Hi There,

I would really appreciate some advice with a project I am trying to complete. Basically I am constructing a mock display panel 15feet long consisting of both flashing and permanently lit leds. I bought a Versatile Pic Flasher project 3169 from Quasar Electrics (www.quasarelectronics.com/3169.htm) and have sourced a number of various leds to accompany this. This is where the advice would really be appreciated. Although I am fairly competent at soldering, I need help calculating the power supply and then choosing that power supply as well as any resistors needed. A quick confirmation of the wiring method would be great too. There will be about 69 equally spread across the 8 outputs in no particular order or grouping.

For the permanently lit leds, there are 79 of these of various specs which also need a power source to be worked out and supplied.

All this will be indoors and powered via 230V mains.

As for the specs of the Leds - I have listed these below with all relevant details (I Hope!)

Really hope someone can help!

Many thanks in advance,

Permanently On list

Size * Colour * Wavelength * Mcd * Vf(V) * Degree * Qty
3mm * Yellow * 585 – 595mm * 2000-3000 * 1.9 – max 2.1 * 20 * 3
3mm * Diff. Blue * 460 – 470mm * 150 – 200 * 3.0 – 3.6 * 120 * 3
3mm * White Diff. Red * 620 – 630mm * 200 – 250 * 1.8 – 2.4 * 120 * 5
5mm * Wide Angle White * 600 – 1000 * 3.0 – 3.6 * 120 * 2
5mm * Orange * 600 – 615 * 3000 – 4000 * 1.8 – 2.4 * 20 * 6
5mm * White Diff. Yellow * 585 – 595 * 250 – 350 * 1.8 – 2.4 * 120 * 4
5mm * Wide Angle Yellow * 585 – 595 * 200 – 400 * 1.8 – 2.4 * 120 * 4


10 Segment Display

Colour Red Green
Max Forward Current
Per Segment 30mA 30mA
Per Package 200mA 160mA
Light Output at
IF = 20mA 4.0mcd 3.0mcd
Forward Voltage at
IF = 20mA 2.0V 2.2V
Peak inverse voltage 5V 5V
Quantity 2 (x10) 2 (x10)


Multi – LED Arrays

Specifications: Red Green Yellow
Light output typical 1.2mcd 1.1mcd 1.5mcd
at IF = 20mA
Forward voltage 2V 2.2V 2.1V
at IF = 20mA
Forward current (max) 30mA 30mA 30mA
Reverse voltage (max) 5V 5V 5V
Power dissipation (max) 120mW 105mW 105mW
Peak wavelength 665nm 565nm 585nm
2 Segment Quantity x 2 0 x 1
3 Segment Quantity 0 0 x 2


Pic Flasher Led List

Size * Colour * Wavelength * Mcd * Vf(V) * Degree * Qty
3mm * Yellow * 585 – 595mm * 2000-3000 * 1.9 – max 2.1 * 20 * 7
3mm * Diff. Blue * 460 – 470mm * 150 – 200 * 3.0 – 3.6 * 120 * 6
3mm * White Diff. Red * 620 – 630mm * 200 – 250 * 1.8 – 2.4 * 120 * 5
5mm * Wide Angle White * 600 – 1000 * 3.0 – 3.6 * 120 * 8
5mm * Orange * 600 – 615 * 3000 – 4000 * 1.8 – 2.4 * 20 * 4
5mm * White Diff. Yellow * 585 – 595 * 250 – 350 * 1.8 – 2.4 * 120 * 6
5mm * Wide Angle Yellow * 585 – 595 * 200 – 400 * 1.8 – 2.4 * 120 * 6


10 Segment Display

Colour Red Green
Max Forward Current
Per Segment 30mA 30mA
Per Package 200mA 160mA
Light Output at
IF = 20mA 4.0mcd 3.0mcd
Forward Voltage at
IF = 20mA 2.0V 2.2V
Peak inverse voltage 5V 5V
Quantity 1 (x10) 1 (x10)


Multi – LED Arrays

Specifications: Red Green Yellow
Light output typical 1.2mcd 1.1mcd 1.5mcd
at IF = 20mA
Forward voltage 2V 2.2V 2.1V
at IF = 20mA
Forward current (max) 30mA 30mA 30mA
Reverse voltage (max) 5V 5V 5V
Power dissipation (max) 120mW 105mW 105mW
Peak wavelength 665nm 565nm 585nm
2 Segment Quantity x 2 0 x 1
3 Segment Quantity 0 0 x 1

 

Please contact our Technical Support via email (see product documentation for address) for assistance. We can also send you a copy of the EPE article if you do not.

__________________
Support Team

Quasar Electronics - The Electronic Kits Superstore

www.quasarelectronics.com

 

Hooley Dooley!

We need the Forward Current (IF) for these leds as well.

... You do realise how much soldering you're going to have to do

__________________
What is a joule per second?

 

hi QuasarElectronics Support Team.

Its refreshing to see a support team that actually responds and so quickly.

Well done.!

__________________
Eric
"Good enough is Perfect"

PIC tutorials:
Gramo's: www.digital-diy.net/
Bill's: www.blueroomelectronics.com/

 

Absolutely! I thought at first that this was a spam but then I re-read the original post and realized it was legit.

This is impressive indeed.


Torben

 

We do not actively monitor every forum for support questions that our customers might be asking as the product documentation includes information on how to contact us by email.

So although the response might be a little belated it does however carry an important message which is that we are here to help. Any customer can contact us regarding their purchase and we will be happy to offer assistance.

__________________
Support Team

Quasar Electronics - The Electronic Kits Superstore

www.quasarelectronics.com

 

Thanks for the replies,

Managed to wing it through in the end! Man did I solder a lot?!?

I did initially contact Quasar but was pointed to generic info pages of "if you want to wire an LED do it this way....", and "If you have 10, wire them this way...."
It was a bit generic really as I could not find anyone that had done a similar project and explained the workings. What I was after was the personal coach to help......
But alas I learned in the end (with a few solder burns and burn-outs along the way) and am left with a really nice finsh.
Thanks again