ericsson.sunshine,
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Allow me to ask.? What is this for?? Is the plan to build one of these circuits (not just to simulate it) where it has a useful purpose?
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The first few circuits you uploaded were not oscillators; they were circuits to convert something like a square wave into a triangular or sawtooth wave.? As such, they were only one-half of the circuit you would need to design and build.
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Triangle or sawtooth wave oscillator circuits are very plentiful.? Is this your first venture into making sawtooth waves?? You should be able to find hundreds of them.
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I have little practical use for them anymore, but about fifty years ago I started studying and collecting them and quickly had assembled a collection of several dozen circuits to generate accurate triangle waves.
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If this were for simulations only, I'm sure you know that a PULSE voltage source makes an accurate sawtooth, with no artifacts.
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Have you considered other waveforms besides sawtooth, for dithering?
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In the last photo you uploaded (3 of 3), the peak of the sawtooth is rounded.? Is that any better than the other ones with the glitch near the peak?? Either waveform has a flawed derivative, dv/dt.
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Andy
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