TrackIR setup 6

101

00:46:23

Hi,
For IR tracking, is this circuit correct for overloading the leds?
Thanks for your ideas/help!

published 9 years ago

BillyT

9 years ago

Depends on the type of Leds devices are going to be used. From the frequency the 555 is running it is not a visual device, so it would pay to look at the devices specifications. By the way, according to ElectroDroid, the official values are; standard red 1.7v @ 10mA, bright red 2.0v @ 10mA, super bright red 1.75v @ 20mA.

pougnagna

9 years ago

Thanks BillyT! The choosen IR leds are 20 or 100 mA, depending of the model. According to the datasheet, they are able to be driven with highest I(f) for short period, so I guess it's ok (30 instead of 20 mA in this specific circuit).

BillyT

9 years ago

You can but only try it out.

rich11292000

9 years ago

Check temp by touch, here is Hurz ir transponder. Check the mA on that. http://everycircuit.com/circuit/6732415080857600

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.