58 Phasors in action

Ganago phasorsinaccon 6 1 102609

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Unformatted text preview: plex
numbers
have
 both
magnitude
and
phase
 •  A
phasor
is
a
shorthand
notaCon
for
the
 magnitude
and
phase
of
sinusoidal
voltage
or
 current
at
the
chosen
frequency
ω
 ©
2009
A.
Ganago
 Phasors
in
AcCon
 5
 Phasor
NotaCon
for
Sine
Waves
 •  We
keep
in
mind
the
frequency
ω
but
we
do
 not
include
it
in
the
phasor
notaCon
 •  Phasor
describes
the
whole
sinusoidal
signal,
 at
all
moments
of
Cme
 •  For
example,

 X = A∠φ is shorthand notation for : x(t ) = A ⋅ cos(ω t + φ ) ©
2009
A.
Ganago
 Phasors
in
AcCon
 6
 1
 10/26/09
 2
types
of
problems
with...
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