Astable Multivibrators

Abstract

The role of the astable multivibrator is to supply energy in the form of rectangular signals from a d.c. source. The study of its operation can be divided into a number of sections:

• (a) principle of the astable multivibrator;

• (b) the physical explanation of the operation, with diagrams illustrating the signals at different points in the stage;

• (c) calculation of the instantaneous values of the voltage and current with control of the conditions of cut-off and saturation;

• (d) definition of the limiting values of voltage and current;

• (e) possibility of shaping the signals received at the output;

• (f) different types of circuit.