IE - Converter and chopper

Choppers converter

• AC to DC
• DC to AC
• DC to DC
• AC to AC

A chopper may be thought as a

• Inverter with DC input
• DC equivalent of an AC transformer
• Diode rectifier
• DC equivalent of an induction motor

What is the duty cycle of a chopper ?

• Ton/Toff
• Ton/T
• T/Ton
• Toff x Ton

What is the range of duty cycle (α)?

• 0<α<1
• 0>α>-1
• 0<=α<=1
• 1<α<100

Find the odd one

• Buck Boose Converter
• Forward Converter
• Boost Converter
• Buck Converter

Which converter will give an output voltage which is always less than the Input voltage?

• Buck Converter
• Boost Converter
• Buck Boose Converter
• Cuk Converter

Find the output voltage expression for a step down chopper with Vs as the input voltage and α as the duty cycle.

• Vo = Vs/α
• Vo = Vs x α
• Vo = Vs2/α
• Vo = 2Vs/απ

What will be the output voltage of a buck converter with an input voltage of 25V, 40% duty cycle?

• 12 V
• 10 V
• 12.5 V
• 11.1 V

What is the other name for Buck Converter?

• Step Up converter
• Step Down converter
• Step Up - Down converter
• Step Down - Up Converter

Identify the circuit.

• Buck Converter - Switch is open
• Buck Converter - Switch is close
• Boost Converter - Switch is open
• Boost Converter - Switch is open