The size of LLC converters magnetics: Frequency dependence

[@leeackerson2579]

You are a talented teacher, wish you were around when I was in school.

[@sambenyaakov]

Never too late😊. Thanks. Comments like yours keeps me going.

[@codydowling1120]

Thanks Dr. Ben-Yaakov. Enjoyed this video very much!

[@sambenyaakov]

Thanks Cody

[@darrellhambley7245]

That was excellent Sam. Thank you.

[@sambenyaakov]

Thanks

[@TheAfricanEngineer]

Great insight. I thoroughly enjoy your videos. If you could release a series on how to design integrated magnetics specifically for the LLC. Is there some way of winding the coupled inductor such that the value of Lr can be controlled with accuracy?

[@sambenyaakov]

Thanks for comment. Goo topic. Will consider.

[@Regenersys_Fabio_Barone]

Just an observation: slides 2 and 3 have an error in the schematic. The diode bridge on the output is wrongly connected, the connections to the transformer secondary need to be swapped with the connections to Cout & Rload. Regards.

[@sambenyaakov]

Thanks for pointing out the typos.

[@AmitKumar-zb4li]

Nice Dr. Sam. I hope this true only for CCM ie only for one mode above resonant frequency in lagging power
mode.

[@mohamedarrach3688]

Thanks a lot Dr Sam for this video. I'm asking if you can upload a lecture about soft switching and resonant techniques.

[@sambenyaakov]

There are some videos on this subject at
ua-cam.com/users/sambenyaakovvideos

[@raviteza8]

Thank you very much for the interesting short video Dr. Ben-Yaakov. I have been looking for this PC200 ring cores for some time now from TDK to try, but apparently they are not much in stock. Perhaps still in development. But it looks like the k factor is not much different for 700 kHz to 3 MHz. So can we conclude that operating at 3 MHz brings not much difference in size as compared to 700 kHz ? Maybe other host of problems like proximity effects dominate at 3 MHz and so we need a larger core to manage the core loss density etc? Thank you.

[@sambenyaakov]

Hi ravi, thanks for comment. I also have the impression that 3MHz is not viable.

[@marcinszajner2924]

What do you think about classic serial LC resonant converter with burst mode?

[@sambenyaakov]

Higher rms current

[@bobvincent5921]

Not my strongest subject but enjoy the revision and always learn.

[@sambenyaakov]

Thanks

[@Hero-qe1nc]

Quick Compared LLC and LCC !!! @4WGg

[@jltsai4051]

Desr professor Yaakov,the aw(winding area)is circle or square.

[@sambenyaakov]

Could be either. Sometime in n a toroid (round) you mat not wish to fill up the Aw, See ua-cam.com/video/9RX-O2oollE/v-deo.html