Title:
BRIDGE CONVERTER AND METHOD OF CONTROLLING SAME
Document Type and Number:
Japanese Patent JPS58130777
Kind Code:
A
Abstract:
A rectifier system in which the harmonic content of the A.C. current is reduced in a particularly efficient manner. Two or more 3-phase thyristor bridges are connected in parallel to the A.C. supply, and to the DC output by way of interphase-transformers. For the positive thyristors, and for the negative thyristors separately, the conduction transitions within each bridge are staggered from one bridge to the next so that the total conduction on each phase follows a stepped characteristic approaching a sine wave and thus having a smaller harmonic content than a comparable arrangement having uniform firing angles from bridge to bridge.
Inventors:
DEIBIDO FUINII
Application Number:
JP17747882A
Publication Date:
August 04, 1983
Filing Date:
October 08, 1982
Export Citation:
Assignee:
JII II SHII ERIOTSUTO AUTOMATI
International Classes:
H02M7/17; H02M7/12; H02M7/48; H02M7/49; (IPC1-7): H02M7/155
Attorney, Agent or Firm:
Nobuyuki Iida
Previous Patent: JPS58130776
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