Confusion about circuit schematic notations

Click For Summary
SUMMARY

The discussion centers on the interpretation of circuit schematic notations, specifically the representation of terminals that can indicate either an open circuit with a voltage source Vi(t) or a closed circuit with a voltage/current source. Participants emphasize the importance of context in understanding these symbols, particularly the role of the ground symbol in establishing reference points for voltage measurements. The conversation highlights the necessity of Thevenin/Norton reduction techniques to analyze circuits accurately when the source is floating and not referenced to a common ground.

PREREQUISITES
  • Understanding of circuit schematic symbols, including voltage sources and ground symbols.
  • Familiarity with Thevenin and Norton equivalent circuits.
  • Knowledge of Kirchhoff's Voltage Law (KVL) and Kirchhoff's Current Law (KCL).
  • Basic principles of voltage measurement and reference points in electrical circuits.
NEXT STEPS
  • Research Thevenin and Norton equivalent circuits for circuit analysis.
  • Learn about voltage measurement techniques and the significance of reference points in circuits.
  • Explore circuit simulation tools like LTspice to visualize and analyze circuit behaviors.
  • Study the implications of floating voltage sources in circuit design and analysis.
USEFUL FOR

Electrical engineers, circuit designers, students studying electronics, and anyone involved in interpreting or designing circuit schematics will benefit from this discussion.

  • #31
jim hardy said:
"Grounding" conductor is green here and i think brown in EU.
In Australia and EU.
Green with a yellow stripe is Earth, (it was once green).
Brown is Active, (it was once red).
Light blue is Neutral, (it was once black).
The colours were changed to avoid the common red-green colour blind hazard that swapped Earth and Active.
https://en.wikipedia.org/wiki/Electrical_wiring#Colour_code
 
  • Like
Likes   Reactions: jim hardy

Similar threads

  • · Replies 10 ·
Replies
10
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 14 ·
Replies
14
Views
4K
  • · Replies 14 ·
Replies
14
Views
2K
  • · Replies 19 ·
Replies
19
Views
6K
Replies
9
Views
7K
  • · Replies 10 ·
Replies
10
Views
2K
  • · Replies 6 ·
Replies
6
Views
5K
  • · Replies 81 ·
3
Replies
81
Views
8K