- 93 Views
- Uploaded on

Download Presentation
## PowerPoint Slideshow about ' Lecture 5' - jenski

**An Image/Link below is provided (as is) to download presentation**

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript

Source Transformation

Show that iS=vS/R for any RL

Redundant Resistor (1)

Prove that the left circuit and the right circuit are

equivalent for any load resistor.

Redundant Resistor (2)

Prove that the left circuit and the right circuit are equivalent for any load resistor.

Thevenin Equivalent Circuit

VTh

- If RL=∞, then Vab=VTH
- If RL=0, the short circuit current from a to b (i.e. iab) should equal to isc=VTh/RTH.
- So RTH=VTh/isc

Determine vab

Show that VTH=vab

Determine iSCand RTH

Example 4.10

Determine the Thevenin Equivalent Voltage

Methods of Finding RTH

- RTH=VTH/iSC
- If the network contains only independent soruces:
- Deactivate a voltage source by replacing it with a short
- Deactivate a current source by replacing it with an open

- If the network contains dependent sources
- Apply a test source

RTH

RTH

Norton Equivalent Circuit

- A Norton Equivalent circuit consists of
- Short-Circuit Current
- Norton Equivalent Resistance, which is equal to Thevenin Equivalent Resistance

Extra Credit Assignment

Derive 4.1-4.3

Download Presentation

Connecting to Server..