LLC controller with multiple transformers parallel

evs

Genius 5910 points

I'm disappointed in the quality and pricing of custom transformers manufactures. So I was thinking out of the box.

If I use standard LLC transformers and put them parallel at the high side and in series in the low side.

How does that effect Lr and Lm?

Can I use the parallel value of Lr en Lm in my calculations? Or is there more to it?

Thanks!

over 8 years ago

0 Peter Meaney over 8 years ago

TI__Mastermind 31580 points

Hi

I cannot get a clear picture of the circuit arrangement for the transformer connections. Can you attach a simple schematic ?

Thanks

Peter

0 evs over 8 years ago in reply to Peter Meaney

Genius 5910 points

Peter Meaney said:
Hi

I cannot get a clear picture of the circuit arrangement for the transformer connections. Can you attach a simple schematic ?

Thanks

Peter

Like this.

For every transformer Lm=475uH and Ls=100uH

So is the total value of all the transformers: Lm = 119uH and Ls=25uH?

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LLC controller with multiple transformers parallel