Re: XTB-II 2-Phase Version

["Jeff Volp" <JeffVolp@xxxxxxx>]

Please see my comments added below:

"Jack Edin" <nospam@xxxxxxxxxxxxxxxxxx> wrote in message
news:b_qdnWWVHvYINUbZnZ2dnUVZ_tKdnZ2d@xxxxxxxxxxxxxx
> Jeff Volp wrote:
> > Hello All,
> >
> > Now that people see what the XTB can do, I am considering a XTB-II, to
drive
> > both phases directly.  It would be packaged in a larger module with a
> > terminal strip to accept any type of 240V grounded input cable.
>
> Do you have a picture of the case you intent to use?

Figure about 3" by 5" by 2" high.  Probably a Polycase - something like the
DC34F or 44F.  The exact size would depend on how much the printed circuit
board grows.  The height will be determined by the transformer.

> What about a Power-Brick type case? The kind a powersupply might come
> in... With a standard power cord input. Then one could use a cord made
> for 220v, either here in over there...  ;-)

I'm not familiar with the Power-Brick case.

> Plus the input power connector isn't that deep, hopefully easy to build
> around, etc. And the case in MY mind's eye already accommodates this by
> default.
>
> > With more
> > room available, a microcontroller could be added to gate received and
> > transmitted signals, and perhaps generate and decode the X10 signal
> > directly.
>
> Where would we plug our new RoZetta?

A single AC jack on the top would accept whatever you wanted to transmit.
With more room available, it could also provde over 100 watts.

If it does include a microcontroller, I'll work with Dave to provide a
suitable interface.

> Jeff, like these XTB products of yours, I expect the RoZetta will become
> a must-have for all HA installations!
>
> A way to get those signals into BOTH or ALL phases will be a God-send.
>
> Thinking and planning ahead?!!
>
> > The same approach could be used for a XTB-III three-phase unit
> > with gated drive to each phase at their zero crossings.  A similarly
> > packaged 240V single-phase European version is also a possibility.
>
> I wanna see the package!
>
> > I still have doubts about the marketability of units like this, and
would
> > like to get some feedback as to whether a project like this is worth the
> > investment.
>
> I'll need at least one.
>
> I'll happily Beta test the Kit for you...!

That is months away, but thanks for the offer.

> Any idea what the target cost will be for this, both as a full kit and
> assembled (waiver on file)...?

Since this is apt to be a low quantity item, the PC board will be pretty
expensive.  Figure about $60 for components.  Assembly time will be a bit
more than the XTB.

> ;-)
>
> > Thanks to all who have accepted the current version of the XTB.
> >
> > Jeff
>
> Let me know if I can lend a hand.
>
> Sincerely,
>
> Jack
> :)