Abstract
Abstract: Digital control technique is a technique for high frequency switching mode power supply (SMPS). Being widely used in the new generation portable systems, the regulation requirement for high frequency integrated DC-DC switching mode power supply becomes more and more demanding in industry, at very high frequency beyond 10 Mega Hertz range. Analysis and experimental study of buck converter is presented to achieve desired output voltage. The SMPS are emerging in terms of higher dynamic response performances, less output ripple, smaller size and weight. The sliding mode controller is associated with a digital pulse width modulation (DPWM) block to operate at high switching frequency. Sliding mode control (SMC) can reduce the voltage ripple voltage ripple of SMPS. Sliding mode controller will be used by means of analog to digital conversion (ADC) and Digital pulse width modulation (DPWM). Keywords-Analog to Digital converter(ADC), Digital pulse width modulation(DPWM), Sliding mode control
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