Electronics > Power/Renewable Energy/EV's

The latest fad in SMPS's....Planar transformers?

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jonpaul:
most modern designed SMPS are soft not hard switching

Teslaco, instead of litz try foil, have used in radar HV pulse and high current magnetics

Jon

Faringdon:
Yes, i'm unsucessfully seeking articles depicting a hard switched SMPS of 100W+ that would benefit from planar txformer design..not having any luck.

ogden:

--- Quote from: T3sl4co1l on November 07, 2022, 04:07:09 pm ---Interconnection from inverter modules (IGBTs) was dick-sized litz cable from NEWT.  (Yes, well, it just happens to be the nearest sized piece of anatomy.

--- End quote ---

Engineering is exact science. Next time please kindly pick more dependable units of measure :)

T3sl4co1l:

--- Quote from: ogden on November 07, 2022, 08:17:24 pm ---
--- Quote from: T3sl4co1l on November 07, 2022, 04:07:09 pm ---Interconnection from inverter modules (IGBTs) was dick-sized litz cable from NEWT.  (Yes, well, it just happens to be the nearest sized piece of anatomy.

--- End quote ---

Engineering is exact science. Next time please kindly pick more dependable units of measure :)

--- End quote ---

Come to think of it, even 7/46 litz is bigger than mine... I meant human median earlier, of course!

Tim

xavier60:
This transformer is from a Castolin Eutectic welder. Both primary and secondary windings are flat, the secondary being 1 turn per side.
The topology is phase shifting full bridge at 100KHz.
I'm guessing that the ring cores on the secondary outer legs are to soften the reverse recovery of the rectifier diodes.
Also, there is no output inductor. It must be making use of the welding leads' inductance for smoothing.

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