AC Fundamentals

$$ v(t) = V_m sin(2πf_0 t) $$

$$ i(t) = I_m sin(2πf_0 t) $$

$$ I_{rms} = 0.707 I_m = I_m/√2 $$
$$ I_{av}= 0.637 I_m $$
$$ V_{av}= 0.637 V_m $$

Form Factor: $ K_f = I_{rms}/I_{av} $

$ K_f = 1.11$ for sinusoidal ac quantities


Crest Factor: $ K_p = I_m / I_{rms} $

$ K_p = 1.414$ for sinusoidal ac quantities