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Title:
TRANSFORMER FOR CONVERTING 3-PHASE AC INTO SINGLE-PHASE AC AND 6-STEP DC
Document Type and Number:
WIPO Patent Application WO/1984/004993
Kind Code:
A1
Abstract:
The primary side of a transformer for an electric device is constructed as a star-connection or a delta-connection, and the secondary side is constructed so that each phase produces two single-phase AC supplies in such a manner that one circuit of the three single-phase AC supplies produces a DC output, and another circuit inverts one phase using a P-N-P semiconductor and an N-P-N semiconductor, and this is combined with the other two phases to produce a single phase AC supply.

Inventors:
SAKURAI MASAMI (JP)
Application Number:
PCT/JP1983/000185
Publication Date:
December 20, 1984
Filing Date:
June 06, 1983
Export Citation:
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Assignee:
SAKURAI MASAMI
International Classes:
H01F30/14; H02M5/14; (IPC1-7): H01F33/00; H02M3/28; H02M7/06
Foreign References:
US3938025A1976-02-10
US4017784A1977-04-12
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