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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.

Patent No.:

US 9722514 B1

PDFFull Text
Date of Patent:
Aug. 01, 2017

Filed:

Apr. 07, 2014

Motor drive and method of controlling a temperature of a motor drive

Applicant:

Control Techniques Limited, Newtown, GB;

Inventor:

James Frank Chmielewski, Prior Lake, MS (US);

Assignee:

NIDEC CONTROL TECHNIQUES LIMITED, Newtown, GB;

Attorney:

Harness, Dickey & Pierce, P.L.C.

Primary Examiner:

Jorge L Carrasquillo

Int. Cl.
CPC ...
G05D 23/00 (2006.01); H02P 3/06 (2006.01); H02M 1/32 (2007.01); H02P 3/12 (2006.01); H02K 9/22 (2006.01); B60L 1/00 (2006.01); B60L 1/08 (2006.01); B60L 3/00 (2006.01); B60L 7/06 (2006.01); B60L 11/18 (2006.01); B60L 15/20 (2006.01); H02P 3/22 (2006.01); H02P 29/68 (2016.01);
U.S. Cl.
CPC ...
H02P 3/06 (2013.01); B60L 1/003 (2013.01); B60L 1/08 (2013.01); B60L 3/0061 (2013.01); B60L 7/06 (2013.01); B60L 11/1803 (2013.01); B60L 15/2009 (2013.01); H02K 9/22 (2013.01); H02M 1/32 (2013.01); H02P 3/12 (2013.01); H02P 3/22 (2013.01); H02P 29/68 (2016.02); B60L 2210/30 (2013.01); B60L 2240/36 (2013.01); B60L 2240/425 (2013.01); B60L 2240/662 (2013.01); Y02T 10/645 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/7241 (2013.01); Y02T 10/7275 (2013.01); Y02T 10/7291 (2013.01); Y02T 90/16 (2013.01);
Abstract

There is provided a motor drive comprising: a temperature sensor arranged to sense a temperature of the drive; a braking resistor; switching means arranged when activated to cause current to flow to the braking resistor; and controlling means arranged to activate the switching means when the sensed temperature falls below a predetermined threshold. There is also provided a method of controlling a temperature of a motor drive comprising a braking resistor. The method comprising comprises: monitoring a temperature of the drive; and activating switching means to cause current to flow to the braking resistor when the monitored temperature falls below a predetermined threshold.

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