This time they’re looking at bridge rectifiers and how they’re used in AC to DC converters. This is a simple concept which is worth taking the time to study for those unfamiliar with it.

Synchronous rectifier replacement for lossy high voltage bridge rectifier Self-powered Vcc in AC system with ultra-low quiescent current Integrated 190mOhm, 600V N-channel MOSFET (AOZ7270DI) ...

The new devices are industrial-qualified and fully characterized in thermal resistance for end-of-life conditions in the highly demanding power and thermal cycling typically found in motor-control ...

REFERENCES International Standard CEI/IEC 61000-3-12:2004 A. Sokolov “100 kw DC/DC converter Employs Resonant π Filter”. Power Electronic Technology, Jan. 2009, p. 18 21.