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I need a power supply design that would have a Nominal 12VDC 15 Watt output.
The input would be variable; 45Hz to 80Hz, 60VAC to 600VAC.
The primary input will be isolated from the output by a toroid transformer. The input winding can be manually varied between 1 and 12 turns dependent upon the input voltage.
The weight of the complete design must be less than .25kg. Toroid ID to be between 20 to 40 mm (approximate).
It is expected to be a combination of circuit design and transformer design. It must be able to pass CE mark.
All work will be property of my company.
Work Output (deliverables) will be in some form of a schematic capture package, PDF, source files will be sent at development stages to be discussed.
A working prototype to be developed for verification. That proto can be built as a process between the contractor and my company.