Looking for 30 volt, 10 amp SMPS

[MRMILSTAR]

I recently completed a 14-stage CW voltage multiplier. It works well but its ZVS driver/dual-flyback HV power supply requires a DC power supply capable of 30 volts at 10 amps. I am currently using an adjustable SMPS which works well but I would like to have a dedicated fixed SMPS that puts out 30 volts at 10 amps.

Mads posted a video showing how cheap used server SMPSs can be connected in series with minor modifications. I would like to do something like that. The problem is that these supplies all seem to output 12 volts so 2 in series would only yield 24 volts. Any ideas on how to get 30 volts using similar equipment?

[Da_Stier]

Hi,

I like to use old cellular power supplies. The first GSM stuff ran on 28V instead of the now common -48V.
Something like this should fit you:
https://www.ebay.de/itm/1PC-Power-Supply-28V-43-1200W-Linear-Amplifier-Army-Surplus/184567217365?hash=item2af9103cd5:g:-ucAAOSwcHRdCUkX
I bought one from this seller years ago and I'm very pleased.
But you can get this type from sellers all over the world to save on shipping.
Try searching for "ericsson psu ac"


Greetings,
Michael

[shrad]

Have a look at Vicor Flatpac power supplies, there are some 36V or 28V ones on ebay and sometimes they can be cheap

[Twospoons]

Aliexpress is full of 36V supplies. Most of them will have a voltage trimmer somewhere, if you absolutely have to have 30V.
https://www.aliexpress.com/wholesale?trafficChannel=main&d=y&CatId=0&SearchText=36vdc&ltype=wholesale&SortType=default&page=1&pvid=186-353326%3B186-202920806%2C439-3959%3B439-3960%3B439-3961&isrefine=y

[MRMILSTAR]

I actually found some 30 volt SMPS at 10 amps or more on E-Bay. I have no idea what 30 volts would be used for although by luck it fits my needs.