Title:
NOISE SUPPRESSION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2004/079902
Kind Code:
A1
Abstract:
A noise suppression circuit comprising windings (W11, W12) inserted into conductors (3, 4) in respective positions (P11a, P11b) and coupled together via a magnetic core (11), a winding (W13) coupled with windings (W11, W12) via the magnetic core (11), capacitors (12, 13) connected at each one end to the conductors (3, 4) in positions (P12a, P12b) and at each the other end to one end of the winding (W13), and windings (W14, W15) inserted into the conductors (3, 4) respectively in positions (P13a, P13b) and coupled together via a magnetic core (14). These reduce common-mode noises. Capacitors (16, 17) reduce normal-mode noises in collaboration with leakage inductance generated by the windings (W14, W15).
Inventors:
SAITOH YOSHIHIRO (JP)
WASAKI MASARU DI
WASAKI MASARU DI
Application Number:
PCT/JP2004/002545
Publication Date:
September 16, 2004
Filing Date:
March 02, 2004
Export Citation:
Assignee:
TDK CORP (JP)
WASAKI HITOMI HF (JP)
SAITOH YOSHIHIRO (JP)
WASAKI HITOMI HF (JP)
SAITOH YOSHIHIRO (JP)
International Classes:
H03H7/09; (IPC1-7): H03H7/09
Foreign References:
| JP2002204189A | 2002-07-19 | |||
| JP2000244272A | 2000-09-08 | |||
| JPH02241233A | 1990-09-25 | |||
| JPH0722886A | 1995-01-24 | |||
| JP2000201044A | 2000-07-18 | |||
| JPH04254308A | 1992-09-09 | |||
| JPH10163046A | 1998-06-19 | |||
| JPH09102723A | 1997-04-15 | |||
| JP2004080436A | 2004-03-11 | |||
| JP2002290289A | 2002-10-04 |
Attorney, Agent or Firm:
Hoshimiya, Katsumi (Toukou Building 15-7, Shinjuku 5-chome, Shinjuku-k, Tokyo 22, JP)
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