Title:
POLYPHASE TRANSFORMER AND POWER CONVERTER
Document Type and Number:
Japanese Patent JP2023131718
Kind Code:
A
Abstract:
To provide a polyphase transformer that can easily set the number of turns of a third winding to a second winding constituting a secondary side, and to provide a power converter that can generate two types of DC voltages.SOLUTION: A polyphase transformer 1 includes a first winding 11 on a primary side to which three-phase power is connected, and a second winding 12 and a third winding 13 that constitute a secondary side, and the first winding 11 is delta-connected while the second winding 12 and the third winding 13 are both star-connected with the same number of turns, and the second winding 12 and the third winding 13 have a common neutral point. A full-wave rectifier circuit 2 includes a neutral terminal 22 connected to a common neutral point Q of the second winding 12 and the third winding 13, in addition to output terminals of a positive terminal 21a and a negative terminal 21b.SELECTED DRAWING: Figure 1
Inventors:
KATO AKIKUNI
Application Number:
JP2022036618A
Publication Date:
September 22, 2023
Filing Date:
March 09, 2022
Export Citation:
Assignee:
KAWAMURA ELECTRIC INC
International Classes:
H01F30/12; H02M7/08
Attorney, Agent or Firm:
Yoshiki Ishida
Kyouichi Ueda
Kiyotaka Sonoda
Kyouichi Ueda
Kiyotaka Sonoda