LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
First of all, I want to mention that I side with Rick on this topic, so he's not alone.
While it may be factual when referring to a single frequency, let's see someone create an inverted signal using time shift for a complex signal, like audio.
I have made transistor-based phase-splitters for bridging audio amps, and center-tapped transformers are used to create phase inversion in push-pull circuitry.
It can't be done using time-shifting, because each frequency requires a different amount of time delay for a 180-degree signal shift. One set time doesn't do it.
Second, although Jon is correct on this point, I say it's irrelevant.The counterpoint, which has been made many times over, is that for a single frequency system, 0? and 180? doesn't simply 'look like' 0? and its inversion; the two are _indistinguishable_ and completely _equivalent_.
While it may be factual when referring to a single frequency, let's see someone create an inverted signal using time shift for a complex signal, like audio.
I have made transistor-based phase-splitters for bridging audio amps, and center-tapped transformers are used to create phase inversion in push-pull circuitry.
It can't be done using time-shifting, because each frequency requires a different amount of time delay for a 180-degree signal shift. One set time doesn't do it.
True, but "bi-filar" winding is used when the halves must match. Instead of winding half the secondary, creating a tap, and winding the other half, they wind both halves using two conductors, and then connect them in series.A real transformer ... will produce an imperfect sine wave . . . you also need to look at possible different flux coupling to the different halves of the transformer...making one half of the common center tapped secondary not necessarily a simple inversion of the other half.