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This work studies the dynamics of a single-phase full-bridge unity power factor boost AC-DC converter and develops a linear cascade resonant controller in order to meet two control objectives: to regulate the mean value of its DC output voltage and to drain from the network a sinusoidal current in phase with the sinusoidal source voltage, i.e. keeping the input power factor close to unity. The controller...
An improved control strategy for LCC current-output resonant converters is proposed. Small/large- signal converter models and the steady-state dynamics of the converter are used for controlling power- factor. The proposed method provides a convenient, linear control mechanism for the design of regulators, which has a similar influence to varying the DC-link supply voltage in terms of output- voltage/current...
This paper presents the analysis and design of a new 48 V/1.5 V voltage regulator module (VRM) for the standalone high-end servers, and notebook computer applications. The proposed VRM is based on the LLC-type resonant converter as it possesses much lower component stresses compared with the conventional series and series-parallel resonant topologies. Self- sustained oscillation control (SSOC) operation...
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