Explanation: A diode connected at the output of time marker generator circuit converts the sinusoidal signal into a train of positive pulses. So, these pulses are used in triggering the monoshot, SCR, sweep voltage of CRT, etc. 14. Which among the following is used to increase phase angle between different voltages?
A. Phase detector
B. Window detector
C. Zero crossing detector
D. None of the mentioned
Answer:A
Explanation: A diode connected at the output of time marker generator circuit converts the sinusoidal signal into a train of positive pulses. So, these pulses are used in triggering the monoshot, SCR, sweep voltage of CRT, etc. 14. Which among the following is used to increase phase angle between different voltages?
A. Phase detector B. Window detector C. Zero crossing detector D. None of the mentioned
Explanation: Phase angle between different voltages can be measured using phase detector circuit. The corresponding voltage to be measured is converted into spikes and the time interval between the pulse spikes is measured, which is proportional to the phase difference. 15. For the comparator shown below, determine the transfer curves if an ideal op-amp with VZ1= VZ2=9v.