Problem $8$: $(10$ points$)$ Draw the complete schematic $($no need for any design values$)$ of a suitable

converter whose input is either an ac source at $120$ V RMS$,60$ Hz$,$ single phase or a dc source of

$200$ V $($only one source will be connected at a given time$),$ and whose output needs to be regulated

at $400$ V DC$.$ When the ac source is connected as input, the current drawn from the ac source

should be sinusoidal and in phase with the ac voltage.