Title:
CONTROLLER IC, DC/AC CONVERTER, AND PARALLEL OPERATION SYSTEM OF DC/AC CONVERTER
Document Type and Number:
WIPO Patent Application WO/2006/051854
Kind Code:
A1
Abstract:
A DC power supply voltage is supplied to the center tap of a primary winding. A first and a second semiconductor switch alternately turned on are provided between the two ends of the primary winding and a common potential point. Each of the semiconductor switches is PWM-controlled by feeding back the current flowing through a load. A snubber circuit is connected between the center tap of the primary winding and the ground in order to reduce an abnormal high voltage at the time of switching. Parallel operation of a plurality of inverters is facilitated by providing a PWM comparator corresponding to the first and the second semiconductor switch.
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Inventors:
FUKUMOTO KENICHI
AOYAGI YOUSUKE
AOYAGI YOUSUKE
Application Number:
PCT/JP2005/020605
Publication Date:
May 18, 2006
Filing Date:
November 10, 2005
Export Citation:
Assignee:
ROHM CO LTD (JP)
FUKUMOTO KENICHI
AOYAGI YOUSUKE
FUKUMOTO KENICHI
AOYAGI YOUSUKE
International Classes:
H02M7/48; H02M7/493
Foreign References:
| JPH06113555A | 1994-04-22 | |||
| JPS62130016A | 1987-06-12 | |||
| JP2004260992A | 2004-09-16 | |||
| JP2004222489A | 2004-08-05 | |||
| JPH11146648A | 1999-05-28 |
Attorney, Agent or Firm:
Oguri, Shohei (7-13, Nishi-Shimbashi 1-chom, Minato-ku Tokyo 03, JP)
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