Title:
POWER CONVERSION DEVICE
Document Type and Number:
Japanese Patent JP3465589
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent a through-current from flowing into switching elements, and to reduce switching loss and switching noise.
SOLUTION: A switched capacitor circuit SC is constituted with a plurality of cells SCbi connected in series. Each cell SCbi is provided with four switching element Si1 to Si4 (i=1 to 5) in the bridge circuit and capacitors Ci which are connected parallel to each arm of the bridge circuit. A through-current preventing and consuming means comprising the parallel circuit of an inductor Li5 and diode Di5 is connected to each capacitor Ci. Consequently, this structure prevents the flow of the through-current, when the turning on and off of the switching elements Si1 to Si4 are changed over.
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| JPS5346633 | TRANSISTOR INVERTER |
Inventors:
Masato Ohnishi
Masahiro Naruo
Takashi Kanda
Kazuo Yoshida
Masahiro Naruo
Takashi Kanda
Kazuo Yoshida
Application Number:
JP14457198A
Publication Date:
November 10, 2003
Filing Date:
May 26, 1998
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS,LTD.
International Classes:
H02M7/537; (IPC1-7): H02M7/537
Domestic Patent References:
| JP947032A | ||||
| JP6351259A |
Attorney, Agent or Firm:
Keisei Nishikawa (1 person outside)
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