DC/DC Conversion MCQs : This section focuses on the "DC/DC Conversion". These Multiple Choice Questions (MCQs) should be practiced to improve the DC/DC Conversion skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
____________ is the boundary for C.C.M and D.C.M mode in 3-? Half wave bridge rectifier for R load.
Buck-Boost acts as Boost converter for duty cycle is equal to _________
Buck-Boost acts as Buck converter for duty cycle is equal to _________
Calculate peak-peak voltage if Vmax=1 V and Vmin=-1 V.
A. 6 V
B. 2 V
C. 3 V
D. 1 V
Calculate the average value of thyristor current in 3-? Full wave converter for the load current=27 A and ?=6°.
A. 9 A
B. 4 A
C. 5 A
D. 9 A
Calculate the output voltage of the Boost converter if the supply voltage is 156 V and duty cycle value is .4.
A. 260 V
B. 264 V
C. 261 V
D. 268 V
Calculate the output voltage of the Buck converter if the supply voltage is 789 V and duty cycle value is .9.
A. 711.1 V
B. 710.1 V
C. 722.2 V
D. 713.2 V
Calculate the value of Crest factor if Vpeak=0 V and Vr.m.s=24 V.
Choppers are used to control the DC voltage level.
Cuk-converter is better than Buck converter in terms of the output voltage.
Inductor and Capacitor in Buck converter are used to ___________
A. Increase the cost
B. Decrease the cost
C. Filter out the harmonics
D. Increase the harmonics
What is the formula for output voltage for Boost converter?
What is the formula for output voltage for Buck-Boost converter?
B. Vin ÷ (1-D)
C. D×Vin ÷ (1-D)
D. D×Vin ÷ (1+D)
Which one of the following device is uncontrolled?
____________ is the boundary for C.C.M and D.C.M mode in 3-Φ Half wave bridge rectifier for R load.
Calculate the average value of thyristor current in 3-Φ Full wave converter for the load current=27 A and α=6°.
A. 9:00 AM
B. 4:00 AM
C. 5:00 AM
D. 9:00 AM