Question

Q17 1) 2) An IGBT structure contains a parasitic thyristor. True False Q18 Q19 Ap A piece-wise linear characteristic curve contains non-linear segments 1) True 2) False Determine the did of the inductor current flowing through a 1 mH inductor immediately after a voltage of 100 V is applied to the inductor 0,1 Alus 100 A/ms 100 000 Als All of the above None of the above What is the ripple frequency of a full-wave bridge rectifier's output voltage fed 220 V 50 Hz 50 Hz 100 Hz 200 Hz 25 Hz None of the above. [20 Q20

Answer 1

17)true

A major effort in the development of the IGBT has been towards prevention of the latch up of the Parasitic thyristor . This has been achieved by modifying the dopping level & physical geometry of the Body region. The modern IGBT is latch up proof for all practical purprose.

18)

False

Piecewise linear circuit contains linear characteristics
Cuneni & voltage polacionship of inductor dt V2 = L dic 100v = 1x10 3 die die = 100 = 10 Option -3 =) 100 000 M/SOC

fi = 501 2 Sinput froquency nipple frequency of full wave bridge poctifier = 2fi = 2x50 - 100H2 option -2