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Integration problem in Quartus II

Altera_Forum
Honored Contributor II
‎10-05-2012 04:40 AM
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I am trying to integrate a cosine wave to get sine wave.How can I do this??

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Altera_Forum
Honored Contributor II
‎10-05-2012 08:02 AM
493 Views

You can do an integrator by adding the current signal value to the previous one (stored in a register) and dividing the result by a constant value. 

But why do you want to do it this way? It isn't the best way of generating a sine wave. Any error in the incoming signal, or any rounding error in the integration process, can accumulate over time and you risk having a drift on you output signal.
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Altera_Forum
Honored Contributor II
‎10-05-2012 11:59 AM
493 Views

Thank you for your help.Actually i am simulating a RL ac circuit to obtain the current but i get current shifted towards negative.So, how can i integrate the dynamic equation to obtain proper current waveform?

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Altera_Forum
Honored Contributor II
‎10-08-2012 11:27 AM
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Sorry I need a bit more context about your system, what you are trying to measure and what you want to obtain.

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