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### Author Topic: 170 watts in - 1600 watts out - looped - Very impressive build and video  (Read 230340 times)

• Sr. Member
• Posts: 311
##### Re: 170 watts in - 1600 watts out - looped - Very impressive build and video
« Reply #495 on: April 15, 2018, 12:57:40 AM »
I have my doubts as well in this regard and for the following reason.  The transformer used in the typical microwave oven for economics sake is designed to operate near maximum flux density of ~1.5T at 50 or 60 Hz depending on location.  If this transformer is run from say a frequency 20% lower than the specified operating frequency, the laminated iron core will saturate and draw a considerably larger current than normal.  If operated at a frequency of 10-20 Hz, the saturation current would be limited only by the dc resistance of the primary and would be huge!  This raises a huge red flag for me and IMO has not been addressed by anyone satisfactorily.  However, for the time being I will give Pierre the benefit of the doubt until evidence points otherwise.

I have put that question before: My MWO= 800W , Pierres MWO=1500W But but The bulb inside the micro was lit steady!  No flickering at 13-15 Hz!

Quote
Ah yes, so you know exactly what I'm talking about regarding the couplings.  There is a way to simulate any electromagnetic topology in LtSpice and that is to model the core and windings with gyrators and capacitors using behavioral sources but the degree of difficulty for this type of device would be so complex that it would be easier to just build it!

I'm cheating also with LtSpice

Regards Arne

#### gotoluc

• elite_member
• Hero Member
• Posts: 3096
##### Re: 170 watts in - 1600 watts out - looped - Very impressive build and video
« Reply #496 on: April 15, 2018, 05:33:52 PM »
This topic is now Locked since there is no point of having 2 topics to moderate. However, it is still viewable since it is the original topic and contains many details.
The below link will bring you to the continued open topic.

Fr. Ce sujet est maintenant verrouillé car il n'y a aucune raison d'avoir 2 sujets à modérer. Cependant, il est toujours visible car il s'agit du sujet d'origine et contient de nombreux détails.
Le lien ci-dessous vous amènera au sujet ouvert de continuation.

http://overunity.com/17653/pierres-170w-in-1600w-out-looped-very-impressive-build-continued-moderated/#.WtNxItYpDM0