Questions & Answers of 555 Timers

Question No. 225

In the astable multivibrator circuit shown in the figure, the frequency of oscillation (in kHz) at the output pin 3 is __________

 

Question No. 33

In the following astable multivibrator circuit, which properties of vo(t) depend on R2?

Question No. 50

An astable multivibrator circuit using IC 555 timer is shown below. Assume that the circuit is oscillating steadily

The voltage Vc across the capacitor varies between

Question No. 53

Consider the Schmidt trigger circuit shown below.

A triangular wave which goes from -12 V to 12 V is applied to the inverting input of the OPAMP. Assume that the output of the OPAMP sings from +15 V to -15 V. The voltage at the non-inverting input switches between