Generating an accurate 3-phase sine wave!

[Mehdi1357]

Hi to all
I want to generate an accurate 3-phase sine wave with 16Khz & 15V amplitude.
please give me an idea to generate it.

thanks you for your viewpoints.

 

[FvM]

Accuracy is relative, would be better to have a specification (frequency, amplitude, phase, distortion). You can generate it analog or digitally. For digital generation, single chip DDS could be used.

An analog generator could be made from two integrators ("state variable filter/oscillator") and an amplitude stabilizer, directly producing 90° phase shifted quadrature components. Three-phase signal can be obtained from linear combination of quadrature components, or by phase shifter.

P.S.: Please delete your manifold cross-postings

 

[Eugen_E]

DDS is suited for this application. Since the frequency is quite low, you can use a 3 channel software DDS implemented with a microcontroller. To get pure signals u can use 3 LPF at each output. The phase difference would still be 120deg.

 

[Mehdi1357]

I appreciate you for your viewpoints.
Yes,DDS is a suitable method.
I want to use AD9834 in my project.
thank you.