TDK LAMBDA VEGA 650W modular powersupply, fixed primary pwm, teardown

[oz2cpu]

I just released two videos about this type of powersupply

TDK LAMBDA VEGA 650W modular powersupply
https://youtu.be/2064hOTGZi8

TDK LAMBDA ALPHA 1000W modular powersupply
https://youtu.be/i03fjjAap44

Both designs use the same topology, and same style sec sides
the sec side modules are not interchangeable between those two models

The switchmode know-how dudes of this forum
might find a few things interesting in the videos,
specially the fixed pwm primary common to all sec modules
and the sec module end regulation is done very smart,