Can you send me the link to the post where to find the CRC psu you're referring to? The one I see at the beginning of the thread is a cap multiplier psu.
Thanks
Do
Voxx,
Post the CRC schematic you are referring to, I believe there are a couple slightly different versions in this thread.
Post the CRC schematic you are referring to, I believe there are a couple slightly different versions in this thread.
I've got a pair of bare boards you can have for the cost of the postage - I'm in the UK
Can you please PM me your shipping cost to Montreal, Canada and your PayPal email address?
Thanks a lot! 🙂
Do
Hi all, I try this rectifier and for me is a huge upgrade. Now I want do a little pcb all smd with 4 channel mosfet. Anyone have some idea wich one I can use? Regards
@Sgaga
If intention is to make a compact layout without compromising the max. current/voltage rating, there have been such designs, such as this one:
All SMD Ideal Bridge
However I can't answer your question about which 4-channel MOSFET would be suited to working with LT4320. As far as I learned from other members' research, beside the rated Idmax, Vds, and Rds-on, a high-ish Vth is desirable for a MOSFET to work properly with LT4320. The MOSFET CSD19531Q5A in the above example has a typ. Vth at 2.7V, not quite particularly high in the crowd but proven working with no issues. I'm not aware of a quad SMD MOSFET that would satisfy all these characteristics.
If intention is to make a compact layout without compromising the max. current/voltage rating, there have been such designs, such as this one:
All SMD Ideal Bridge
However I can't answer your question about which 4-channel MOSFET would be suited to working with LT4320. As far as I learned from other members' research, beside the rated Idmax, Vds, and Rds-on, a high-ish Vth is desirable for a MOSFET to work properly with LT4320. The MOSFET CSD19531Q5A in the above example has a typ. Vth at 2.7V, not quite particularly high in the crowd but proven working with no issues. I'm not aware of a quad SMD MOSFET that would satisfy all these characteristics.
You're aware that Prasi has already designed such a board? Check out the first post of this thread.
Hi Prasi,
is there any extra PCB Board? also please send suitable Mosfet for this design?
Thanks,
odie1427
is there any extra PCB Board? also please send suitable Mosfet for this design?
Thanks,
odie1427
Hello Odie,
i have about 20 pairs of the smd lt4320 pcbs, enig finish. the following design
https://www.diyaudio.com/community/threads/lt4320-based-active-rectifier.336572/post-6210152
i have about 20 pairs of the smd lt4320 pcbs, enig finish. the following design
https://www.diyaudio.com/community/threads/lt4320-based-active-rectifier.336572/post-6210152
Just checking…this will not work as a substitute for the standard bridge rectifier in center tapped supplies, right?
Best,
Anand.
Best,
Anand.
No Anand,
there has been some diccussion here in this thread and also in tvicol's thread on this.
regards
prasi
there has been some diccussion here in this thread and also in tvicol's thread on this.
regards
prasi
Anand,
the short answer is: NO!
Longer answer: Separate windings and rectification are required for each half of a symmetric supply and these are then "stacked" with their outputs to form the two Ground centered Voltages. Practical tests (years ago) yielded misfunction of the LT4320 due a MOSFET staying open when it should isolate. The LT4320 is designed for untapped windings!
In a PhonoPre power supply application I had to exchange the center tapped against a two secondary windings transformer, but the sound quality adavantages were worth it (at least to me and the owner).
Greetings,
Winfried
There IS one that'll work with a CT transformer from tvicol but it's not a simple thing at all - the current version of the HVHF (III) does high voltage too - the freight from middle Europe is a bit crazy at present - I think there's some new ones nearly ready that'll also do CT transformers too - the fets they use ae nearly "unobtainable" to us.
@jameshillj
Thanks. Yes, I am waiting for his Universal board to be released as that seems to be compatible with center tapped PS designs. Won’t be out until early next month.
Best,
Anand.
Thanks. Yes, I am waiting for his Universal board to be released as that seems to be compatible with center tapped PS designs. Won’t be out until early next month.
Best,
Anand.
Hi Prasi,
Sent you pm.
Hi Prasi,
Please spare me for 2pairs for SMD board and 2 pairs for THT board. How much it that cost.? Please include the shipping charges.
Thanks,
odie