Quiz 1 (Buck Converter)

What does a buck converter primarily do?

• Increases voltage

• Decreases voltage

• Maintains constant voltage

• Alternates voltage

In a buck converter, when the switch is ON, what is the path of current flow?

• Through the diode only

• Through the inductor only

• Through the switch and inductor

• Through the switch only

Which mode of operation allows the inductor current to never reach zero in a buck converter?

• Discontinuous Conduction Mode (DCM)

• Continuous Conduction Mode (CCM)

• Pulse Frequency Modulation

• Burst Mode

In a real buck converter, what is a significant cause of efficiency loss?

• Voltage spikes

• Current ripples

• Parasitic losses

• Inductor saturation

What is the primary role of the inductor in a buck converter?

• To store energy

• To convert AC to DC

• To filter the output voltage

• To block high-frequency signals

Which component in a buck converter acts as a free-wheeling diode when the main switch is off?

• Capacitor

• Inductor

• Diode

• Resistor

What is the effect of increasing the switching frequency of a buck converter?

• Decreases efficiency

• Increases output ripple

• Reduces inductor size

• Decreases output voltage

What is one major difference between an ideal and a real buck converter?

• Real converters have no inductors

• Ideal converters have unlimited power

• Real converters experience parasitic losses

• Ideal converters can't regulate voltage

What parameter is used to distinguish between CCM and DCM in buck converters?

• Switching frequency

• Inductor current

• Output voltage

• Input voltage

What happens to the output voltage when the duty cycle of a buck converter increases?

• It decreases

• It remains constant

• It increases