Author Topic: Full wave CW Multiplier possible punch through  (Read 931 times)

Offline davekni

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Re: Full wave CW Multiplier possible punch through
« Reply #20 on: July 28, 2022, 04:06:37 AM »
Quote
As soon as I begin to draw some current, popping.
Only possibility that comes to mind is that some component (diode or capacitor) might have failed.  This two-sided (full-wave) multiplier will function even if only one side is good.  If some capacitor has failed to much lower value, that would explain different loaded vs. unloaded behavior.  Perhaps a bad diode could cause issues, but I haven't thought through any possibilities to match your symptoms.

One option is to ignore the popping until something fails harder.  However, that could mean more failed parts in the end.

Good luck!
David Knierim

Offline FonziDaytona

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Re: Full wave CW Multiplier possible punch through
« Reply #21 on: July 29, 2022, 12:51:08 AM »
My transformer failed :-(

That’s what I get for winding a coil with wide dimensions and little space near the edges.


I’m now thinking about switching to a multi section bobbin, 3D printed (no access to or ability with a machine shop). Fortunately, I found what looks to be the perfect design already made.

https://www.thingiverse.com/thing:5241175#Summary

I’ll need to scale up a little because my core is very large. I plan to use a nylon SLS 3D print. The 11 sections will be divided into two coils (5 sections per coil) with one section left empty for the center tap connection.

Before I order a pricey print, anything I’m missing here?

-Matt

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Re: Full wave CW Multiplier possible punch through
« Reply #21 on: July 29, 2022, 12:51:08 AM »

 


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