Solving Thévenin Equivalent Circuits: Confused by Different Methods

AI Thread Summary
In solving Thévenin equivalent circuits, current sources are typically replaced with open circuits and voltage sources with short circuits. However, some instructional videos may present alternative methods, such as treating the voltage source as a load and open-circuiting it, which can lead to confusion. The variety of techniques for determining Vth can overwhelm learners, especially in a subject like circuits that many engineering students find challenging. Understanding the context of each method is crucial for accurate application. Clarity in these concepts is essential for mastering Thévenin's theorem.
gfd43tg
Gold Member
Messages
947
Reaction score
48
Hello,

For thévenin equivalent circuits, I thought current sources are replaced with open circuits and voltage sources are replaced with short circuits.

In this video, the guy replaces both with open circuits, so I am not understanding how that works.


Because of all the different methods I am seeing for solving for Vth, I cannot figure out what to do because I am being bombarded with too many techniques.
 
Last edited by a moderator:
Engineering news on Phys.org
The video author is treating the voltage source as the load of the circuit so it is not strictly part of the circuit under consideration. Therefore he treats it like a load and open-circuits it.

I know this stuff is confusing. Small wonder Circuits is usually the least favorite class of Engineering majors!
 
Thread 'Weird near-field phenomenon I get in my EM simulation'
I recently made a basic simulation of wire antennas and I am not sure if the near field in my simulation is modeled correctly. One of the things that worry me is the fact that sometimes I see in my simulation "movements" in the near field that seems to be faster than the speed of wave propagation I defined (the speed of light in the simulation). Specifically I see "nodes" of low amplitude in the E field that are quickly "emitted" from the antenna and then slow down as they approach the far...
Hello dear reader, a brief introduction: Some 4 years ago someone started developing health related issues, apparently due to exposure to RF & ELF related frequencies and/or fields (Magnetic). This is currently becoming known as EHS. (Electromagnetic hypersensitivity is a claimed sensitivity to electromagnetic fields, to which adverse symptoms are attributed.) She experiences a deep burning sensation throughout her entire body, leaving her in pain and exhausted after a pulse has occurred...
Back
Top