4
11.1 Instantaneous and
Average Power (2)
•
The average power, P,
is the average of the instantaneous
power over one period.
1.
P is not
time dependent
.
2.
When
θ
v
=
θ
i
, it is a
purely
resistive
load case.
3.
When
θ
v
–
θ
i
=
±
90o, it is a
purely reactive
load case.
4.
P = 0 means that the circuit
absorbs
no average power
.