The gate current required to turn on an SCR is

Related MCQs

• The minimum gate current which can turn on SCR is called :
• With gate open, the maximum anode current at which SCR is turned off from ON condition is called
• Once SCR starts conducting a forward current, its gate losses control over:
• A single-phase voltage controller, using one SCR in anti parallel with a diode, feeds a load R and Vs = 230 V. For a firing angel of 90° for the SCR, the PMMC voltage connected across R would read
• Turn-off time of an SCR is measured from the instant:
• An SCR is triggered at 40° in the positive half cycle only. The average anode current is 50 A. If the firing angle is changed to 80°, the average anode current is likely to be
• If the gate voltage of an SCR is removed, then the
• A resistor connected across the gate and cathode of an SCR in a circuit increases its
• If ton and toff are the turn on and turn off times of a thyristor, then
• A thyristor has a turn on time of 6 μs. If the anode circuit is inductive, the turn on time will be