Transistors switch on output pin or input pin

[KrisBlueNZ]

Sorry Davewalker5, I've lost interest in helping you. I find you to be too opinionated and big-headed, and too resistant to learning, and you are not being up-front with us.

 

[Davewalker5]

This means that the Vbe drops are identical.

When u guys say "tracking" u mean the VBE voltage change up and down the same, they are in union with each other?

When transistors i found were fluctuating in voltage was because the VBE junction was bad

The transistors collector pin voltage would be fluctuating because of the VBE junction was bad do to temperature or something else happen out in the field

 

[(*steve*)]

they are in union with each other

Yes, the ATJAEDU (the Amalgamated Transistor Junction and Electron Drifters Union)

 

[Davewalker5]

I'm not sure what makes the difference of having these FETS on the output pins

If I remove the FETS on the output pins, what would make the difference?

It seems like the FETS don't do much. Besides turning on and off


PICTURE#1
U5 has Q6 FET on the output, if i remove the FET what would be the difference?

PICTURE#4
U5 has Q7 FET and Q9 FET , if i remove the FET what would be the difference?

PICTURE#5
U9 has Q5 FET ,if i remove the FET what would be the difference?

picture last:
U20 has Q9 ,if i remove the transistor Q9 what would be the difference?
U21 has Q10 ,if i remove the transistor Q10 what would be the difference?

 

[davenn]

I'm not sure what makes the difference of having these FETS on the output pins

If I remove the FETS on the output pins, what would make the difference?

It seems like the FETS don't do much. Besides turning on and off


PICTURE#1
U5 has Q6 FET on the output, if i remove the FET what would be the difference?

PICTURE#4
U5 has Q7 FET and Q9 FET , if i remove the FET what would be the difference?

PICTURE#5
U9 has Q5 FET ,if i remove the FET what would be the difference?

picture last:
U20 has Q9 ,if i remove the transistor Q9 what would be the difference?
U21 has Q10 ,if i remove the transistor Q10 what would be the difference?

remove any of those and the circuit wont work properly

 

[davenn]

thread closed ... no longer going anywhere productive