Title:
TRANSFORMER
Document Type and Number:
WIPO Patent Application WO/2016/072212
Kind Code:
A1
Abstract:
As a pre-stage circuit, the present invention is provided with: a switch series body in which an odd-numbered switch and even-numbered switch turn on alternately, and which as a whole is connected in parallel to a power source; a capacitor which, if the connection points between the switches in addition to both end points of the switch series body are said to constitute a total m number of nodes and either one of both said end points configured to be a ground node, is provided on a first electric circuit, in which odd-numbered nodes are bundled and led to a first output port, and/or on a second electric circuit, in which even-numbered nodes are bundled and led to a second output port, and is present in correspondence with (m-1) nodes, excluding the ground node; and a ground circuit which directly connects the ground node to the first output port without passing through the capacitor. As a post-stage circuit, the invention is provided with: an element series body which is formed by connecting, in series with each other, a pair of semiconductor elements performing conduction operations of opposite polarities, and in which one end of the series body is connected to the first output port and a ground contact end of a load, and the other end of the series body is connected to the second output port; and an inductor that is provided on a third electric circuit, which leads the non-ground contact end of the element series body to the ground contact end of the load, and a fourth electric circuit, which leads the connection point between a pair of semiconductor elements to the non-ground contact end of the load.
Inventors:
NAKAHATA HIDEAKI (JP)
HATSUKAWA SATOSHI (JP)
HIROTSU KENICHI (JP)
OHIRA TAKASHI (JP)
YAMADA KYOHEI (JP)
EGASHIRA DAIYA (JP)
HATSUKAWA SATOSHI (JP)
HIROTSU KENICHI (JP)
OHIRA TAKASHI (JP)
YAMADA KYOHEI (JP)
EGASHIRA DAIYA (JP)
Application Number:
PCT/JP2015/078731
Publication Date:
May 12, 2016
Filing Date:
October 09, 2015
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
NAT UNIV CORP TOYOHASHI UNIV (JP)
NAT UNIV CORP TOYOHASHI UNIV (JP)
International Classes:
H02M5/22; H02M3/155
Domestic Patent References:
| WO2015037455A1 | 2015-03-19 |
Foreign References:
| JP2013146181A | 2013-07-25 | |||
| JP2010074931A | 2010-04-02 |
Other References:
See also references of EP 3217528A4
Attorney, Agent or Firm:
SunCrest Patent and Trademark Attorneys (JP)
Patent business corporation Sun Crest international patent firm (JP)
Patent business corporation Sun Crest international patent firm (JP)
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