Applications of SiC device and module

What is a key advantage of Silicon Carbide (SiC) over Silicon (Si)?

• Lower Efficiency

• Higher Temperature Tolerance

• Lower Voltage Capability

• Larger Size

In a three-phase grid-tied inverter circuit, if the DC link capacitor (C) value decreases, how does this affect the inverter's ability to maintain a stable DC voltage?

• The inverter maintains stability

• The inverter experiences increased voltage ripple

• The inverter reduces power output

• The inverter improves efficiency

Which type of electric vehicle (EV) runs entirely on electric power stored in batteries?

• Hybrid Electric Vehicles (HEVs)

• Battery Electric Vehicles (BEVs)

• Plug-in Hybrid Electric Vehicles (PHEVs)

• Fuel Cell Electric Vehicles (FCEVs)

Given a typical MOSFET rating of 600-1200V and 200-500A in an EV traction inverter, if the switching frequency is doubled, what is the most likely impact on the thermal performance of the system?

• Reduced heat generation

• Increased cooling requirements

• Lower voltage output

• Increased reliability

What is the purpose of the traction inverter in an EV?

• Converts AC to DC

• Provides cooling to the motor

• Converts DC from the battery into AC to drive the motor

• Regulates the battery temperature

What is the main benefit of using glycol in EV inverter coolants?

• Low cost

• Better cooling efficiency

• High viscosity

• Prevents corrosion

If a Maximum Power Point Tracking (MPPT) circuit in a solar inverter fails to correctly track the peak power, how will the output voltage and current behave under fluctuating solar irradiance conditions?

• Both voltage and current will increase

• Voltage remains constant, but current fluctuates

• Power output decreases due to non-optimal conditions

• The system operates at maximum efficiency regardless

Which EV component is responsible for converting DC to a lower DC range for other purposes?

• Onboard Charger (OBC)

• DC-DC Converter

• Traction Inverter

• Motor Controller

In a diagram showing a dual active bridge (DAB) converter used in a solar grid-tie inverter, what would be the result if the phase shift between the two bridges is improperly controlled?

• Efficient power transfer

• Increased power losses

• Reduced electromagnetic interference (EMI)

• Improved converter stability

Which of the following is NOT a type of EV?

• BEV

• HEV

• FCEV

• ICEV