It’s something I’ve been proud to recognise and when electroBOOM did his piece on it, I was glowing with pride.
But the basic FBR there creates pulsating DC, for steady DC, you need capacitors, to trim the peak voltage and fill in the dips.
Though, if you have three phase, with each phase on a FBR, and combine the DC output, it’s pretty steady on the output because of how three phase works (no capacitors needed), and I think that’s pretty cool…
Seriously though, three phase AC is really interesting in how it functions.