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This paper presents a novel approach to compensate the voltage error due to switching dead times in voltage-fed inverters using a field-programmable gate array (FPGA) and current oversampling. The FPGA controls an analog-to-digital (AD) converter which operates at a high conversion rate and processes numerous current samples taken at equidistant time steps within each pulse width modulation (PWM)...
In multiphase buck converters, phases are dynamically added or dropped based on the output load, to improve efficiency. This is typically achieved by programming a lookup table containing the range of threshold currents for each phase, independent of input voltage and switching frequency. In this work, an algorithm is proposed to recalibrate the threshold currents for operation at optimum number of...
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