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In this paper a sliding mode controller is proposed for a continuous current mode buck converter. High proficiency and simplicity of implementation are the most significant features of the proposed controller. To fix the switching frequency of the converter, the sign function which generates the discontinuous control law in sliding mode controller, is replaced with a hysteresis relay whose cycle is...
Two different approaches to achieve robustness with respect to the input voltage, the reference voltage and the load variations in a step-down multiphase power converter are presented in this paper. The proposal allows both to regulate the output voltage to a given reference and to minimize the current ripple. Design is validated by means of simulation results.
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