Design power supply 5 to 200 V 10 A

Sorry max, but a 2kW switching supply is *not* a suitable project for a beginner, and in fact cannot be reasonably and safely built simply from a schematic drawing, without substantial additional info, knowledge and experience. Have you considered procuring a nice used one on eBay?

BTW in Italy we have 230V as line supply. Win is right, get a ready made thing, if you do not know even this.

A 2000VA (2000watt) PSU?

What techical requirements do you have.

Eg

AC input range selectable by switch

??Protections: Short circuit / Overload

Over voltage / Over temp.

??Fixed switching frequency at 25KHz

??Cooling by free air convection

??100% full load burn-in test

??Compact size, light weight

??Low cost, high reliability

??1 year warranty

AC input voltage range

AC inrush current

DC adjustment range

Overload protection

Over voltage protection

Setup, rise, hold up time

Withstand voltage

Working temperature

Safety standards

EMC standards

Connection

Packing

Cold start, 25A at 115VAC, 50A at 230VAC

??10% rated output voltage

115%~145% rated output voltage

I/P-O/P:1.5KVAC, I/P-FG:1.5KVAC, 1minute

-10~50OC (refer to output derating curve)

Design refer to UL1950

Design refer to FCC part 15 J

0.93kg ; 12pcs / 12.0kg / 0.92CUFT

If he does know that, he should still get a commercial supply.

Thanks for you answer!

In effect is not for a beginner this project,but i think i've some experience. What i nedd is an idea for doing a half controlled bridge for regulating input tension and not have to dissipate 1500w when i take out 10 A at 10 volt! The ripple isn't a problem (and also a perfect sability) because this supply is intended for supply some lamp during test on analogic mesure instruments. Another idea shuold be use a 3525 for a pre-regulation of tension in the ferrite transformer and not use a post dissipative regualtion...........boh!

hmm, A variac/Auto tranformer?

Sounds like a cascade of step downs with one serving as a tracking pre-regulator for the output step-down. This will keep the current and required duty cycles attainable but may not be the most efficient thing around.