20
7.5
The Step-response
of a RL Circuit (1)
of a RL Circuit (1)
•The step
response of a circuit is its
behavior when the excitation is the step function, which
may be a voltage or a current
source.
• Initial current
i(0-) = i(0+) = Io
• Final inductor current
i(∞) = Vs/R
• Time constant t = L/R
