The operation of my circuit is quite simple,
It wouldn't be possible to control that PNP with a 0 or 5v input because in both cases the PNP bias would be 12-5=7v and 12-0=12v.
That is why the NPN transistor is used, to translate the 0-5v to 12v-0.
No the opposite, the transistor will always be ONin otherwords, VBE of the pnp would be too high in both cases (7V & 12V), and could never be turned ON?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?