Author Topic: How many gate drives are needed.  (Read 225 times)

Offline thedoc298

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How many gate drives are needed.
« on: March 31, 2024, 10:31:10 PM »
I have one large area gdt wound following instruction on this site, it has one primary and 4 outputs as in the picture.

I have also wound two individual gdt as described by  davekni each has one primary and 2 outputs.

Is it still the best to go with the two gdt one for each 1/2 bridge. The reason I ask is I have seen both ways.

Offline davekni

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Re: How many gate drives are needed.
« Reply #1 on: March 31, 2024, 11:00:57 PM »
Quote
I have one large area gdt wound following instruction on this site, it has one primary and 4 outputs as in the picture.
If not using a pulse-skip driver needing two GDTs, one is fine.  However, it is best to wind the one with four twisted pairs, not just three.  Primary is four parallel windings, one wire from each pair.  Secondaries are other winding of each pair.
If you have already made two GDTs with two twisted pairs each as in my tutorial, that works just as well as a single GDT with four twisted pairs.
David Knierim

Offline thedoc298

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Re: How many gate drives are needed.
« Reply #2 on: April 01, 2024, 06:03:54 PM »
Quote
I have one large area gdt wound following instruction on this site, it has one primary and 4 outputs as in the picture.
If not using a pulse-skip driver needing two GDTs, one is fine.  However, it is best to wind the one with four twisted pairs, not just three.  Primary is four parallel windings, one wire from each pair.  Secondaries are other winding of each pair.
If you have already made two GDTs with two twisted pairs each as in my tutorial, that works just as well as a single GDT with four twisted pairs.

Thanks very much, I feel bad bugging you guys and really appreciate having accurate info. All the gdt I have made were just for testing, I want a little bigger wire than cat5 for the final. Thanks again I'm on final assemble and testing.   

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Re: How many gate drives are needed.
« Reply #2 on: April 01, 2024, 06:03:54 PM »

 


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