Which following is a two terminal three layer device? BJT. None of above. Power dioed. MOSFET. TRUE ANSWER : ? YOUR ANSWER : ?
A thyristor can termed as Both a and B. DC switch. AC switch. Square wave switch. TRUE ANSWER : ? YOUR ANSWER : ?
Which statement is true for latching current ? It is related to conduction process of device. It is related to turn off process of the device. It is related to turn on process of the device. Both C and D. TRUE ANSWER : ? YOUR ANSWER : ?
If a latching current for the circuit shown in figure is 2 mA. Obtain the value of minimum width of the property turn ON the SCR? 3 µs. 3.1 µs 3.3 µs 3.2 µs TRUE ANSWER : ? YOUR ANSWER : ?
Figure shows two thyristors rated 400 A sharing a load current. Current through T2 is 180A. Current through T1 will be 100 A. 110 A. 120 A. 150 A. TRUE ANSWER : ? YOUR ANSWER : ?
CB used for over current protection of thyristor operates when the fault current is of long period. neither (A) nor (B). both (A) and (B). of short duration. TRUE ANSWER : ? YOUR ANSWER : ?
Which of following devices has highest di/dt and dv/dt capability? SITH. SIT. GTO. SCR. TRUE ANSWER : ? YOUR ANSWER : ?
During reverse recovery time charge carrier of junction J3 is swept out. charge carrier of junction J2 recombined. both B and C. charge carrier of junction J1 is swept out. TRUE ANSWER : ? YOUR ANSWER : ?
Which triggering is the most reliable? Gate triggering. Thermal triggering. dV / dt triggering. Forward voltage triggering. TRUE ANSWER : ? YOUR ANSWER : ?
Gate circuit or triggering circuit of a thyristor is lower power circuit. may be low power or high power circuit. magnetic circuit. high power circuit. TRUE ANSWER : ? YOUR ANSWER : ?