IR Infrared receiver circuit using IC 555 & TSOP1738

Share on FacebookShare on Google+Tweet about this on TwitterShare on RedditShare on StumbleUponPin on Pinterest

Infrared-IR-receiver-circuit-using-IC555- TSOP1738

The Infra Red signals are widely used in wide range of remote control applications so it is worthy to know about the transmission and receiving the IR signals.Here the above circuit was a simple Infrared receiver circuit constructed using IC 555 and TSOP1738.The TSOP1738 was nothing but a simple IR detector used widely and here it was used for the same detecting purpose and then the signal was fed into the IC 555 which was wired as monostable multivibrator.Lets move in to the working of the above circuit.

WORKING OF INFRARED RECEIVER CIRCUIT:

In this above circuit the TSOP1738 forms the main constituent of this circuit and this was designed to detect the IR signals from any source.This was used to detect the signals of the range of 38 KHz and thus named as “TSOP1738” and last two numbers of each of this TSOP series was named for their receiving frequency range.The pin configuration was given below.

Pin-diagram-Configuration- TSOP1738

The Vs was connected to 5v power supply and the GND to ground respectively.And the output was taken from the OUT pin.The TSOP gives high signal as output in the absence of detection of any IR signals and low output whenever IR signals incident on TSOP1738.This logic was used in the above receiver circuit to to detect the Infra red signals.

Since the IC 555 was wired as monostable multivibrator the negative trigger to the pin 2 of the 555 IC will result in a high output at the 3 pin of the IC 555 thus indicating that the detection of Infra Red signals.But in the absence of IR signals the TSOP will give a high positive trigger thus there will be no output obtained from the 3rd pin of the IC 555.By this way the receiver circuit using TSOP1738 and IC 555 works.

Share on FacebookShare on Google+Tweet about this on TwitterShare on RedditShare on StumbleUponPin on Pinterest

Related Designs and Schematics

The following two tabs change content below.

Frank Donald

Junior Network Engineer at Tata Communications
Frank Donald is an Electronics and Communication Engineer who is very passionate about his subject. Reading, Surfing and Blogging are the things he loves.

Ask your query

17 Comments on "IR Infrared receiver circuit using IC 555 & TSOP1738"

Notify of
avatar
Sort by:   newest | oldest | most voted
Ced
Guest

ok, i will try that tyhen and let u know the outcome. Thanks again

Ced
Guest

thanks for the suggestion but i am not sure what that means exactly. I would prefer more details or even a schematic for your suggestion. However, in the meantime i am going to try what i think u r saying. BTW i am not a pro at electronics i only try to follow the schematics of circuits i am interested in(cause i love to make things and see them work), but i have little to no understanding how they work.

Ced
Guest

i made this circuit using a ir receiver from a toy helicopter. It works for the most part, but there are times when the buzzer keeps going off without being triggered by remote. Any idea as to why this is taking place and how i can solve it?

jenno
Guest

hello,
i am trying to convert IR-RF-IR for a long range IR remote control without using microcontroller, is that possible? could you please help me in this?
Thanks!!

Foobar
Guest

Hello!

Could you please tell me what is the max voltage of the 1 microfarad capacitor and the other capacitor? Will it not be possible that the voltage from the capacitor will flow backward to the TSOP’s output pin and cause damage?

I just need some clarifications on those issues.

Thanks!

henning h
Guest

can i use it to flash an led in the same frequency as the remote transmits

Aaron DTB
Guest

Good day! does this circuit function as toggle switch?
meaning, the second time it detects IR signal, the output will turn low.

Frank Donald
Guest

No it wont work that way Aaron it was just a combination of IR sensor TSOP and monostable multivibrator. Whenever there is a negative trigger the output will be high…You cant use it as a toggle switch but here is a circuit which might work as you expected Remote control of electrical appliances The receiver part of the above project might help your cause

Frank Donald
Guest

Good to hear this. Keep visiting us

treflip
Guest

Thanks. This helped with the keyesIR proximity switch!

Frank Donald
Guest

Glad to hear it Cheers.

wpDiscuz