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Simple sawtooth generator schematic simulation question

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Lucky-Luka

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I've tried to play a bit with the passives values of this circuit and I obtained max 2kHz freq signal.
Do you think that using this circuit I can obtain a 70kHz signal?
Would you suggest another kind of simple circuite for the purpose?
Thanks
 

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  • sawtooth-wave-gen.asc
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OMG... I have never told that I don't want to use a smaller cap... c'mon...
c'mon what?
That makes little sense. :rolleyes:
Do you know what determines the frequency of that circuit?
 
I reduced the voltage to 6, reduced the timing resistor and used diff. transistors. Works now at 387Hz. I think to reach 70KHz this circuit is gonna have to change a-lot.
 

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  • sawtooth-wave-gen-7-14-23.asc
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