high turns ratio SMD transformer

Apr 24, 2005 3 Replies
M

Might wanna consider a different circuit topology. Disclose your end goal. mike

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S

Does anyone know of a source of SMD transformer to be used to transform a low voltage (less than 3V) input to about 125 - 150V output? I'd like something in the range of 1:70 to 1:100 turns ratio. I can control the amplitude of the input. Google searches have been fruitless after several days of searching.



The oscillator feeding this can be set to run at various frequencies but I'll probably run at about 200KHz.



The secondary needs less than about 20uA. I'm trying to keep overall system power low, also.



Any ideas of vendors to search would be appreciated. I've tried Sprague-Goodman, Coilcraft, etc., but no one seems to have anything in this high turns ratio.



Thanks.



Dave


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B

formatting link

Regards,

Boris Mohar

Got Knock? - see: Viatrack Printed Circuit Designs (among other things)

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S

Thanks, I'll check it out.

Dave

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