Hello everybody,
I am new to this forum and also to LTSpice.
I try to use this software to simulate a common-base Colpitts oscillator as described on the Wikipedia page.
https://fr.wikipedia.org/wiki/Oscillateur_Colpitts
I have tested this circuit on a breadboard vith a 3.3V power supply . It works and delivers a 1.3 Vpp sine wave at 16.72 MHz.
But I cannot get any sine wave with my simulation. The collector voltage goes to 3.3 V and stays there.
I suspect a bad configuration of the simulation parameters. I have used the .STARTUP directive in TRAN but without success.
I have also tryied Tina-TI from Texas. Same bad results.
Thank you for your help
MikeElec
I am new to this forum and also to LTSpice.
I try to use this software to simulate a common-base Colpitts oscillator as described on the Wikipedia page.
https://fr.wikipedia.org/wiki/Oscillateur_Colpitts
I have tested this circuit on a breadboard vith a 3.3V power supply . It works and delivers a 1.3 Vpp sine wave at 16.72 MHz.
But I cannot get any sine wave with my simulation. The collector voltage goes to 3.3 V and stays there.
I suspect a bad configuration of the simulation parameters. I have used the .STARTUP directive in TRAN but without success.
I have also tryied Tina-TI from Texas. Same bad results.
Thank you for your help
MikeElec
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