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Post by Deleted on Mar 24, 2016 19:04:28 GMT
I use this circuit with filters. The main blocking caps are 2.5 Farads low volts and I do not allow them to be reversed biased more than 0.6VDC, choosing such large caps my seem silly but it works and it does keep the impedance low less than 10mΩ. And means they at high current lets say 10A will only dissipate 1W. and 2500uF will dissipate about 6.5W not good.
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Post by Sovereign on Mar 25, 2016 3:53:07 GMT
Really interesting Mr. W thank you
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Post by MartinT on Mar 25, 2016 8:05:53 GMT
You could easily test if you have high DC on your mains, with either a BMU or any transformer you know to get noisy. Test in two different places for loud humming. Better still, use a sensitive oscilloscope.
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Post by Deleted on Mar 28, 2016 14:47:07 GMT
It can also be seen on the output of the transformer as a flat top on the sin wave. Cause in some case saturation we cured this at Inca Tech and Tellurium Q and NOW by adding a winding increase of about 20% OK the transformer is bigger but silent.
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