Title:
トランス装置
Document Type and Number:
Japanese Patent JP4223155
Kind Code:
B2
Abstract:
A transformer apparatus which can reduce a switching noise current flowing between a primary side ground and a secondary side ground is provided. The transformer apparatus includes a first core having a first primary winding wound around the first core, and second core having the substantially same structure as that of the first core, and having a second primary winding wound around the second core. The second primary winding is connected in parallel to the first primary winding. The transformer apparatus further includes a third core having a secondary winding around the third core, which is entirely and electrostatically shielded by a first conductor housing. The third core is arranged so as to be sandwiched between the first and second cores via first and second electrostatically shielding disks electrically connected to a second conductor housing. The first, second and third cores are electrically connected by the second conductor housing operating as one-turn winding, and are electrostatically and magnetically shielded from the outside of the transformer apparatus by the second conductor housing.
Inventors:
Haruhiko Yamanaka
Hideki Wakamatsu
Hideki Wakamatsu
Application Number:
JP24505599A
Publication Date:
February 12, 2009
Filing Date:
August 31, 1999
Export Citation:
Assignee:
AGILENT TECHNOLOGIES, INC.
International Classes:
H01F27/32; H01F27/36; H01F19/00; H01F30/00; H01F30/16; H01F3/10; H01F19/08
Domestic Patent References:
| JP5095026U |
Attorney, Agent or Firm:
Kimihisa Kato
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