Title:
POWER SOURCE DEVICE
Document Type and Number:
Japanese Patent JP2014204486
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To achieve reduction in the size of a reactor in the configuration of a power source device that includes a second DC power source in a load circuit.SOLUTION: A power source device comprises: a chopper circuit CH connected between a first DC power source E1 and a load circuit L; and a filter circuit FI including a filter coil L2 and a filter capacitor C, between the first DC power source E1 and the chopper circuit CH or between a second DC power source E2 and the chopper circuit CH. In the power source device, the DC current-inductance characteristic curve of the filter coil L2 and the DC current-inductance characteristic curve of the reactor 1 have an intersection. In an area where current is lower than the current value at this intersection, the inductance value of the reactor L1 is made larger than that of the filter coil L2.
Inventors:
KIHARA NOBUHIRO
YONEDA ISAO
DAIGO TORU
YONEDA ISAO
DAIGO TORU
Application Number:
JP2013076584A
Publication Date:
October 27, 2014
Filing Date:
April 02, 2013
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H02M3/155
Attorney, Agent or Firm:
Masuo Oiwa
Takenaka 岑 student
Keigo Murakami
Kenji Yoshizawa
Takenaka 岑 student
Keigo Murakami
Kenji Yoshizawa