An analysis of linear and non linear controller on quasi resonant buck converter

Abstract

Advancement in semiconductor integrated circuit technology newlineresulted in noticeable reduction in size and weight of the electronic newlinecomponents owing to continuously increasing demand for high power density newlineswitched mode converter in aerospace systems satellite telecommunication newlineequipment and other fields Increase of operating frequency to increase power newlinedensity is constantly hampered by high switching loss and stress on newlinesemiconductor device To substantially reduce switching loss and to attain newlinehigh efficiency at an increased frequency it is imperative to replace the newlineswitch in the Pulse Width Modulated Converter by a resonant switch to create newlineZero Current Switching condition It is apparent that the switch in the Quasi newlineResonant Converter on and off at zero current to offer advantages such as newlineSelf commutation low switching stress and loss faster response to line and newlineload variations and reduced electromagnetic interference and noise newline newline