I am not sure how to begin the calculations as I have not done pnp transistors before. Also I believe I have to start with the flow of current. Is VR2 a good place to start?
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You can do that, but then you have to subtract Vcc to get the voltage driving the PNP, which has its common reference at Vcc.Since all the voltages are referenced to the neg. term.
Shouldn't it still be analyzed as [VB = ECC x(R2 / (R1 + R2)] ?
The only rerason I interject this is, what if a schematic has both NPN and PNP transistors in it, then they need to learn to analyze according to where the ground symbol is placed.
Am I correct in assuming this ?
Thankyou.
by Jake Hertz
by Jake Hertz
by Jake Hertz