Double Pulse Testing of Si and SiC in LTSpice

What is the primary purpose of conducting a double pulse test on a MOSFET?

• To evaluate the gate charge

• To determine the breakdown voltage

• To assess switching losses

• To measure the thermal resistance

Which component is used to speed up the simulation time in the double pulse test setup?

• Freewheeling diode

• Inductive load

• Capacitor

• Resistor

During the double pulse test, what is the focus of the first pulse?

• On instant

• Off instant

• Gate charge

• Thermal resistance

What is the significance of the inductor in the double pulse test?

• It stores energy for the test

• It provides a constant current

• It acts as a voltage source

• It reduces switching losses

How is the transition time estimated during the test?

• By measuring the gate voltage

• By observing the current and voltage changes

• By calculating the power loss

• By checking the temperature rise

What is the main difference observed when comparing silicon and silicon carbide MOSFETs?

• Silicon carbide MOSFETs have higher voltage ratings

• Silicon MOSFETs are more temperature stable

• Silicon MOSFETs have lower switching losses

• Silicon carbide MOSFETs have shorter transition times

What additional input is required for the silicon carbide MOSFET in the test setup?

• Gate voltage

• Source voltage

• Drain current

• Temperature reference

Why is it important to compare simulation results with practical tests?

• To verify the simulation model

• To ensure the test setup is correct

• To account for parasitics and spikes

• To measure the exact power loss

What role do measurement tools play in the accuracy of the double pulse test?

• They control the gate voltage

• They determine the switching frequency

• They affect the bandwidth and speed

• They measure the thermal resistance

How can the double pulse test be used to evaluate gate drivers?

• By assessing the driver's ability to handle current

• By comparing different driver voltages

• By measuring the gate charge

• By testing the driver's thermal stability