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Infrared audio transmitter and reciever

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nikifena

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infrared audio transmitter

I try to search via g00gle, but I don't find nothing good
can someone to help me with circuit?
any ideas ??

Thanks :)
 

JJFORTY

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stereo infrared audio transmitter circuit

I did an optical communication link project for my sencond year at Uni using PWM modulation 5v pk-pk. U can easly stick a mic at the transmiter and a power amp at the receiver for the speaker to transmit and receive audio signals well so I think...

Let me know if you want the diagrams!..

Happy New Year !!! erkkkk i'm drunk,,, heheheheh
 

Borber

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circuits for infrared audio

Above circuit is surely not IR receiver. It is some ultrasonic circuit.
This old circuits might help.
 

JJFORTY

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ir audio transmitter circuit

Hi..

I developed this project at college a few years back.. I hope it is useful for anybody out there.. it is based on (PWM) Op-amps and a comparator. Freq 100hz - 10Khz but can be altered using different combinations for LP/HP Filters. Clean and undistorted auido transmission.
 

fuat_09

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post16/ultrasonic/circuit

very simple circuits
 

cae20452

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infra red audio transmitter

tsh 511(stereo-RX) - tsh 512(stereo-TX) (infrared audio) from stmicroelectronic .
 

josesitocg

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infrared audio transmitter stereo circuit

im developing a Infrared FM transmission project with the particularity that i have to modulate (FM) a wav file in matlab getting it out from the soundcard to a infrared transmission circuit so that i will demodulate the signal in a receiver circuit without using the computer.

I have reviewed many circuits and im kinda lost in this topics so PLEASE HELP ME
 

Eugen_E

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infrared audio transmitter circuit

In the receiver, for FM demodulation you can use the CD4046 PLL circuit, fed with the signal from the IR sensor.
 

rushirajdhar

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cd4046-pll-circuit

hey may i try mini project as this ckt

just tell me aproximate cost
 

ypnayak

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fm infrared audio

i am unable to oper receiver .doc
 

prince_iut

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infrared audio transmitter

specify the values of equipments
 

akvii

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this might help u a bit..but u have to modify the tx circuit according to ur requirment
 

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