16v ac high amp power supply

[Water skier 16]

Happy New year all.
Evening.
As the title says I’m after a high power (10- 20 amp) 16v ac power supply for a model train set power supply. Has anyone come across anything that may be suitable?
Thank you
James

 

[MattH]

16v will be a struggle I’d of thought.

15v or 18v no problem:

https://airlinktransformers.com/pro...toroidal-transformer-standard-range-cm0500215

 

[gaz1]

do you mean 16v dc transformer with a 10-20 amp power supply

the voltage keeps over the 12v mark but the amps allow a train set or many trains sets to run at the same time

https://www.ebay.co.uk/itm/DC-Power...=item4688ae9945:g:3IwAAOSwuUlb2Y4g:rk:21:pf:0

 

[RichardM]

If you have any ATX computer power supplies lying around and can solder. Dependent on chip, it is possible to alter the output voltages on the 12v rail, I have done one for a variable bench power supply.

DC out of this so no good to you.

 

[Water skier 16]

It does need to be ac, thanks for the pointers

 

[Robotstar5]

Sounds like a decent size layout if you need that much current?

 

[Water skier 16]

It is fairly large the board is 1.3m x 3.5m. In a couple of years it will be extended with an additional 1.8m x 4.8m board so I would like to future proof the control/ supplies

 

[voipio]

These people will make bespoke transformers:

www.cambridgetransformers.co.uk

 

[Rig Pig]

I wonder if you could fiddle with an Oxford stick set to get this out? The primary has several taps for different input voltages

 

[rikrobson]

10 amps sound like a lot for a model railway
As I understand model railway motor are only a few watts each
A typical dc power unit will have 12v dc and 16v ac for accessories. But this would be in the 1.to 2 amp range.

What exactly are you trying to power?

 

[Robotstar5]

10 amps sound like a lot for a model railway
As I understand model railway motor are only a few watts each
A typical dc power unit will have 12v dc and 16v ac for accessories. But this would be in the 1.to 2 amp range.

What exactly are you trying to power?

Modern DCC controlled layouts can have multiple locos in motion at the same time.

 

[Water skier 16]

There are speed controllers that take 1.5 amps each because of the brake simulation and there will be 5-6 of them and the point motors. The controllers take 16v ac and put out 0-12v dc

 

[daedalusminos]

16V is an unusual transformer voltage, can you make do with 15V AC?

 

[Robotstar5]

16V is an unusual transformer voltage, can you make do with 15V AC?

Trust railway modellers to be different they have been using 16-18VAC for while.

 

[daedalusminos]

Trust railway modellers to be different they have been using 16-18VAC for while.

18V is the next 'standard', OP could go for a 300VA torroidal expect to pay £50+

 

[gaz1]

10 amps sound like a lot for a model railway
As I understand model railway motor are only a few watts each
A typical dc power unit will have 12v dc and 16v ac for accessories. But this would be in the 1.to 2 amp range.

What exactly are you trying to power?

id have said the same

 

[Water skier 16]

It does need to be that big because of the supply requirements of the controllers for the finished layout.

 

[puffernutter]

If I remember correctly from my "electric mice" days (well before DCC, Hornby Zero 1 or the Airfix variant!!) I had Hammant and Morgan controllers that had 16v AC for points, 12dc (fixed) for lights and 12vdc variable for trains. Internally they were very simple, A transformer, bridge rectifier and a resistance mat for the controlled DC. So why 16v ac for accessories, well if you rectify 16vac without any smoothing you get around 12v dc. Simples!

My mice are now huge rats and steam powered (7.25"!)

Cheers

Peter

 

[Water skier 16]

I would like my mice to grow into rats eventually as I do like steam. I would love a 4 or 6 inch scale traction engine/ showman’s engine