Explanation: In practice, each inverting and non-inverting terminal needs a series resistance to prevent excessive differential current flow because the inputs of the op-amp are subjected to large differential voltages. 9. Why zener diode is used at the output terminal of square wave generator?
A. To reduce both output and capacitor voltage swing
B. To reduce output voltage swing
C. To reduce input voltage swing
D. To reduce capacitor voltage swing
Answer:A
Explanation: In practice, each inverting and non-inverting terminal needs a series resistance to prevent excessive differential current flow because the inputs of the op-amp are subjected to large differential voltages. 9. Why zener diode is used at the output terminal of square wave generator?
A. To reduce both output and capacitor voltage swing B. To reduce output voltage swing C. To reduce input voltage swing D. To reduce capacitor voltage swing
Explanation: A reduced peak-peak output voltage swing can be obtained in the square wave generator by using back to back zener diodes at the output terminal. 10. A square wave oscillator has fo =1khz. Assume the resistor value to be 10kΩ and find the capacitor value?