Infra Red (IR) LED Flood Light Circuit Diagram
The adjoining design shows a simple IR flood light circuit diagram for IR illumination applications.
The 4049 section is the basic voltage doubler circuit which effectively boosts the 9 V supply to a level of around 15 V which further becomes the suypply voltage for the next 555 pulse modulator section.
The voltage is suitably pulsed as per the settings of P1 and P2 for driving the associated IR LEDs.
The main feature of this circuit is that it utilizes just a single PP3 9 volt battery and yet is able to provide lights (IR) at dazzling levels.
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ReplyDeleteHi Swagatam,
ReplyDeleteThis above circuit is very tempting and has drawn my attention to consider doing this. What will be the brightness of the above LEDs and can I use normal LEDs instead of IR LEDs and what is the difference between using IR LEDs and the normal LEDs. Also how many LEDs are connected in the above circuit and what is the maximum LEDs that can be had with the above given circuit.
Regards
Nagaraj
Hi Nagaraj,
DeleteThis circuit is specially designed for operating IR LEDs, so cannot be used with normal LEDs.
Regards.
Hi Swagatam,
ReplyDeleteOk then. I just want to get clarified as to whether this LEDs are brighter than the ordinary LEDs and how many LEDs have you connected in the above circuit and how many LEDs can be had maximum.
Regards
Nagaraj
Hi Nagaraj,
DeleteIR LEDs don't produce any light, they are just like our TV remote control LED.
I have connected 7 in one string, many strings as per requirements may be connected.
Regards.