Universal Power Supply PCB - Page 2 - diyAudio
Go Back   Home > Forums > Commercial Sector > Vendor Forums > Audio Sector

Audio Sector Kits & PC boards from AudioSector

Reply
 
Thread Tools Search this Thread
Old 25th September 2009, 01:54 PM   #11
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
Jensens would probably be the top grade option, although a bit expensive.
Nichicons KG Super Through would be my next choice.

For other board options, use regulators datasheet and use recommended components. Here's one such schematic from LM317 datasheet.
Attached Images
File Type: png charger.png (16.0 KB, 3387 views)
__________________
www.audiosector.com
“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
  Reply With Quote
Old 18th October 2009, 02:04 AM   #12
diyAudio Member
 
vdi_nenna's Avatar
 
Join Date: Oct 2000
Location: PA, USA
Blog Entries: 1
Send a message via Yahoo to vdi_nenna
Peter or anyone,

Do the TO-247 rectifiers need isolation from the chassis?

thanks,

Vince
__________________
I build, therefore I am.
  Reply With Quote
Old 18th October 2009, 08:02 AM   #13
fff0 is offline fff0  Singapore
diyAudio Member
 
Join Date: Jul 2008
Hi Peter, what do you think of Epcos SIKOREL?

Hi Vince,,

I suggest you take a look at the datasheet, if the back its connected to any of the pins, cathode or anode, yes it needs to be isolated.
  Reply With Quote
Old 21st October 2009, 01:47 PM   #14
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
I don't have much experience with Sikorels. Used them only once in a PS and they seemed fine.
__________________
www.audiosector.com
“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
  Reply With Quote
Old 22nd October 2009, 02:54 PM   #15
fff0 is offline fff0  Singapore
diyAudio Member
 
Join Date: Jul 2008
Thanks peter.
  Reply With Quote
Old 27th November 2009, 02:43 PM   #16
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
I'd like to present here an example how to implement those boards in a stand alone PS.

I like to use 2 x 3 aluminum tubing for all my projects now. It simplifies chassis building as the main body of an enclosure consist of a single tube section cut to the required size, the end panels are really optional.

To reduce the amount of external screws, I'm using sub-plate to mount regulator board. The LM317 is installed on a sub-plate as well, as attaching screws inside the tube would be vary hard.

Transformer is mounted on a proto board, with p2p wiring. Please note that the Earth terminal from power entry module is soldered to a copper foil underneath one of the stand offs to ground the chassis.

Additional Burns potentiometer is used to set the output between 9-13V
Attached Images
File Type: jpg p1.jpg (191.0 KB, 3168 views)
File Type: jpg P2.jpg (193.3 KB, 3112 views)
File Type: jpg p3.jpg (194.4 KB, 3003 views)
__________________
www.audiosector.com
“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
  Reply With Quote
Old 27th November 2009, 03:03 PM   #17
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
Such assembly slides into the tubing and I'm only using 4 screws to secure it (additional soft pad on top of transformer prevents any movement).

This particular PS is intended for use with field coil of Fertin driver.

One pair of binding posts is for batteries attachment (in case batteries are not use, additional capacitor can be installed there), the other for driver connection. The toggle switch disconnects power to the driver, the potentiometer allows fine tuning of voltage output.
Attached Images
File Type: jpg p4.jpg (189.5 KB, 2847 views)
File Type: jpg p5.jpg (191.3 KB, 928 views)
File Type: jpg p6.jpg (195.1 KB, 929 views)
__________________
www.audiosector.com
“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
  Reply With Quote
Old 27th November 2009, 03:20 PM   #18
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
A piece of hard foam can be used to cover the opening.
Attached Images
File Type: jpg p8.jpg (192.7 KB, 804 views)
__________________
www.audiosector.com
“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
  Reply With Quote
Old 28th November 2009, 07:54 PM   #19
diyAudio Member
 
sandbasser's Avatar
 
Join Date: Sep 2008
Location: Riverside, CA - USA
Peter -

Your work is brilliant. Very creative use of materials and parts.

If you wouldn't mind, I have a couple of questions...

1) why do you cut the square piece out of the middle of the board to mount the regulator? Aren't the small round holes in the middle of the resistor layouts for that???
2) do you make the board standoffs yourself??? or wwhere you you get them (p/n please) ???- they almost look like bronze flanged bushings.
3) finally is the brand of the large 4700 uF cap ???

Thanks,
- Ray
__________________
- Ray

Last edited by sandbasser; 28th November 2009 at 07:55 PM. Reason: spelling
  Reply With Quote
Old 28th November 2009, 08:37 PM   #20
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
Ray, Thanks for the comments.

The round hole is too small for the screw head to go through, initially it was intended to improve air flow around resistor or heatsink, it can be also used as a mounting hole.

But now when you mentioned it, enlarging it would work fine. The cut out allows me to see better how regulator aligns on a mica pad, but it's not really critical.

The standoffs are indeed bronze flanged bushings, I bought them at local surplus outlet.

The cap is Roederstein (ROE); it's NOS but surprisingly good, in some applications better than BG.
__________________
www.audiosector.com
“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Split Voltage Switching Power Supply for Power Amp vectorplane Swap Meet 2 23rd April 2011 11:48 PM
LTspice tool for power amp power supply component evaluation andy_c Software Tools 2 23rd August 2009 05:10 PM
selling high current power supply for power amps. ericpeters Swap Meet 0 14th January 2005 02:21 PM
heater supply (xformer specs are 6.3V 2.5A) as supply for a power LED? jarthel Tubes / Valves 10 21st July 2003 01:30 PM


New To Site? Need Help?

All times are GMT. The time now is 08:27 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2