Jeff,
Thanks for the input. I don't know if I'd ever show my modules, but I don't want to do anything to prevent me. Likewise, I do want to do anything that precludes running either DC or DCC.
I don't really have an issue with the total current, but 300mA for a module doesn't allow for much, maybe a lighted crossing and control circuitry.
What I was thinking of is connecting the an analog buffer (about 3-5A) to the 12V line and driving the high power modules and running DC-DC converters as needed off the buffer. It allows me to minimize the number of under module cords and to piggyback off the ZBT 12V for power shutdown. BTW: is there a published circuit for power shutdown?
This may be overkill, but I can only imagine a rat's nest of wall warts and control circuitry under the module otherwise.
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--- In Z-Bend_Track@..., "Jeff" <sjbazman49@...> wrote:
The Act is wired with the same #18 wire (or should be !!!) so should be able to supply several Amps. However, as a courtesy or guide to assure multiple modules survive.
Since the BAZ BoyZ and ZoCal groups set up large modules and use many Tortoise and other Acc devices, we supply 5 Amps or more on the Acc bus so one just has to ask if its ok to suck up a few ;)
You could spend $5-10 and buy a well regulated, power efficient and light weight swirching supply (wall-wart or line cord) and self power your own 12V (but don't connect to the ZBT wiring). This means of course that you need a power cord. You could use Diode isolation so you could use either but miswired polarities could cause issues with other's modules.
As for that HO power Viessman, you could easily order a 16v wall-wart for <$15 from many places. Not easy to step up 12VDC.
Jeff M
SF Bay Area Z
-----Original Message-----
From: "mark2playz" <mark.markham@...>
Sender: Z-Bend_Track@...
Date: Tue, 24 Jul 2012 00:42:18
To: <Z-Bend_Track@...>
Reply-To: Z-Bend_Track@...
Subject: [Z-Bend_Track] Module scenery power
Hi,
I'm working on a new layout using the Z-Bend Track spec. I'm to the point of working on the electrical design. I find myself unsure about the 12VDC scenery power.
Spec allows 300mA per module. If I need more than that I need a "power booster" (as also specified for the 9th module). What is the power booster?
If one needs more than 12V (such as for the 16V Viessmann 4551 slow motion unit) do you use a DC-DC converter or just wall wart?
Thanks,
Mark
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