Saturday, 4 August 2012

TRIANGULAR WAVE GENERATOR USING OP-AMP

Here am going to explain generation of triangular wave using 741 op-amp. Triangular waves can also be generated by integrating the output of symmetrical square wave generated by the astable multivibrator. The triangular waves are used for studies.
This circuit uses two operational amplifiers. Op-amp A1 fuctions as a comparator and op-amp A2 as an integrator. Comparator compares the voltage at point P continuisly with respect to the voltage at the inverting input, which is grounded potential. When the voltage at P goes slightly below zero , the output of A1 will switch to negative satuaration.