30
LabSpion user guide
Example 1
Shows a standard
60W tungsten bulb
having a perfect
power factor of 1.0
with a current
shape that is identical to the voltage shape.
Example 2
Shows a LED bulb
that has passive
capacitive power
supply which
results in high
phase shift between current and voltage and thus resulting
in a very low power factor of 0.19.
Example 3
Shows a LED bulb
having a medium
quality switch-mode
driver with a high
capacity peak load
and thus a medium quality power factor of 0.62.
Example 4
Shows a LED bulb
having a switch-
mode driver with
very bad filtering
resulting in very
high noise level of the current. This level of noise would
probably not be able to pass EMC noise level requirements.
