Skew Calibration with High-Power and High-Speed Pulse Generator for Oscilloscope

Abstract

Switching frequency of a power converter has increased because of recent development of power semiconductor devices. For measurements of switching waveforms in high-frequency power converters, it is important to precisely calibrate skew for an oscilloscope. In order to conduct skew calibration, we fabricate a high-power and high-speed pulse generator using a SiC power MOSFET. The skew of oscilloscope probes is discussed.