Led Lighting project

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venox
Posts: 1
Joined: Sat Apr 05, 2008 7:32 am

Led Lighting project

Post by venox » Sat Apr 05, 2008 7:41 am

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 permenantly lit leds. I bought a Versatile Pic Flasher project 3169 from Quasar Electrics (http://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 competant 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 permenantly 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

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