Measuring IGBT Conduction Loss to Maximize Efficiency
Oct. 27, 2022
IGBT performance and efficiency is quantified by its switching loss while transitioning between ON-OFF states and conduction loss. Find out more about these interactions and the best ways to decrease switching losses to enhance overall efficiency.
Higher performance IGBTs are constructed with both an IGBT and a diode in the same semiconductor package where each contributes to the combined losses. Readers will learn one of the most effective ways to decrease switching losses through the manipulation of an IGBT’s voltage and current waveforms during the turn-ON and turn-OFF phases. The paper also illustrates how this approach helps to significantly reduce, or even eliminate, losses that occur during the overlap time.
This article describes the advantages of open-loop sensors over closed-loop current sensors. Examples of LEM and Honeywell open-loop sensors are described.
