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What is the DC To DC step up convertor topology in this UPS

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azadfalah

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Hi friends,
does anyone know what is the DC To DC step up convertor topology in this UPS ?

There is no power transformer !
What do those ferrite rings do ? And why the diameter of their wires is so small ?

*UPS battery input is 196 volts





Thank You
 

Don't know which "ferrite rings" you mean but I see
these, which are not petite but relatively large toroidal
power inductors.

ImageX.png


Perhaps this inverter works "Class D style" and does
not boost raw positive supply at all, so no "housekeeping"
DC-DC. It could happen, no way to say whether or not
without a much better look at the guts (there's like 2
frames in which you can even get a look at these fat
toroids; who knows what the videio doesn't show?).
 
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