Title:
スイッチング電源装置
Document Type and Number:
Japanese Patent JP4400632
Kind Code:
B2
Abstract:
A switching power supply unit is provided, in which input terminals (T5,T6) of an AC voltage (Vacin) can be made common to output terminals (T5,T6) of an AC voltage (Vacout). A first switching circuit (11) is provided between a winding (21) of a transformer (2) and a main battery (10). A second switching circuit (41) is provided between another winding (22) of the transformer (2) and input/output terminals (T5,T6). A third switching circuit (42) is provided between the second switching circuit (41) and the input/output terminals (T5,T6). Each of the first to third switching circuits includes a bidirectional switch (configured of a pair of one switching element (Q1-Q13) and one diode (D1-D13) connected in parallel to each other). A circuit for outputting an AC output voltage can be common to a circuit for inputting an AC input voltage to charge the main battery (10).
Inventors:
Yoshinobu Takayanagi
Application Number:
JP2007039551A
Publication Date:
January 20, 2010
Filing Date:
February 20, 2007
Export Citation:
Assignee:
tdk Corporation
International Classes:
H02M7/797; H02J7/00; H02J7/02; H02M7/12; H02M7/48
Domestic Patent References:
| JP2003153597A | ||||
| JP2001037226A | ||||
| JP2502421A | ||||
| JP2008109754A | ||||
| JP2008118727A | ||||
| JP10174437A |
Attorney, Agent or Firm:
Yasushi Santanzaki
Yoichiro Fujishima
Yoichiro Fujishima