- #1

I need help deriving the Transfer Function of this circuit from first principles.

http://i66.tinypic.com/24v3z9s.jpg

- Thread starter optically challenged
- Start date

- #1

I need help deriving the Transfer Function of this circuit from first principles.

http://i66.tinypic.com/24v3z9s.jpg

- #2

anorlunda

Staff Emeritus

- 8,769

- 5,646

Do you consider Ohm's Law first principle ?

- #3

YesDo you consider Ohm's Law first principle ?

- #4

anorlunda

Staff Emeritus

- 8,769

- 5,646

If this is homework, it should be posted in the homework forum and use the template.

- #5

Thanks Anorlunda, I will post it there.

- #6

analogdesign

Science Advisor

- 1,140

- 354

1. Replace all devices with a general impedance (call it, for example, Z, so R1 = Z1, R2 = Z2, L = Z3, C = Z4.)

2. Solve the now trivial three-node voltage divider problem using KCL.

3. Replace all the Zs with their actual impedences (e.g. Z1 = R1, Z2 = R2, Z3 = sL, Z4 = 1/sC)

4. Simplify the expression and you're done!

- #7

anorlunda

Staff Emeritus

- 8,769

- 5,646

If you are only interested in this problem, use @analogdesign 's advice in post #6. But basic circuits is something you'll surely need in your career. It is worth your time to learn it. A very effective and fast way to learn is using Khan Academy. It takes less than 5 hours there to learn a whole basic circuits course.

https://www.khanacademy.org/science/physics/circuits-topic#circuits-resistance

- #8

berkeman

Mentor

- 58,164

- 8,216

Schoolwork thread in the EE forum is closed.

- Replies
- 2

- Views
- 29K

- Last Post

- Replies
- 5

- Views
- 12K

- Last Post

- Replies
- 30

- Views
- 2K

- Last Post

- Replies
- 1

- Views
- 2K

- Replies
- 17

- Views
- 6K

- Replies
- 3

- Views
- 4K

- Replies
- 2

- Views
- 8K

- Replies
- 20

- Views
- 638

- Last Post

- Replies
- 1

- Views
- 2K

- Replies
- 6

- Views
- 9K