Power Supply for EYE MAGIC EMS 4000

[Lasermad]

Anybody have a spare power supply ?
Now sure whats required , and wether its a power supply for each galvo/amp or one supply for both

but if you have supply available and prepared to part with it please let me know

paul

[Lasermad]

OK managed to source a new power supply but its $150 ! + shipping of between $30 to $120 depending on service + import charges and import management fee ...Ooopsss

Heres what the manual says i required .... which i dont fully understand so if anyone can point me to a relevent power supply in UK it would be appreciated

" +/-0v to +/-30V DCvia 4 pin labled powe, Red is positie , green is ground, black is negative. Typically a 2 x 18v , 100w transformer , recified and filtered with 6800uf/35V capacitors in each rail is sufficient for a pair of scanner. Stabalized and switching power supplys can also be used.if you use switching PS , make sure it can deliver at least 50W in each rail to ensure reliable operation. "

Any help appreciated

Paul

PS ..power supplies for dummies spoon feeding links appreciated

[smogthemog]

I don't understand either Paul.

Can you type exactly what it says in the manual re the voltage.

Will also need to know the approximate current draw from the scanners?

[Tormod]

I would buy 2 24v power supplies from HK.

http://cgi.ebay.com/Universal-24V-2A...item27b56969d6

Like this one 48watts.

I can't wouch for this seller as it's just an example but all my scanners, lasers and other electronics projects are powered from cheap hong kong psu's like this one.

[Lasermad]

manual attached ..this is all info i have.

[kitatit]

Hi Lasermad,
I've got the same scanners to but haven't got to the stage of firing them up yet. Have a chat to dsli_jon and also Dave. They both have used them extensively.

Also I think I remember Dave saying you need to add a diode somewhere if you use switch mode supplies with them.

Let me know how you go.

Good luck
Kit

[Tormod]

A -24v, 0, +24v 100watt swich mode psu, or 2x 24v 50watt with isolated secondaries will far exceed the requirements described in the manual.

Adding a diode will only drop the voltage with 0.6volts and cripple the psu's ability to compensate for backsourges (that will never happen with the ema-1900 or ema-1200 drivers usually found with the ems-4000's anyway)

[Lasermad]

thanks tormod , the ebay link is great price i shll order some o those up for diferent projects

for this EMS 4000 issue ...does this look as though it might be a solution , its local tome and varibale voltage
http://www.tait-components.com/Power...0w-101082.html

any input appreciated

paul

[dave]

Just use 2 24v switchmode supplies in series.

[dave]

Adding a diode will only drop the voltage with 0.6volts and cripple the psu's ability to compensate for backsourges (that will never happen with the ema-1900 or ema-1200 drivers usually found with the ems-4000's anyway)

The diode is needed to stop the positive regulator on the ems board locking up if the negative rail rises first - As what can happen if 2 separate switchmodes are used.. Easy fix tho.