How to get 90 degree phase shift
in [Matlab]
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From: CNB Bhende on 12 Jul 2010 03:37 Hello All I just want to know how to get 90 degree phase shift from measured sine wave 50 Hz signal in the simulink. Means Sin wave signal ---> 90 degree phase shift --> cosine wave signal I have used derivative block, it it ok or can you suggest some more methods.
From: Paul on 12 Jul 2010 03:47 "CNB Bhende" <cnbhende(a)rediffmail.com> wrote in message <i1egn1$ept$1(a)fred.mathworks.com>... > Hello All > I just want to know how to get 90 degree phase shift from measured sine wave 50 Hz signal in the simulink. > > Means > Sin wave signal ---> 90 degree phase shift --> cosine wave signal > > I have used derivative block, it it ok or can you suggest some more methods. Try to use Transport Delay. If you have a fix frequency (50Hz) it should work ok.
From: CNB Bhende on 12 Jul 2010 03:54 Dear Paul Thanks a lot for ur input. However, if I will use transport delay, buffer will delay the process. I don't want to use buffer. Thanks CNB "Paul " <paul_tutzu(a)yahoo.com> wrote in message <i1eh9p$mhv$1(a)fred.mathworks.com>... > "CNB Bhende" <cnbhende(a)rediffmail.com> wrote in message <i1egn1$ept$1(a)fred.mathworks.com>... > > Hello All > > I just want to know how to get 90 degree phase shift from measured sine wave 50 Hz signal in the simulink. > > > > Means > > Sin wave signal ---> 90 degree phase shift --> cosine wave signal > > > > I have used derivative block, it it ok or can you suggest some more methods. > > Try to use Transport Delay. If you have a fix frequency (50Hz) it should work ok.
From: Paul on 12 Jul 2010 07:34 "CNB Bhende" <cnbhende(a)rediffmail.com> wrote in message <i1ehms$m9e$1(a)fred.mathworks.com>... > Dear Paul > Thanks a lot for ur input. However, if I will use transport delay, buffer will delay the process. I don't want to use buffer. > > Thanks > CNB > > "Paul " <paul_tutzu(a)yahoo.com> wrote in message <i1eh9p$mhv$1(a)fred.mathworks.com>... > > "CNB Bhende" <cnbhende(a)rediffmail.com> wrote in message <i1egn1$ept$1(a)fred.mathworks.com>... > > > Hello All > > > I just want to know how to get 90 degree phase shift from measured sine wave 50 Hz signal in the simulink. > > > > > > Means > > > Sin wave signal ---> 90 degree phase shift --> cosine wave signal > > > > > > I have used derivative block, it it ok or can you suggest some more methods. > > > > Try to use Transport Delay. If you have a fix frequency (50Hz) it should work ok. Another solution: use trigonometric function. Use first Asin to get the angle followed by Cos. Paul
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