This circuit produces a sinusoidal signal whose frequency can be calculated using the formula in the diagram. Next to this formula we have the calculated values ​​for a frequency of 1 kHz. The power supply does not need to be symmetrical, but its voltage influences the distortion of the generated waveform, giving preference to values ​​between 12 and 15 V. The adjustment of the symmetry of the waveform and its fidelity is done in the trimpot. The reference voltage can be obtained through a divider with two 10k ohm resistors in series.

 


| Clique na imagem para ampliar |