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Title:
POWER MODULE AND POWER CONVERSION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2012/172825
Kind Code:
A1
Abstract:
A unit (10) is provided with semiconductor switch elements (1, 2), and diodes (3, 4). The diode (3) is reversely biased when the semiconductor switch element (2) is in the on-state, and a current is carried to the diode when the semiconductor switch element (2) is in the off-state. The diode (4) is reversely biased when the semiconductor switch element (1) is in the on-state, and a current is carried to the diode when the semiconductor switch element (1) is in the off-state. The diodes (3, 4) are gallium nitride (GaN) diodes or diamond diodes. A power module provided with the unit (10) is applied to power conversion circuits, such as converters and inverters. Consequently, performances of the power conversion circuits are improved.

Inventors:
HAYASHI, Hideki (1-3, Shimaya 1-chome, Konohana-ku, Osaka-sh, Osaka 24, 〒5540024, JP)
Application Number:
JP2012/051622
Publication Date:
December 20, 2012
Filing Date:
January 26, 2012
Export Citation:
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Assignee:
SUMITOMO ELECTRIC INDUSTRIES, LTD. (5-33, Kitahama 4-chome Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
住友電気工業株式会社 (〒41 大阪府大阪市中央区北浜四丁目5番33号 Osaka, 〒5410041, JP)
International Classes:
H02M7/48; H01L21/338; H01L29/12; H01L29/47; H01L29/778; H01L29/78; H01L29/80; H01L29/812; H01L29/872
Domestic Patent References:
WO2010150549A12010-12-29
WO2008149523A12008-12-11
WO2008041685A12008-04-10
WO2011052214A12011-05-05
Foreign References:
JP2011010404A2011-01-13
JP2010252568A2010-11-04
Attorney, Agent or Firm:
Fukami Patent Office, p.c. (Nakanoshima Central Tower, 2-7 Nakanoshima 2-chome, Kita-ku, Osaka-sh, Osaka 05, 〒5300005, JP)
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