Bunlaksananusorn, Chanin

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Bunlaksananusorn, Chanin
Alternative Name
Bunlaksananusorn, C.
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chanin.bu@kmitl.ac.th

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    Item type:Publication,
    Improvement of output dynamic performance of an average current mode controlled buck converter with a parallel controller
    (2010-09-17)
    Chrin, P.
    ;
    Trakuldit, S.
    ;
    Polmai, S.
    ;
    Bunlaksananusorn, C.
    This paper presents a parallel voltage controller to improve the output dynamic performance of a buck converter with Average Current Mode Control (ACMC). The parallel controller is a high-order controller synthesized from parallel connection of the two basic controllers. It is proposed to compensate the control-to-output transfer function of the converter, which has multiple poles and zeros. Up until now, the task is commonly performed by the two-pole one-zero controller, which is clearly not adequate and has somewhat limited the dynamic performance of the converter. In the paper, the design of parallel controller is illustrated with a 5V/2V ACMC buck converter. Experimental and simulated results that show the improvement of output voltage response to a step load change are presented. © 2010 IEEE.