Electronics: Difference between revisions
Jump to navigation
Jump to search
(New page: ==Golden Rules== When analyzing operational amplifiers, there are a few rules that need to be taken into consideration in order to solve circuits using KVL or KCL. # Because the output vol...) |
(No difference)
|
Revision as of 10:39, 11 January 2010
Golden Rules
When analyzing operational amplifiers, there are a few rules that need to be taken into consideration in order to solve circuits using KVL or KCL.
- Because the output voltage does not dpened on the output current, the output impedance equals zero.
- The input impedance .
- When there is a negative feedback, both inputs have the same voltage. In other words, is equal to .
- When solving circuits using the nodes method, write node equations at and , but not at .