Do you need to add snubber rc like with a standard diode bridge or there is no ringing with this solution ?
What is the definitive answer ?
What is the definitive answer ?
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Hi thank you, i have already read it, but is it the definitive answer ? because he said 'many guys have said'. But was it tested ?
Hi,
Is it possible to operate the LT4320-based active rectifier with a voltage higher than this 72 V?
Is it possible to operate the LT4320-based active rectifier with a voltage higher than this 72 V?
Is there ever a definitive answer? I just trusted Prasi's experience and took his suggestion.
IIRC correctly the answer is 'no' for this board but higher voltage 'ideal regulators' are possible - check out the group buy threads of DIY member 'tvicol'
Interesting idea this ideal rectifier
For an class A amp (1.5A idle current) with 2x 15V AC to be rectified, should i get the SMD version or better the Through hole one ?
For an class A amp (1.5A idle current) with 2x 15V AC to be rectified, should i get the SMD version or better the Through hole one ?
Hi, any version (SMD /THT rectifier ) would work equally well.
Or even the CRC PSU PCB with LT4320 will make a complete PSU.
regards
Prasi
Or even the CRC PSU PCB with LT4320 will make a complete PSU.
regards
Prasi
Ok thanks Prasi
With CLC filter of 31000 uF 3,5 mH 31000 uF wich mosfets in SMD do you suggest ?
With CLC filter of 31000 uF 3,5 mH 31000 uF wich mosfets in SMD do you suggest ?
Either SMD or THT both will work.
I have few SMD boards, even few THT.. if you need them.
The schematic posted in the begineeing of thread gives a list of possible mosfets.
Low RDSon, high VDs, Vgsth 2-3 V, and Qg, less than 30 or 50 Nc
Hello,
I've the boards, now I need mosfets. Anyone can suggest me good one, not too expensive for a 35VAC transformer on Digikey?
Regards
Guglielmo
I've the boards, now I need mosfets. Anyone can suggest me good one, not too expensive for a 35VAC transformer on Digikey?
Regards
Guglielmo
Hello Guglielmo,
Here the link to sch that give some options of mosfets. Do check out.
https://www.diyaudio.com/community/threads/lt4320-based-active-rectifier.336572/post-5789966Once you place your 2-3 choices here, I can find out which will be best for you.
Here the link to sch that give some options of mosfets. Do check out.
https://www.diyaudio.com/community/threads/lt4320-based-active-rectifier.336572/post-5789966Once you place your 2-3 choices here, I can find out which will be best for you.
FWIW, I picked the SUP70060E-GE3 for a low RDSon, current and voltage were fine, and its in stock at Mouser.
Also not as expensive as some other options.
It has a Qg of 53.5 nC, so seems like a reasonable choice.
Hello,
I must by on Digikey.
I'll use with 24VAC 3A load
What about:
https://www.digikey.it/en/products/detail/infineon-technologies/IRL530NPBF/811878or
https://www.digikey.it/en/products/detail/vishay-siliconix/IRL540PBF/812025
Thanks
Guglielmo
I must by on Digikey.
I'll use with 24VAC 3A load
What about:
https://www.digikey.it/en/products/detail/infineon-technologies/IRL530NPBF/811878or
https://www.digikey.it/en/products/detail/vishay-siliconix/IRL540PBF/812025
Thanks
Guglielmo
Fellas,
Go to post #1 and pull up the schematic. Prasi included a list of MosFet possibilities. If none of them are in stock, look for alternatives with similar specs.
Go to post #1 and pull up the schematic. Prasi included a list of MosFet possibilities. If none of them are in stock, look for alternatives with similar specs.
Hello all. Can someone please explain why we need the small 1uF cap? Is it there solely to. Protect the LT4320? Will the rectifier run perfectly well without it?
Thanks.
Thanks.