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This study presents the following: (i) detailed derivation of the expressions for the maximum value of the magnetising inductance of the ideal and lossy two-output flyback dc-dc convertor operating in discontinuous-conduction mode, (ii) a method to appropriately select the duty cycle for the metal-oxide-semiconductor field-effect transistor based on the rated output dc voltages of the two stages,...
This paper presents the steady-state analysis of series resonant converter (SRC) using the extended describing function (EDF) method. The EDF method is used to express non-linear terms of switching waveforms as linear descriptors to develop a linear model of the converter. The converter under consideration consists of a half-bridge inverter and a full-wave rectifier. The steady-state analysis in the...
A general expression for the loop gain of the inner-current loop of peak current-mode-controlled PWM dc-dc converters operating in continuous conduction mode (CCM) is derived as a function of perturbation ratio and switching frequency. It is shown that this expression is identical for all conventional PWM dc-dc converters in CCM, such as buck, boost and buck-boost converters. However, the value of...
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