Calcolatore Adattamento di Impedenza — Formula

RL Time Constant

tau = L / R

Current in an RL circuit rises to 63.2% of final value in one tau. After 5 tau, current is at ~99.3% of steady state.

Esempio Risolto

100 mH inductor with 100 ohm resistance.

  1. tau = 0.1 / 100 = 0.001 s = 1 ms
  2. 5 tau = 5 ms to reach steady state