How to regulate voltage?

Question

Electronics

The task is to develop an adjustable power supply unit with the following parameters: input voltage - 12V. Output voltage - 3-20V. Maximum power - 200 watts. The question is in the selection of the component base. Help if you know

Answer 1

IMHO ready-made Chinese will come out better, faster and cheaper.

Answer 2

Well, what actually confuses you, a lot depends on the price tag, efficiency, manufacturability, and what load it will be ...
There are quite powerful keys, less powerful ones can be combined to win the price tag and size.
For a particularly demanding load and an even greater reduction in mass-dimensional characteristics, you can generally cut a multi-channel power supply ...
Or you can hastily shovel it from purchased, Chinese ones, but you need to choose idle-tolerant models.