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Old 19th April 2004, 09:14 AM   #1
Did it Himself
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Default Rectifier Diodes

I don't believe that the sound of different diodes used in rectifiers can be detected, but I do believe that there can be EMI benefits by selecting the correct rectifier diode.

Are Schottky diodes quieter/softer in terms of emissions than Ultrasoft? What exactly are HEXFREDs?
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Old 19th April 2004, 10:35 AM   #2
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There's a lot of links on this subject.

High Speed Diodes
Power Supply Freds, Hexfreds, Ultrasofts, Ultrafasts and Fast Recovery
Using discrete diodes instead of rectifying bridges.
Rectifiers for the GC

This is just the tip of the iceburg.
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Old 19th April 2004, 11:18 AM   #3
roibm is offline roibm  Romania
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I think it is the time to implement two checkboxes for confirming that you've seached before being allowed to post

just a tip
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Old 19th April 2004, 12:17 PM   #4
Did it Himself
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Cheers guys.

Just like to point out that I did search. I get annoyed myself when I see people posting that is obvious stuff that could be easily searched for, so I triued hard not to fall victim to this. Unfortunately there's so much 'noise' to wade through I still didn't find definitive answers when I tried.

One of those links roddyama posted was good though and has helped a lot

MBR20200 looks like a good choice.
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Old 19th April 2004, 12:38 PM   #5
fcel is offline fcel  United States
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Regarding searching on this forum, very often I get frustrated too.

It's just like getting a loan from the bank. If you want to borrow some money, you have to prove to the bank that you don't need it.

If you want to search something, you have to have read it somewhere here previously. Otherwise you won't know where to start, especially if you are new here.

Anyway, just my thoughts and I have always wanted to mention it.
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Old 19th April 2004, 01:05 PM   #6
ClassD is offline ClassD  Australia
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Default Re: Rectifier Diodes

Quote:
Originally posted by richie00boy
I don't believe that the sound of different diodes used in rectifiers can be detected, but I do believe that there can be EMI benefits by selecting the correct rectifier diode.

Are Schottky diodes quieter/softer in terms of emissions than Ultrasoft? What exactly are HEXFREDs?

Seriously I don't see what the diffrence would be at 50/60Hz.
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Old 19th April 2004, 01:41 PM   #7
grataku is offline grataku  United States
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Default Re: Re: Rectifier Diodes

Quote:
Originally posted by ClassD



Seriously I don't see what the diffrence would be at 50/60Hz.

That's not the way life works, young man. You got a lot of reading to do.
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