Yes that is pretty much it. Just Ohms law with regard to Rds on, assuming full maximum duty cycle.Warpspeed imagine que I use a full-bridge topology based, so there are 2 MOSFET in series with this current, If i use 3 mosfets (IPB027N10N3 2.7k Ohm) in parallel for each switch, the conduction losses are: 2x (2.7m / 3) x 100² = 18W. Is this correct?
You can do a pretty good job on a push pull transformer primary with a pair of interleaved foils. The killer for leakage inductance is usually the wire lengths outside the transformer between foils and drains.I'm also afraid of using any Push-pull topology at this power and frequency because of the leakage flux.
You could ask a local transformer manufacturer, they should have foil in stock for fitting electrostatic screens between windings.Is there any online store for cooper foils?
Here in Brazil is very difficult to buy it.
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