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Design of a two‐output forward converter with an output voltage objective function
Author(s) -
Lo YuKang,
Chen JunTing,
Song TzeHerng,
Ou ShengYuan
Publication year - 2011
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.696
Subject(s) - duty cycle , control theory (sociology) , weighting , voltage , function (biology) , transfer function , range (aeronautics) , computer science , set (abstract data type) , engineering , control (management) , electrical engineering , medicine , artificial intelligence , evolutionary biology , aerospace engineering , biology , radiology , programming language
A new method is proposed in this paper to distribute the steady‐state output voltage errors in a two‐output forward converter. The cross regulation between the two output voltages are described in terms of the circuit parameters. An objective function is formed for each of the two outputs to track its reference within the specified error. The legitimate duty cycle range is located through the transfer characteristics between the duty cycle and the load currents. The weighting feedback gains of the two output voltages can be determined by the presented control scheme which optimizes the objective function. The proposed method is suitable for a two‐output system without a dominant load. Experiments on a prototype are conducted to show that there exist a duty cycle range and a set of weighted feedback gains minimizing the defined objective function. Copyright © 2010 John Wiley & Sons, Ltd.