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Title:
CONVERTER
Document Type and Number:
Japanese Patent JP3637713
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To feed electric power to output side whether a switching element is conducted or not, by forming a rectifier which is connected to the secondary winding of a high frequency transformer, out of half wave voltage doubler rectifier.
SOLUTION: High frequency voltage where DC voltage supplied by a DC power source 11 is turned off by a switching element 3 is applied to the primary winding 4a of a high frequency transformer 4. The high frequency voltage induced to the secondary coil 4b is subjected to half wave voltage doubler rectifier by a rectifying means 16 connected to the secondary winding 4b., and applied to a frequency converting circuit 7 through a filter 13. The electric current supplied to the frequency converting circuit 7 from the filter 13 is constant. A controlling means 8 controls the continuity time of switching elements 7a to 7d which form the switching element 3 and the frequency converting circuit 7 so that the output current of the frequency converting circuit 7 may be commercial frequency.


Inventors:
Shinichiro Sumiyoshi
Takaaki Okude
Nobuo Motoji
Kenji Takenaka
Yoshimi Iwamoto
Masaharu Ohashi
Hidekazu Yamashita
Hideki Omori
Application Number:
JP825797A
Publication Date:
April 13, 2005
Filing Date:
January 21, 1997
Export Citation:
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Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H02M3/28; H02M7/48; H02M7/5387; (IPC1-7): H02M7/48; H02M3/28; H02M7/5387
Domestic Patent References:
JP63257463A
JP7194142A
JP6245387A
JP4347582A
JP3032263A
Attorney, Agent or Firm:
Fumio Iwahashi
Tomoyasu Sakaguchi
Hiroki Naito