A single phase full bridge inverter can operated in load commutation mode in case load consist of RLC critically damped. RLC underdamped. RLC overdamped. RL. TRUE ANSWER : ? YOUR ANSWER : ?
The maximum di/dt in a SCR is Directly proportional to supply voltage. Both A and B. Inversely proportional to supply voltage. Directly proportional to inductance in the circuit. TRUE ANSWER : ? YOUR ANSWER : ?
Practical way of obtaining static voltage equalization in series connected SCRs is by the use of resistors of different values across each SCR. resistors of the same value across each SCR. one resistor in series with each SCR. one resistor across the string. TRUE ANSWER : ? YOUR ANSWER : ?
Which one is most suitable power device for high frequency (>100 KHz) switching application? BJT. Schottky diode. Power MOSFET. Microwave transistor. TRUE ANSWER : ? YOUR ANSWER : ?
During which time maximum conduction spreading take place in the thyristor during turn ON? Spread time. Delay time. Same for every case. Rise time. TRUE ANSWER : ? YOUR ANSWER : ?
Dynamic equalising circuit is useful to limit di / dt of SCR. for voltage equalisation. both B and C. to limit dV / dt of SCR. TRUE ANSWER : ? YOUR ANSWER : ?
A thyristor will be triggered when Vg = 1.5 volt and Ig = 100 mA in the given figure. Calculate the value of R in ohm is 3.714. 37.14. 65. 60. TRUE ANSWER : ? YOUR ANSWER : ?
For an SCR gate cathode characteristic is a straight line of 130. For triggered source volume of 15 V and allowable gate power dissipation of 0.5 W compute the gate source resistance? 108 ohm 115 ohm 11.19 ohm 111.9 ohm TRUE ANSWER : ? YOUR ANSWER : ?