Ideal vs Real Sources

Monday, July 30, 2018

12:28 PM

• Ideal voltage and current sources can generate/dissipate infinite power
• Real voltage and current sources have a limit to their power capabilities

 

Ideal voltage sources have no internal resistance (series)

Real voltage sources have a very low (non-zero) internal resistance

 

Ideal current sources have infinite internal resistance (parallel)

Real current sources have a very-high but non-infinite internal resistance