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Converting input in rlc circuits

by VerdictGuilty
Tags: circuits, converting, input
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VerdictGuilty
#1
Dec18-12, 03:32 AM
P: 1
I was wondering how to convert E=70.7sinwt..<-- (just an example)
to something like 50∠0 degrees?
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NascentOxygen
#2
Dec19-12, 07:19 AM
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P: 5,121
Hi VerdictGuilty,


E=70.7sin(Ѡt + 10)
=70.7∠10

Too easy!
jrive
#3
Dec19-12, 07:24 AM
P: 39
You're converting it to phasor representation. You want to employ Euler's identity to convert the sinusoid to a complex number from which you can obtain the modulus(magnitude) and phase.

jrive
#4
Dec19-12, 11:38 AM
P: 39
Converting input in rlc circuits

@NascentOxygen,

Since the phase angle is based on the cosine function, are you missing a -90deg factor in your answer? should it be 70.7∠-80?
NascentOxygen
#5
Dec20-12, 08:20 PM
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Quote Quote by jrive View Post
@NascentOxygen,

Since the phase angle is based on the cosine function, are you missing a -90deg factor in your answer? should it be 70.7∠-80?
I referenced it to a sine wave.


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