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:
Jan. 16, 2018

Filed:

Mar. 18, 2015
Applicant:

Emerson Electric Co., St. Louis, MO (US);

Inventors:

Li Han, Xi'an, CN;

Liang Cao, Xi'an, CN;

Lihui Tu, Xi'an, CN;

Bradley C. Zikes, Sunset Hills, MO (US);

Assignee:

Emerson Electric Co., St. Louis, MO (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05D 23/19 (2006.01); H02M 3/158 (2006.01); H02H 3/20 (2006.01); H02H 9/04 (2006.01);
U.S. Cl.
CPC ...
G05D 23/19 (2013.01); H02H 3/202 (2013.01); H02H 9/04 (2013.01);
Abstract

Disclosed are exemplary embodiments of systems and methods for limiting DC voltage. In an exemplary embodiment, a DC voltage limiting circuit generally includes a current supply portion configured to receive a voltage input signal and provide a voltage output signal. A protective portion of the circuit is configured to limit or halt, at least temporarily, operation of the current supply portion based on a magnitude of the voltage input signal. A voltage level control portion is configured to limit the voltage output signal to a predetermined voltage level. In some embodiments, the DC voltage limiting circuit is provided in a climate control system controller.


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