Model Railway Forum banner
1 - 4 of 4 Posts

·
Registered
Joined
·
2,342 Posts
G'day
One thing to remember , The Control/Power station may regulate the voltage from your Power supply (or transformer in older terminology) But it is better to have a power supply that supplies very close to the required track voltage.
the reason for this is that any voltage regulation (or lowering from 16v down to 12v) uses energy , which is dissipated as heat . Consequentially that will lower the amount of current that you can utilize on your track.
Regards Zmil
 

·
Registered
Joined
·
2,342 Posts
QUOTE (SPROGman @ 16 Jun 2008, 20:48) <{POST_SNAPBACK}>You are correct about minimising power dissipation in the booster being a good thing, but using a lower input voltage will not limit the current available to the track.

Andrew Crosland

What I should have said is:
The greater the input voltage , the more regulation required and the less current available to the track
The closer the input voltage is to the track voltage - the maximum current is available to the track
I hope thats a bit clearer
Regards Zmil
 

·
Registered
Joined
·
2,342 Posts
Hi Andrew
Yes ,I think 99% of the time it wouldn't make any difference.
Most systems have overcurrent protection of some sort
Lenz use thermal overload detection
This is from 1 of there manuals

1. The fast acting current limiting circuit designed to very quickly
shut down the LV101 track output if a short is detected. This
circuit activates at over 5 Amps.
2. Thermal overload protection. The LV101 has a long term
thermal overload circuit designed to shut down if its temperature
exceeds its rated capacity or value.
How does this translate to the output power you can expect?
For short term loads such as locomotive start up or slow speed
operation the LV101 can deliver over 5 amps of DCC track power.
For long term loads, the LV101 can continuously deliver between
4 and 5 Amps at the DCC-voltage you set as long as the
difference between input and output voltage is low enough to
prevent the LV101 from prematurely overheating. Otherwise the
thermal overload protection will limit the power output and shut
down the LV101.
That means you can achieve significantly more track current for
running trains with a power supply that matches best to the
LV101s potential.

I hope that clarifies
Regards
Zmil
 
1 - 4 of 4 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top