Synthesis of input-rectifierless AC/DC converters

This paper discusses the basic construction procedure and topological possibilities of creating AC/DC converters out of simple DC/DC converters. It is shown that two separately controlled DC/DC converters are sufficient for producing a regulated DC output and shaping the input current, from an AC vo...

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Bibliographic Details
Published inIEEE transactions on power electronics Vol. 19; no. 1; pp. 176 - 182
Main Authors Liu, C.P., Tse, C.K., Poon, N.K., Pong, B.M.H., Lai, Y.M.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.01.2004
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Alternating current
Analog-digital conversion
Bridge circuits
Circuit topology
Circuits
Converters
DC-DC power converters
Direct current
Distortion
Electric converters
Electric power
Frequency conversion
Phase distortion
Power supplies
Power supply
Rectifiers
Shape control
Topology
Voltage
Voltage control
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Summary:This paper discusses the basic construction procedure and topological possibilities of creating AC/DC converters out of simple DC/DC converters. It is shown that two separately controlled DC/DC converters are sufficient for producing a regulated DC output and shaping the input current, from an AC voltage source, without the need for input rectifiers. Some design constraints are discussed, emanating from the limitation of the conversion ratios that can be achieved by particular DC/DC converters. Selected topologies are verified experimentally. This kind of rectifierless converter find applications in airborne power supplies where zero-crossing distortions are significant because of the inevitable phase-lead effect of the input rectifier bridge.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2003.820577