hello
I have another assignment for my course. I have to use a circuit in multisim to create a square wave
go to simulate > analysis > fourier and show the harmonics and values
I cant get this to export to my version of excel at the moment but it puts all the values into a spreadsheet.
from there I have to create sine waves of the fundamental and odd harmonics to make up a square wave.
im not sure how to do this.
I have this formula: Vsin(2(pi)ft) + v/3sin(6(pi)ft) + v/5sin(10(pi)ft) and so on for about ten harmonics.
im not sure what formula to use. my lecturer was talking about creating each wave form, so the fundamental first, create a bunch of values that will show a sine wave. for this he used "time"
the frequency of the fundamental is 1kHz. so 1millisecond is the periodic time. so break this 1millisecond into 50 parts(arbitrary number) then use the first formula : Vsin(2(pi)ft) with "t" being each increment. this should create a sine wave. I had a problem with my wave. it looked more wibbly wobbly then supposed to.
it didn't look sine wave shape. I used Vmag and Time in milliseconds to create the graph.
not sure what I did wrong here.
any help would be great
thanks
simon bradley
I have another assignment for my course. I have to use a circuit in multisim to create a square wave
go to simulate > analysis > fourier and show the harmonics and values
I cant get this to export to my version of excel at the moment but it puts all the values into a spreadsheet.
from there I have to create sine waves of the fundamental and odd harmonics to make up a square wave.
im not sure how to do this.
I have this formula: Vsin(2(pi)ft) + v/3sin(6(pi)ft) + v/5sin(10(pi)ft) and so on for about ten harmonics.
im not sure what formula to use. my lecturer was talking about creating each wave form, so the fundamental first, create a bunch of values that will show a sine wave. for this he used "time"
the frequency of the fundamental is 1kHz. so 1millisecond is the periodic time. so break this 1millisecond into 50 parts(arbitrary number) then use the first formula : Vsin(2(pi)ft) with "t" being each increment. this should create a sine wave. I had a problem with my wave. it looked more wibbly wobbly then supposed to.
it didn't look sine wave shape. I used Vmag and Time in milliseconds to create the graph.
not sure what I did wrong here.
any help would be great
thanks
simon bradley