The basic conversion process of AC to DC or MFDC is discussed in an article in this blog:
HOW IS AC CONVERTED TO DC WITH A FREQUENCY OF 600Hz?
CONVERSION IN CONTROL AND TRANSFORMER of MID FREQUENCY INVERTER
The components and their functions are discussed in the article referred to above. A similar product will be necessary for any high frequency conversion.
The actual design is beyond the scope of this blog.
Reference: RWMA Manual, Fourth Edition