/46 (2006.01); H02H 9/02 (2006.01); G05F 1/565 (2006.01); H02H 9/00 (2006.01);
U.S. Cl.
CPC ...
G05F 1/46 (2013.01); G05F 1/56 (2013.01); G05F 1/565 (2013.01); H02H 9/001 (2013.01); H02H 9/02 (2013.01);
Abstract

A circuit and method for controlling when a load may be fully energized includes directing electrical current through a current limiting resistor that has a first terminal connected to a source terminal of a field effect transistor (FET), and a second terminal connected to a drain terminal of the FET. The gate voltage magnitude on a gate terminal of the FET is varied, whereby current flow through the FET is increased while current flow through the current limiting resistor is simultaneously decreased. A determination is made as to when the gate voltage magnitude on the gate terminal is equal to or exceeds a predetermined reference voltage magnitude, and the load is enabled to be fully energized when the gate voltage magnitude is equal to or exceeds the predetermined reference voltage magnitude.


Find Patent Forward Citations

Loading…