what schottky have been used?

freakyone · 29th April 2006, 11:27 PM

hello Team!!

Ive read Schottky have the best sound chararistics.

Thinking of using MBR1645 for my dual bridge AX-100

but these are rated at 16A, 45v TO-220AC

Would like to go larger but having problems with the 3 pin schottky Diodes
I can find common cathode but no common Anode to make up a bridge.

IS 16A forward current enough on the MBR1645?
Me thinks it is

Thanks in advance
Dan

freakyone · 29th April 2006, 11:41 PM

forgot -Will be using soft start!

N-Channel · 30th April 2006, 06:27 AM

Dan,

As far as I know, there is no common-anode 3-pin schottky. To make a two unit full bridge, you will need to use the MUR1620CT and MUR1620CTR (common-cathode and common-anode, respectively). These ultrafast dual-unit rectifiers are made by OnSemi. I have used them in SMPSs for several years now, with good success.

Same types you would find in most car amps with PWM DC-DC converters.

Hope this helps!

Regards,

Steve

Ryssen · 30th April 2006, 06:47 AM

Quote:

Ive read Schottky have the best sound chararistics.

How about switch diods,like Byv26 or Byw95 wich im using,any diffrence in sound?Thowe not as powerful as 16A.

wuffwaff · 30th April 2006, 07:55 AM

Hi,

I´ve used STPS 80H100TV in my Aleph-X. One piece = 2 Schottkys

William

freakyone · 30th April 2006, 08:45 AM

Hello William

Have you priced these puppies!!!

If i remember correctly you purchased from the Trading Post.

freakyone · 30th April 2006, 09:07 AM

NP said he is using BYW99W-200 in the XA series.
These are three pin common cathode

Just how do you make a bridge with only common cathode??

This is causing some headache!!

Mad_K · 1st May 2006, 08:38 AM

Quote:

Originally posted by freakyone

Just how do you make a bridge with only common cathode??

Put the (dual) diodes in paralell...

Greg Erskine · 1st May 2006, 10:29 AM

Quote:

Originally posted by freakyone
Just how do you make a bridge with only common cathode??

This is causing some headache!!

Use 3.

freakyone · 5th May 2006, 09:18 AM

How does this look?

Cheers in advance
Dan

29th April 2006, 11:27 PM	#1
freakyone diyAudio Member Join Date: Sep 2005	what schottky have been used? hello Team!! Ive read Schottky have the best sound chararistics. Thinking of using MBR1645 for my dual bridge AX-100 but these are rated at 16A, 45v TO-220AC Would like to go larger but having problems with the 3 pin schottky Diodes I can find common cathode but no common Anode to make up a bridge. IS 16A forward current enough on the MBR1645? Me thinks it is Thanks in advance Dan

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29th April 2006, 11:41 PM	#2
freakyone diyAudio Member Join Date: Sep 2005	forgot -Will be using soft start!

30th April 2006, 06:27 AM	#3
N-Channel diyAudio Member Join Date: Mar 2003 Location: Sol System	Dan, As far as I know, there is no common-anode 3-pin schottky. To make a two unit full bridge, you will need to use the MUR1620CT and MUR1620CTR (common-cathode and common-anode, respectively). These ultrafast dual-unit rectifiers are made by OnSemi. I have used them in SMPSs for several years now, with good success. Same types you would find in most car amps with PWM DC-DC converters. Hope this helps! Regards, Steve

30th April 2006, 08:45 AM	#6
freakyone diyAudio Member Join Date: Sep 2005	Hello William Have you priced these puppies!!! If i remember correctly you purchased from the Trading Post.

30th April 2006, 09:07 AM	#7
freakyone diyAudio Member Join Date: Sep 2005	NP said he is using BYW99W-200 in the XA series. These are three pin common cathode Just how do you make a bridge with only common cathode?? This is causing some headache!!

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