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Results tagged with transistors
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user 95890
A transistor is a semiconductor device that can amplify signals and switch power. The types that are used most are BJT (Bipolar Junction Transistor), UJT (Unijunction Transistor), and MOSFET (FET, for Field Effect Transistor).
3
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1
answer
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Relationship between base-emitter voltage, base current and collector current
I'm reading Sedra's Microelectronics book and I can't understand the following:
We can get a relationship between \$I_b\$ and \$V_{BE}\$ (DC):
$$I_B=\frac{V_{BB}}{R_B}-\frac{1}{R_B}V_{BE}$$
This t …
- 295
3
votes
3
answers
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Trouble analyzing transistor's circuit
simulate this circuit – Schematic created using CircuitLab
\$V_{cc}=20V\\V_{BE1}=V_{BE2}=0.5V\\V_{BE3}=0.6V\\\beta_1=\beta_2=100\\\beta_3=50\$
I need to find V in this circuit. I tried to use …
- 295
5
votes
2
answers
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Thevenin's theorem in transistor circuit
When analyzing this transistor circuit it was suggested that I simplify the left side by using Thevenin's theorem with the points A and B as follow. Before I jump in let me apologize the lenght of the …
- 295