VCO

497

08:46:26

Basic VCO designed for LM358N opamps. Schematic is from the TI datasheet.

published 7 years ago

hurz

7 years ago

With some ugly hacks its workable within EC, however now it needs some explanations which components are just to please EC 😁 http://everycircuit.com/circuit/5536898021064704

ViolationMad

7 years ago

Yes i remeber that you used caps on the opamp inputs on other circuits but i got no idea what they are for...

hurz

7 years ago

Somehow they do help to find, while sim startup, the DC operating point for the circuit by being disabled, as consequence they are invisible the OpAmp is also greyed out and invisible. Its the same effect when you put a switch at an input and let them float while sim startup. Later while sim is running the caps are like a shorts even for DC, cuz OpAmp input have invinite input resistance, so no current flows. A better explanation I dont have.

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