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:
Jun. 12, 2018

Filed:

Dec. 09, 2013
Applicant:

Electrolux Appliances Aktiebolag, Stockholm, SE;

Inventors:

Alessandro Cecco, Sedegliano, IT;

Paolo Driussi, Zoppola, IT;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/28 (2006.01); G01R 31/02 (2006.01); A47L 15/00 (2006.01); D06F 37/42 (2006.01); A47L 15/42 (2006.01); D06F 25/00 (2006.01); D06F 33/02 (2006.01); D06F 39/04 (2006.01); D06F 58/28 (2006.01);
U.S. Cl.
CPC ...
G01R 31/2825 (2013.01); A47L 15/0049 (2013.01); A47L 15/4293 (2013.01); D06F 25/00 (2013.01); D06F 33/02 (2013.01); D06F 37/42 (2013.01); D06F 39/04 (2013.01); D06F 58/28 (2013.01); G01R 31/025 (2013.01); D06F 2058/2887 (2013.01);
Abstract

A washing and/or drying appliance circuit system having an electric load, first and second power supply terminals, first and second switching elements operable for coupling/decoupling the power supply terminals to terminals of the electric load, a control unit for operating the switching elements, and a conditioning arrangement. The conditioning arrangement has a unidirectional signal flow element coupled between the first supply terminal for receiving a supply signal and the second load terminal, and an impedance arrangement coupled between the first load terminal and the control unit. With the first and second switching elements in the opened-states the first supply terminal, the unidirectional signal flow element, the electric load and the impedance arrangement define a conductive path providing a check signal to the control unit. The control unit is configured for determining a fault in the circuit system based on the check signal.


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