Here is the new list
hifiramr
Powersuppe
454Casull
rebone
mordikai
chiily
sq225917
sadface
helmutholz
FLAMETHROWER1
ItsAllInMyHead
bravi
cal3713
Triodes4ever
rowli
Analogico
Powersuppe
454Casull
rebone
mordikai
chiily
sq225917
sadface
helmutholz
FLAMETHROWER1
ItsAllInMyHead
bravi
cal3713
Triodes4ever
rowli
Analogico
updated the availability/non-availability of paypal info in the google sheet itself.
regards
prasi
regards
prasi
Hello folks,
For people looking for a compact solution for crc psu using LT4320, here is a proposal...
The pcb below can be used for dual secondary as well as CT transformers.
1. in case of dual secondary, one could substitute the SIP rectifiers (B1 AND B2) (of the type https://www.vishay.com/docs/84807/pb3506.pdf) with my SMD LT4320 rectifier pcbs. (B3 and its snubbers unpopulated).
2. In case of CT trafo use, you could use the vishay sip rectifier with a heatsink similar to this ATS-PCB1061 Advanced Thermal Solutions Inc. | Fans, Thermal Management | DigiKey . Just cut off the support pins i not necessary.
I am posting a few 3D as well as sch, stuffing guide and gerbers for convenience here again (already posted in apex 100w amp thread but i guess its like finding needle in haystack)
Now the resistors can be 2 of bpr56 /58 -5W each side or 6 of 6mm dia max. axial resistors of 23mm pitch populated from bottom side.
I have tried to explain the use of psu in sch in a detailed manner, do have a careful look. The caps can be 35mm dia max with 10mm pitch-2pin OR 22.5mm pitch-4pin.
regards
prasi
For people looking for a compact solution for crc psu using LT4320, here is a proposal...
The pcb below can be used for dual secondary as well as CT transformers.
1. in case of dual secondary, one could substitute the SIP rectifiers (B1 AND B2) (of the type https://www.vishay.com/docs/84807/pb3506.pdf) with my SMD LT4320 rectifier pcbs. (B3 and its snubbers unpopulated).
2. In case of CT trafo use, you could use the vishay sip rectifier with a heatsink similar to this ATS-PCB1061 Advanced Thermal Solutions Inc. | Fans, Thermal Management | DigiKey . Just cut off the support pins i not necessary.
I am posting a few 3D as well as sch, stuffing guide and gerbers for convenience here again (already posted in apex 100w amp thread but i guess its like finding needle in haystack)
Now the resistors can be 2 of bpr56 /58 -5W each side or 6 of 6mm dia max. axial resistors of 23mm pitch populated from bottom side.
I have tried to explain the use of psu in sch in a detailed manner, do have a careful look. The caps can be 35mm dia max with 10mm pitch-2pin OR 22.5mm pitch-4pin.
regards
prasi
Attachments
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Thanks MLE, its not offtopic, they are meant to be beautiful, realistic and hopefully useful.
I have created an order link on the pcbway. if anyone wants to manufacture pcbs for themselves, they could use the below link and I will get 10% commission on the pcb manufacture cost (0.5USD for 5USD pcb cost), (barely) enough for a cup of tea on a roadside cafe...(pcbway donates the commission to the author without any extra cost while placing the order, so thank you pcbway...)
COMPACT CRC PSU-FOR ITHER DUAL SECONDARY OR CENTER TAPPED TRANSFORMERS - Share Project - PCBWay
I have created an order link on the pcbway. if anyone wants to manufacture pcbs for themselves, they could use the below link and I will get 10% commission on the pcb manufacture cost (0.5USD for 5USD pcb cost), (barely) enough for a cup of tea on a roadside cafe...(pcbway donates the commission to the author without any extra cost while placing the order, so thank you pcbway...)
COMPACT CRC PSU-FOR ITHER DUAL SECONDARY OR CENTER TAPPED TRANSFORMERS - Share Project - PCBWay
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After clicking the link, you can simply click add to cart and select shipping method and address and make payment. 10 pcbs of blue mask, hasl, 1 oz copper will be delivered to you.
Options of pcb:
while placing the order via the link, you have the option to edit quantities, mask color, hasl/enig, etc. if you like, but not copper thickness for some reason.
if you absolutely need 2oz thickness, you can mention in the comments box and even on the next page " the shopping cart / order review " page , there is a yellow email symbol that says "contact sales-rep" . You can send a message to them. They will change the required parameter and revise the cost within half an hour. Then, its simply paying and waiting for pcbs to be delivered.
Options of pcb:
while placing the order via the link, you have the option to edit quantities, mask color, hasl/enig, etc. if you like, but not copper thickness for some reason.
if you absolutely need 2oz thickness, you can mention in the comments box and even on the next page " the shopping cart / order review " page , there is a yellow email symbol that says "contact sales-rep" . You can send a message to them. They will change the required parameter and revise the cost within half an hour. Then, its simply paying and waiting for pcbs to be delivered.
Hello all,
The google sheet available on post # 744 and also same sheet here onwards will be having all the information.
I will post the status on the thread as soon as I get the boards and start sending invoices. The google sheet will have all the info including availability of paypal info& addresses , invoicing status, invoice reference no., payment status, shipping status, tracking numbers, and delivery status etc, as you may appreciate the fact that it will be difficult to send out individual information via pm to every member each time.
here is that google sheet which is also available on post # 744. i will be updating it periodically.
LT4320 RECTIFIER AND LT4320 CRC PSU GROUP BUY - Google Sheets
regards
prasi
The google sheet available on post # 744 and also same sheet here onwards will be having all the information.
I will post the status on the thread as soon as I get the boards and start sending invoices. The google sheet will have all the info including availability of paypal info& addresses , invoicing status, invoice reference no., payment status, shipping status, tracking numbers, and delivery status etc, as you may appreciate the fact that it will be difficult to send out individual information via pm to every member each time.
here is that google sheet which is also available on post # 744. i will be updating it periodically.
LT4320 RECTIFIER AND LT4320 CRC PSU GROUP BUY - Google Sheets
regards
prasi
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Any idea about the power transistors mosfet on this PSU. The recommended one was this - IPP029N06NAKSA1 Infineon Technologies | Mouser which seems to be out of stock on Mouser, but I could find similar from Infineon - IPP029N06N Infineon Technologies | Mouser
Parameters seems to be same but the mosfet needs to be lowest noise possible. Any suggestion for replacement or if this is fine?
Thanks
Parameters seems to be same but the mosfet needs to be lowest noise possible. Any suggestion for replacement or if this is fine?
Thanks
transformer damping
I see the boards are prepared for the Quasimodo CRC . Values 10n, 150n are calculated for diodes . I don't see clearly the utility with this kind of bridge.
Someone for a tutorial or a blind test ?
I see the boards are prepared for the Quasimodo CRC . Values 10n, 150n are calculated for diodes . I don't see clearly the utility with this kind of bridge.
Someone for a tutorial or a blind test ?
Hello Manniraj,
They seem to have almost the same specs. So, ok.
Follow comprehensive guidelines given by tvicol here
LT4320 based active rectifier
regards
prasi
They seem to have almost the same specs. So, ok.
Follow comprehensive guidelines given by tvicol here
LT4320 based active rectifier
regards
prasi
They are kept as option, as some members wanted them. You can use the ideal bridge without them.
Hello folks, there is some delay in production of pcbs. as if the covid-19 wasnt enough, a cyclone ( Cyclone Nisarga - Wikipedia )in last week had damaged some electricity installation in the industrial area. So the new dates as given by board house are as follows.
LT4320 BASED CRC PSU (ANALOG DESG ) ---------------17/06/2020
CRCRC PSU FOR CLASSA AMPS ---------------------------17/06/2020
LT4320 ACTIVE BRIDGE CONTROLLER (THT)------------------24/06/2020
LT4320 IDEAL BRIDGE CONTROLLER (SMD)--------------------24/06/2020
LT4320 BASED CRC PSU (ANALOG DESG ) ---------------17/06/2020
CRCRC PSU FOR CLASSA AMPS ---------------------------17/06/2020
LT4320 ACTIVE BRIDGE CONTROLLER (THT)------------------24/06/2020
LT4320 IDEAL BRIDGE CONTROLLER (SMD)--------------------24/06/2020
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Ok, thanks Harry for your understanding.
I will ship mixed orders (CRC-LT4320 / regular CRCRC and rectifier pcbs ) after 24th June.
Only Pure LT4320-CRC and regular CRCRC subscriptions , I will try to ship earlier as soon as PCB are delivered .
regards
prasi
I will ship mixed orders (CRC-LT4320 / regular CRCRC and rectifier pcbs ) after 24th June.
Only Pure LT4320-CRC and regular CRCRC subscriptions , I will try to ship earlier as soon as PCB are delivered .
regards
prasi