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Simple transistor circuit question

  • Engineering
  • Thread starter Mugged
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  • #1
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http://img118.imageshack.us/img118/6515/circuitf.jpg [Broken]
Theres the circuit i have. Vdd = 10 V, Vtn = 2 V, Kn = .22 mA/V^2, Rg1 = 1.01 Mohm, Rg2 = 1.06 Mohm, Rd = 6kOhm, Rs = 5kOhm.

Im trying to figure out how to compute the drain current Id. As well as the drain voltage Vd and the source voltage Vs, but Id is priority.

Can anyone help?

[EDIT] I have figured out the gate voltage across the transistor to be 5.12077 V, therefore putting the transistor in saturation mode.
 
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Answers and Replies

  • #2
berkeman
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http://img118.imageshack.us/img118/6515/circuitf.jpg [Broken]
Theres the circuit i have. Vdd = 10 V, Vtn = 2 V, Kn = .22 mA/V^2, Rg1 = 1.01 Mohm, Rg2 = 1.06 Mohm, Rd = 6kOhm, Rs = 5kOhm.

Im trying to figure out how to compute the drain current Id. As well as the drain voltage Vd and the source voltage Vs, but Id is priority.

Can anyone help?

[EDIT] I have figured out the gate voltage across the transistor to be 5.12077 V, therefore putting the transistor in saturation mode.
Does this link help?

http://www-inst.eecs.berkeley.edu/~ee105/fa98/lectures_fall_98/091698_lecture10.pdf

You will have two simultaneous equations, I believe. The Vgs depends on the Id, which depends on Vgs.
 
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