[sdiy] Polyphase transformers

[Graham Atkins]

Sounds like a description of an industrial supply transformer. What  
use is that
in audio gear ?

Graham

On 21 Nov 2010, at 11:14, cheater cheater wrote:

> Hi,
> I have been reading up on directional couplers lately and saw mention
> of polyphase transformers. Supposedly they can output copies the
> signal that is input, rotated in pi/4 steps. Sounds like a fairly fun
> way to do a phaser. Anyone ever use one of those? Are there any
> circuits that use this specifically?
>
> Quote from wikipedia:
> For three-phase supplies, a bank of three individual single-phase
> transformers can be used, or all three phases can be incorporated as a
> single three-phase transformer. In this case, the magnetic circuits
> are connected together, the core thus containing a three-phase flow of
> flux.[49] A number of winding configurations are possible, giving rise
> to different attributes and phase shifts.[50] One particular polyphase
> configuration is the zigzag transformer, used for grounding and in the
> suppression of harmonic currents.[51]
>
> Cheers,
> D.
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy