@▷ Single supply Function Generator by TLC271 | Diagram for Schematic

Single supply Function Generator by TLC271

The circuit has both square-wave and triangle-wave output. The left section is similar in function to a comparator circuit that uses positive feedback for hysteresis. The inverting input is biased at one-half the Vcc voltage by resistor R4 and R5. The output is fed back to the non-inverting input of the first stage to control the frequency.
The amplitude of the square wave is the output swing of the first stage, which is 8V peak-to-peak. The second stage is basically an op amp integrator.
The resistor R3 is the input element and capacitor C1 is the feedback element. [...]

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