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:
Aug. 28, 2018

Filed:

Nov. 02, 2016
Applicant:

Progress Rail Locomotive Inc., LaGrange, IL (US);

Inventor:

James F. Wiemeyer, Homer Glen, IL (US);

Assignee:

Progress Rall Locomotive Inc., LaGrange, IL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/14 (2006.01); H02M 1/36 (2007.01); H02M 1/32 (2007.01);
U.S. Cl.
CPC ...
H02M 3/33507 (2013.01); H02M 1/14 (2013.01); H02M 1/32 (2013.01); H02M 1/36 (2013.01); H02M 3/335 (2013.01);
Abstract

An apparatus for providing surge-tolerant power to an appliance is provided. The apparatus includes an input circuit for receiving a source of DC voltage. The apparatus also includes a pass device having a first terminal, a control terminal and a second terminal. Further, the apparatus includes a first means for providing an output voltage based on an input of the pass device. The apparatus also includes a second means for applying a voltage to a control terminal of the pass device based on the output voltage. The voltage is sufficient to put the pass device into a low impedance state between the first terminal and the second terminal thereof.


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