Ducati Sporting Club UK > General > Idle Chat > Techy, electrical type question - IR transmitter

[domski]

Originally Posted by antonye

And this is the circuit you need ... I'm sure you'll be able to figure it out

http://www.montage.co.nz/led/images/LED_CircuitPlan.gif

Ps: a = anode, k = cathode; check the spec sheet of the IR device to see which is which!

The problem with IR is that you can't see if it works - obviously, normal LEDs are much easier!!

Thanks Ant - You're a star mate.

I did do this kind of stuff at school in technology (or whatever it was called) so I'm not a total muppet, but it was a looooooooooooooooooong time ago.

Cheers

[Felix]

I have an AIM beacon and it uses 6 LEDs arranged in a 20 mm circle. It is powered by 8 AA batteries, or a 12V DC adaptor. It also has a low and high power switch.

I would imagine you'd want an LED with the smallest possible lens angle, maybe 15 deg, to get a well focused beam. It also increases the distance it can reach.

[TP]

Originally Posted by Felix

I have an AIM beacon and it uses 6 LEDs arranged in a 20 mm circle. It is powered by 8 AA batteries, or a 12V DC adaptor. It also has a low and high power switch.

I would imagine you'd want an LED with the smallest possible lens angle, maybe 15 deg, to get a well focused beam. It also increases the distance it can reach.

Nerd!

[domski]

Originally Posted by TP

Nerd!

You've been on the juice haven't you!!

[TP]

Originally Posted by domski

You've been on the juice haven't you!!

Yes

[antonye]

Woohoo! First time I've used my Electronics degree for something useful since I graduated 10 years ago