One-step digital dead-time correction for DC-DC converters

  title={One-step digital dead-time correction for DC-DC converters},
  author={April Zhao and Armin Akhavan Fomani and Wai Tung Ng},
  journal={2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)},
This paper introduces a novel one-step digital control technique that can dynamically optimize the dead-times for the turn-on and turn-off of the power MOSFETs in DC-DC converters. A NOR gate and a delay-line circuit are used to detect and measure the duration of the unwanted low-side MOSFET body-diode conduction. Based on this measurement, the optimum dead-time is calculated on-the-fly and the DPWM controller will respond immediately to maximize the conversion efficiency in the next switching… CONTINUE READING
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