Patent · US Active

Circuit arrangements for operating a household appliance

US8422251B2 · kind B2 · utility

0Cited by

8References

24Claims

0Family size

Assignee

BSH Bosch und Siemens Hausgeräte GmbH · DE

Inventors

Martin Bischoff · Großhelfendorf, DE
Lothar Knopp · Berlin, DE
Thomas Ludenia · Falkensee, DE
Guido Sattler · Falkensee, DE

Key dates

Filing date	Nov 5, 2008
Grant date	Apr 16, 2013
Priority date	—
Expiry date	May 4, 2030

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD06F34/10
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A circuit for operating a household appliance, wherein the circuit includes a switched-mode power supply for converting the power supply of a public power supply network into direct supply voltage. The circuit also includes a controller that is connected to the switched-mode power supply for being supplied with the direct supply voltage and for controlling processes of the household appliance. An EMC filter is provided to protect the public supply network from interference signals from the household appliance. The EMC filter includes a condenser that is connected between a phase conductor pole and a neutral conductor pole of the public power supply network; a bleeder resistor that is connected in parallel with the condenser; and a switch that can be activated by the controller to connect the condenser and the bleeder resistor to the neutral conductor pole.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.