Patent ID: 7667988
Filing Date: 2010-02-23
Classification: H02H,H02J,H02M,Y02E

Abstract:
1. An EMC filter, for connection between a supply network having phase conductors and an electric operated appliance to reduce conduction noise between said supply network and said appliance, said filter comprising: a rectifier, for converting an AC voltage supplied by the supply network into a DC voltage, a voltage reducing circuit, for reducing said DC voltage, wherein said voltage reducing circuit comprises a voltage divider having a first set of capacitors and a second set of capacitors in a delta arrangement. each of the first set of capacitors directly connected to a respective one of the phase conductors of the supply network and each of the second set of capacitors connected between the first set of capacitors and the rectifier; and an electronic active circuit, supplied by said reduced DC voltage, for absorbing a noise current transmitted between said supply network and said appliance.