>  I'm trying to find a solution for a power supply. It will 
> supply power to
> an appliance, so it should be as inexpensive as possible. 
> It will also have
> to be as small as possible since the design department 
> says I have no more
> room to play with :)
>
>  The requirements are:
>
> Vout1: 100Vdc 3A continuous and 10A peak (<5sec) to drive 
> a DC motor
> (unregulated)
>
> Vout2: 12~15V 15mA continuous to drive some mosfets
>
> Vout3: 5V 15mA for a PIC
>
>
> Ideally, it will be for 100~240 Vac input voltage, 
> preferably but not
> mandatory with automatic voltage selection.
>
> A transformer is not viable, since there is no room for 
> it.


You MUST say what sort of voolume you have available.

Who says that there is no room for a transformer.

The LV supplies require about 300 mW of power - extremely 
small.

Is the HV supply acceptable as is?

Why not use an eg TO92 sized or surface mount voltage 
regulator?


        Russell



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