Leakage current reduction for a double-leg boost converter by switching transition synchronisation

Abstract

With wide-bandgap transistors, the leakage current through the parasitic transistor to heat sink capacitance is increased with the operation at higher switching transition voltage slopes. This study presents a modulation synchronisation method for a double-leg boost converter to reduce these leakage currents. Having a similar leakage current path, the transistors turn-on transition of one leg is synchronised on the turn-off transition of the second leg.

Keywords

• leakage currents
• wide band gap semiconductors
• heat sinks
• switching convertors
• transistors
• turn-off transition
• transistor turn-on transition
• leakage current path
• modulation synchronisation method
• higher switching transition voltage slopes
• heat sink capacitance
• parasitic transistor
• wide-bandgap transistors
• transition synchronisation
• current reduction
• double-leg boost converter