In that case, you have to reduce the base drive. Separate bias
and signals on the base would probably help.
I would change the series V2 and V3 into one current source - the
DC offset is the bias and the Amplitude provides your signal. You
can .STEP the DC offset to set different bias conditions.
Donald.
On 4/3/25 14:16, john23 via groups.io
wrote:
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Hello Donald ,Veb supposed to be forward biased so emitter?
needs to be less then base.
I tried to increase R1 drastickly but it didnt work.
could you help with mathematical way in my circuit to set it
into active mode?
The goal is to test small signal responce in saturation and
in active mode to see the difference.
Thanks.
