TY - JOUR ID - TI - SOFT SWJTCHING PWM AC/DC CONVERTER مغير القدرة AC/DC المضمن بعرض النبضة ذو التبديل الناعم AU - M.M. Ibrahim مصطفى محمد إبراهيم AU - R.S.Fyath رعد سامي فياض AU - A.S.Alsheraidah اسعد سليم الشريده PY - 2005 VL - 5 IS - 1 SP - 55 EP - 69 JO - Basrah Journal for Engineering Sciences مجلة البصرة للعلوم الهندسية SN - 18146120 23118385 AB - This paper presents a PWM AC/DC buck converter circuit incorporating a frontend rectifier followed by a DC/DC converter. Two transistors are used as a main and auxiliary switches. The proposed circuit provides zero-current (ZC) turn ON and zero-current/zero-voltage (ZCZV) turn OFF to the two transistors, besides zero-voltage turn ON to two diodes. Numerical methods are used to analyse and determine the performance of the converter system. A feedforward technique is employed to improve the performance of the converter over a range of output power.

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