58 Phasors in action

Ganago phasorsinaccon 41 2009aganago phasorsinaccon

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Unformatted text preview: phase
shiK
depends
on
Im{ZTOTAL}
:

 •  If
Im{ZTOTAL}
<0,
the
circuit
is
capaciCve;
the
 current
leads

 •  If
Im{ZTOTAL}
>0,
the
circuit
is
inducCve;
the
 current
lags

 ©
2009
A.
Ganago
 Phasors
in
AcCon
 18
 0
 Voltage

 has
max

 at
t
=
0
 ©
2009
A.
Ganago
 Phasors
in
AcCon
 Time
 Current
 has
max

 at
t
=
+¼T
 17
 3
 10/26/09
 Phase
shiKs
(5)
 •  If
the
frequency
ω
is
varied,
Im{ZTOTAL}
changes
 the
sign
 •  At
ω
0,
the
capacitors’
impedances
 dominate...
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This note was uploaded on 12/06/2010 for the course EECS 314 taught by Professor Ganago during the Spring '07 term at University of Michigan.

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