Title:
Voltage conversion circuit
Document Type and Number:
Japanese Patent JP6038282
Kind Code:
B2
Abstract:
A voltage conversion circuit that converts the voltage of a DC power supply connected to a low-voltage terminal (2) or a high-voltage terminal (3), and has a magnetic offset transformer (8) having a primary winding (9) and a secondary winding (10) that are magnetically bonded via a core (11) are wound in reverse at a turn ratio of 1:1. First and second reactors (21, 22) are individually connected to the primary winding (9) and the secondary winding (10) but are not shared as windings for same. The voltage conversion circuit also comprises: first and second switch elements (12, 14) that control the supply of power from the primary winding (9) to both a reference terminal (4) and the high-voltage terminal (3); and third and fourth switch elements (16, 18) that control the supply of power from the secondary winding (10) to both the reference terminal (4) and the high-voltage terminal (3). The inductance (Lc) of the primary winding (9) and the secondary winding (10) is set to a range of 1 to 10 times the inductance (Ld) of the first and second reactors (21, 22).
Inventors:
Tatsuya Kitamura
Masaki Yamada
Shigeki Harada
Masaki Yamada
Shigeki Harada
Application Number:
JP2015505112A
Publication Date:
December 07, 2016
Filing Date:
March 12, 2013
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H02M3/155
Domestic Patent References:
| JP2008192931A | 2008-08-21 | |||
| JP2006149054A | 2006-06-08 | |||
| JP2009273280A | 2009-11-19 | |||
| JP2005124302A | 2005-05-12 |
Attorney, Agent or Firm:
Keigo Murakami
Masuo Oiwa
Kenji Yoshizawa
Takenaka Ikuo
Masuo Oiwa
Kenji Yoshizawa
Takenaka Ikuo