Title:
An uninterruptible power supply and an uninterruptible power source system using it
Document Type and Number:
Japanese Patent JP6243575
Kind Code:
B2
Abstract:
An uninterruptible power supply device (U1) includes a converter (40), an inverter (41), a bidirectional chopper (24), and a controller (53). The bidirectional chopper (24) includes first to fourth transistors (Q11-Q14), first to fourth diodes (D11-D14), and first and second, coils (51, 52). In a charging mode, the controller (53) causes the first and fourth transistors (Q11, Q14) to be complementarily turned on and controls the ON period of each of the first and fourth transistors (Q11, Q14) so as to cause respective detected values of first current and second current (11, 12) flowing through the first coil and the second coil (51, 52) to be equal to each other.
Inventors:
Kazuki Nishimura
Hiroshi Masunaga
Masahiro Kinoshita
Hiroshi Masunaga
Masahiro Kinoshita
Application Number:
JP2017509084A
Publication Date:
December 06, 2017
Filing Date:
April 01, 2015
Export Citation:
Assignee:
Toshiba Mitsubishi Electric Industrial Systems Co., Ltd.
International Classes:
H02J9/06
Domestic Patent References:
| JP2011147252A |
Foreign References:
| WO2010044164A1 | ||||
| WO2010100737A1 |
Attorney, Agent or Firm:
Fukami patent office