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LT4320 based active rectifier

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R

randytsuch

Member
Joined 2003
randytsuch-audio.blogspot.com/2005/10/my-system.html
prasi said:
Please update the requirements in the above list (copy both lists and type in your requirements in appropriate list and update the totals).


regards
Prasi
Click to expand...

Are you going to order more LT4320 based CRC PSU PCBs too?

I plan to buy some THT rectifier boards, but how many depends on your answer.

Thanks
Randy
 
prasi

prasi

Member
Joined 2014
sites.google.com/site/analogdesign1234/
Paid Member
prasi said:
the "only rectifier" THT and SMD boards are all gone. I think I will produce few more of those in near future, may be 50 pairs each. People keep asking me .

Meanwhile I will also produce a few more of these CRC boards just to take care of sporadic requirements.
Click to expand...

randytsuch said:
Are you going to order more LT4320 based CRC PSU PCBs too?

I plan to buy some THT rectifier boards, but how many depends on your answer.

Thanks
Randy
Click to expand...

yes, I have ordered
1. SMD and THT rectifier boards - 60 pairs
2. LT4320-CRC PSU PCBs - 50 nos.

regards
Prasi
 
alazira

alazira

Member
Joined 2007
SMD and THT rectifier only boards

tomtest: SMD: 4 pairs, THT 4 Pairs
wgh52: SMD 18 pairs, THT 16 pairs
randytsuch = SMD 2 pairs , THT 3 pairs
alazira: THT 6 pairs

Total : 24 pairs SMD , 29 pairs THT

LT4320 based CRC PSU PCBs

vvs07 = 4 nos.
randytsuch = 2 nos.
tubesguy = 2 nos.
windwardmt = 4 nos.
alazira = 2 nos

total 14 nos.
 
grufti

grufti

Member
Joined 2004
SMD and THT rectifier only boards

tomtest: SMD: 4 pairs, THT 4 Pairs
wgh52: SMD 18 pairs, THT 16 pairs
randytsuch = SMD 2 pairs , THT 3 pairs
alazira: THT 6 pairs
grufti = SMD 4 pairs

Total : 28 pairs SMD , 29 pairs THT

LT4320 based CRC PSU PCBs

vvs07 = 4 nos.
randytsuch = 2 nos.
tubesguy = 2 nos.
windwardmt = 4 nos.
alazira = 2 nos
grufti = 2 nos

total 16 nos.
 
T

tomtest

Member
Joined 2018
Changed pairs

SMD and THT rectifier only boards

tomtest: SMD: 10 pairs, THT 5 Pairs
wgh52: SMD 18 pairs, THT 16 pairs
randytsuch = SMD 2 pairs , THT 3 pairs
alazira: THT 6 pairs
grufti = SMD 4 pairs

Total : 34 pairs SMD , 30 pairs THT

LT4320 based CRC PSU PCBs

vvs07 = 4 nos.
randytsuch = 2 nos.
tubesguy = 2 nos.
windwardmt = 4 nos.
alazira = 2 nos
grufti = 2 nos

total 16 nos.
 
M

mpa

Member
Joined 2010
A couple of pics of the boards to see if everything looks ok? Minus the LT4320's as I can't mount them until I get the correct DIL sockets.
 

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R

Rinman77

Member
Joined 2019
analog_sa said:
No problem with the staggering but why all these snubbers? No harm done only these circuits require no snubbers.
Click to expand...

Hi,
Could you elaborate on this? As I understood it, standard diode bridge rectification triggers ringing because of the 0.6 cutoff of the diodes--but 4320 cures that by turning on/off at 0 crossover. But are there not other triggers for ringing that could occur? I've been wondering this for a while.
I understood that the snubbers were still being recommended, and thus assumed other transients could induce the ringing--although perhaps not so frequently.
Or is there another reason you consider the snubbers unneccesary?
Ron
 
prasi

prasi

Member
Joined 2014
sites.google.com/site/analogdesign1234/
Paid Member
mpa said:
Just about to stuff my CRC PCB's but I managed to order the wrong DIL socket so will have to wait for some more :(
A couple of quick questions from a noob though! What is the purpose of C1, C9 and R9? Are these all optional?
Click to expand...

Hello mpa,
nicely done.
C1 is a small electrolytic about 220uf, that would help reduce inductance. suggested by a kind member.
C9/R9 is an output snubber.


regards
Prasi
 
prasi

prasi

Member
Joined 2014
sites.google.com/site/analogdesign1234/
Paid Member
SMD and THT rectifier only boards

tomtest: SMD: 10 pairs, THT 5 Pairs
wgh52: SMD 18 pairs, THT 16 pairs
randytsuch = SMD 2 pairs , THT 3 pairs
alazira: THT 6 pairs
grufti = SMD 4 pairs
Destroyer OS = SMD=4 PAIRS, THT= 4 PAIRS

Total : 38 pairs SMD , 34 pairs THT

LT4320 based CRC PSU PCBs

vvs07 = 4 nos.
randytsuch = 2 nos.
tubesguy = 2 nos.
windwardmt = 4 nos.
alazira = 2 nos
grufti = 2 nos

total 16 nos.
 
prasi

prasi

Member
Joined 2014
sites.google.com/site/analogdesign1234/
Paid Member
zman01 said:
Regarding MOSFETs, I am looking at other options besides the CSD19535KCS listed as an example in Prasi's bill of materials.

How about STP110N8F6?

Suggestions are welcome. :)
Click to expand...

Qg is quite high.
Somewhere towards the beginning of thread tvicol and myself had posted suggestions regarding suitability criteria.
low Qg, High VDs, Low Rds-on and Vgsth=2.5-4.5, etc.

please read it. Also For SMD/THT rectifier only boards i had posted sch with many options.
Also some suggestions by Danny_66
LT4320 based active rectifier
 
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