# Solve for VL

Discussion in 'Homework Help' started by davidand, Jun 14, 2005.

1. ### davidand Thread Starter Active Member

Jun 2, 2005
43
0
In the op amp circuit it asks for VL I use the V Ref from the zener am I missing something else to solve for VL?

2. ### davidand Thread Starter Active Member

Jun 2, 2005
43
0

I'll try and redo the schenatics tomorrow,

I copied off blackboard and one was attached to an e-mail.

I was trying to determine to solve for V L when the zener was referencing 24V if there was a formula to solve for VL

3. ### davidand Thread Starter Active Member

Jun 2, 2005
43
0

I'm tring to find quiescent drain current and voltage.

4. ### davidand Thread Starter Active Member

Jun 2, 2005
43
0
Yes but the VGG polarity is backwards and the VDD = 20v

5. ### davidand Thread Starter Active Member

Jun 2, 2005
43
0
R2 = 7k
What I'm looking for is if I'm given the drain current there are a lot of practice exercies where they give me the Q drain current and to find theQ drain voltage
in this example they give me 1mA drain current.

6. ### davidand Thread Starter Active Member

Jun 2, 2005
43
0
I have been using VD = VDD -IDDS RD

20V-(1mA)(7k) = 13

7. ### davidand Thread Starter Active Member

Jun 2, 2005
43
0

No I'm getting these problems from Army radar repair tech's. I'm trying to prepare myself for a future training course I may have to take.

I'm in the process of trying to learn the basic of electronics, for the course they use the Navy books as a reference.

So they keep changing things in the circuits so I can practice the basics.
thanks joe