All Questions
Tagged with semiconductors pnp
7
questions
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2
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120
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Transistor: Getting “incorrect” graph for input voltage to output voltage
I tried drawing the graph of \$v_o\$ vs \$v_i\$ for a bipolar junction transistor. I used the below setup (common emitter:)
By design of how the base is a small part compared to others, \$I_b <<...
1
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1
answer
434
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How can I prove that Vce saturation lies below .2V?
When I try to prove that Vce for saturation is below .2V and I take npn transistor I simply consider emitter to be at 0V and thus base emitter junction being forward biased base gets a voltage of (.7 ...
- 83
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What does this ɣ constant relate to in the carrier motion of BJT
What does the constant ɣ represent in the following carrier motion of an PNP transistor?
So I see three components for the base current.
1) According to the illustration I can see that some of the ...
- 1,505
1
vote
2
answers
188
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Transistor Amplifier Circuit (currents)
I have been studying transistor throughly this semester and I have always doubted this circuit schematic.
First of all is this schematic correct? What about current directions are they conventional? I ...
- 69
4
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2
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542
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Why is the common emitter input insensitive to base width modulation?
According to Robert F. Pierret (1996) in page 411 of the 2nd edition of the textbook Semiconductor Device Fundamentals, common emitter input of PNP BJTs is insensitive to base width modulation. Isn't ...
- 107
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3
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Does N-type or P-type semi-conductor show electrical effect?
I am reading the book Electrical Engineering 101. It's a book of basics for not-so-newbie.
It contains below description in Chapter 3:
A diode is made of two types of semiconductors pushed ...
- 1,192
2
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1
answer
2k
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If the depletion layer of a transistor collector/base junction is thick, why are majority carriers still collected?
In "Principles of transistor circuits, 8th edition" (top of p26) it is said that once holes have been injected in the base region by a forward biased base-emitter junction (which I understand) of a ...
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