Title:
MULTICHANNEL DC-DC CONVERTER
Document Type and Number:
WIPO Patent Application WO/2013/171924
Kind Code:
A1
Abstract:
Provided is a multichannel DC-DC converter that minimizes voltage fluctuations when multiple switching ICs are mounted. An input terminal (41) is respectively connected to a power supply input terminal (30A) of a control IC (3A) and a power supply input terminal (30B) of a control IC (3B), and power supply input terminal (30A) and power supply input terminal (30B) are connected together via internal wiring of a magnetic body. Additionally, since a via hole conductor (11A) and a via hole conductor (11B) penetrate into a multilayer substrate (2), which contains the magnetic body, in the lamination direction without being exposed to the outside, the respective via hole conductors function as inductors. Power supply input terminal (30A) of control IC (3A) and power supply input terminal (30B) of control IC (3B) are separated from each other at high frequencies by the inductors in order to minimize voltage fluctuations.
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Inventors:
NOMA TAKASHI (JP)
Application Number:
PCT/JP2012/079322
Publication Date:
November 21, 2013
Filing Date:
November 13, 2012
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H02M3/155; H01F37/00; H01L25/00; H02M1/14
Domestic Patent References:
| WO2008087781A1 | 2008-07-24 |
Foreign References:
| JP2004343976A | 2004-12-02 | |||
| JPH07322616A | 1995-12-08 | |||
| JP2005287226A | 2005-10-13 | |||
| JP2009171832A | 2009-07-30 |
Attorney, Agent or Firm:
Kaede Patent Attorneys' Office (JP)
Patent business corporation Kaede Patent Attorneys' Office (JP)
Patent business corporation Kaede Patent Attorneys' Office (JP)
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