New Reply

Mathematical proof for positive feedback

 
Share Thread Thread Tools
Jan17-13, 12:25 AM   #1
 

Mathematical proof for positive feedback

Is there a mathematical proof that the positive feedback makes the op-amp saturated?

http://i.imgur.com/71PNh.png
 
PhysOrg.com
PhysOrg		 engineering news on PhysOrg.com

>> Researchers use light projector and single-pixel detectors to create 3-D images
>> GPS solution provides 3-minute tsunami alerts
>> Single-pixel power: Scientists make 3-D images without a camera
Jan17-13, 01:21 AM   #2
 
Do you understand why it saturates (non-mathematical seat of the pants explanation)?
 
Jan17-13, 08:42 AM   #3
 
Let's clarify this by specifying positive DC feedback drives the opamp into saturation. Positive AC feedback makes it oscillate.
 
Jan19-13, 03:11 AM   #4
 

Mathematical proof for positive feedback

Quote by the_emi_guy View Post
Do you understand why it saturates (non-mathematical seat of the pants explanation)?
Yes of course
 
New Reply
Thread Tools


Similar Threads for: Mathematical proof for positive feedback
Thread Forum Replies
Positive Feedback Op-Amp? Electrical Engineering 15
The positive feedback factor of CO2 Earth 36
Operational Amplifier with positive feedback problems Engineering, Comp Sci, & Technology Homework 5