Abstract
This paper presents a fixed frequency Digital implementation of Sliding Mode Control (SMC) for an integrated DC-DC buck converter working in the Continuous Conduction Mode (CCM). The proposed solution uses a single Analog to Digital Converter (ADC) to monitor the error voltage and was designed for low power consumption. A non-linear, tracking, ADC is used and the digital control is event-based. The even based ADC and control allow the minimization of the power required for the operation of the control and improve the converter efficiency even for low output currents. The high performance of the proposed control is clear when compared with other digital and analog state of the art solutions.
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