|
|||||||
| Home | Forums | Rules | Articles | Store | Gallery | Blogs | Register | Donations | FAQ | Calendar | Search | Today's Posts | Mark Forums Read | Search |
| Parts Where to get, and how to make the best bits. PCB's, caps, transformers, etc. |
  |
|
|
|
Please consider donating to help us continue to serve you.
Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving |
 |
|
|
Thread Tools | Search this Thread |
19th August 2004, 08:40 PM
|
#1 |
|
diyAudio Member
Join Date: May 2004
Location: Milwaukee, WI
|
Dual 15V Regulated Supply
Just wanted to have the forum take a look at this to make sure I didn't goof anything up. It's a basic, regulated power supply for some things I'll be working on. Thanks in advance!
All Diodes = 1N4004 C2 - C5 = 1000uF 35V C6 - C13 = 20uF 35V Tantalum R1,R2,R5,R6 = 240 R3,R4,R7,R8 = 2.7k
__________________
gravity always wins |
|
|
28th August 2004, 12:24 AM
|
#4 |
|
diyAudio Member
Join Date: May 2004
Location: Milwaukee, WI
|
Well, I've made some pretty substantial changes to my layout, as well as switched to Eagle (wow, what a difference). Just wanted to have people take a peak and see if they notice anything glaringly wrong with my schematic/board layout.
Thanks 
__________________
gravity always wins |
|
|
|
28th August 2004, 02:05 AM
|
#5 | |
|
diyAudio Member
Join Date: Apr 2002
Location: Llanddewi Brefi, NJ
|
Re: Dual 15V Regulated Supply
Quote:
why make when you can buy a dual 15V Lambda supply for under $20 bucks on EBay. Search under Business/Test Equipment/Power Supplies |
|
|
|
|
28th August 2004, 08:39 AM
|
#6 |
|
diyAudio Member
Join Date: Aug 2003
Location: Indiana USA
|
Can we just buy one?
HI,
Do you guys know where to buy power supply PCB in USA? I am looking for a bare pcb with two positive voltage output. Thanks, CC |
|
|
|
28th August 2004, 05:34 PM
|
#7 |
|
diyAudio Member
Join Date: May 2004
Location: Milwaukee, WI
|
Well, it's not a dual supply anymore, and I should have labeled the ICs better in the new version. It has an LM7805 for a 5V output and also has an LM2940 for 12V output (for some 12V relays).
Besides, where's the fun in buying it?
__________________
gravity always wins |
|
|
|
1st September 2004, 01:28 AM
|
#8 |
|
diyAudio Member
Join Date: Mar 2004
Location: Seattle
|
High frequency bipass capacitors?
You can get "motorboating" (pulsing output). It's probably a good idea to put smaller capacitors right at the regulators and in parallel with the large tant's. These should be good ceramics -- I like .022 or .047 although the common value is .1.
The National LM117 datasheet has a good discussion of why they are needed and where to put them.
__________________
Dr. Dagor |
|
|
|
| Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
| Thread Tools | Search this Thread |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| LT Dual Tracking 3A Regulated Power Supply 1.25V to 20V | okapi | Power Supplies | 56 | 9th July 2010 02:33 AM |
| Combining two positive regulated suppiles for obtaining a a dual one | Atilla | Power Supplies | 9 | 30th July 2009 10:49 PM |
| 3 Pin regulated supply VS zener based supply | KevinLee | Solid State | 3 | 15th September 2008 02:40 PM |
| Multiple purpose dual regulated psu | cviller | Power Supplies | 13 | 26th February 2008 06:03 AM |
| high-voltage regulated dual power supply | zzz | Solid State | 1 | 17th September 2002 01:15 AM |
| New To Site? | Need Help? |
| Page generated in 0.09555 seconds (76.26% PHP - 23.74% MySQL) with 11 queries |
)
