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Infrared Circuits
IR Circuits:  #'s - A         B - H         I - K         L - Q         R - S         T - Z


Last Updated on:
Tuesday, October 24, 2017 02:55 PM

 

Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Circuits Designed by Dave Johnson, P.E. :

Infrared Reflected Light SwitchDrawing only 30uA from a 3v supply, this circuit will detect a human finger with a range of about 1 inch.  The sensor uses an inexpensive infrared LED and a matching photo diode. . . Circuit by David Johnson P.E.-July, 2006

Infrared Remote Extender CircuitThis circuit is designed to be placed directly in front of a standard TV or VCR remote.  The exiting light pulses produced by the circuit match the pulses from the remote but are about 10 times more powerful . . . Hobby Circuit designed by David Johnson P.E.-June, 2000

Infrared Reflected Light SwitchDrawing only 30uA from a 3v supply, this circuit will detect a human finger with a range of about 1 inch.  The sensor uses an inexpensive infrared LED and a matching photo diode. . . Circuit by David Johnson P.E.-July, 2006

Infrared Remote Extender CircuitThis circuit is designed to be placed directly in front of a standard TV or VCR remote.  The exiting light pulses produced by the circuit match the pulses from the remote but are about 10 times more powerful . . . Hobby Circuit designed by David Johnson P.E.-June, 2000

Infrared Safety SwitchUsing a slotted optical sensor, this circuit can be used as a replacement for a large mushroom pushbutton safety switch. . . Circuit by David Johnson P.E.-July, 2006

Infrared TV/VCR Remote BoosterThis circuit will boost the signal from any infrared TV or VCR remote, extending the range by a factor of 3X.. . . Circuit by Dave Johnson P.E.-October, 2005

IR TV/VCR Remote BoosterThis circuit will boost the signal from any infrared TV or VCR remote, extending the range by a factor of 3X. . . . Hobby Circuit designed by Dave Johnson P.E.-October, 2005

Implementing Infrared Object Detection -  Infrared based electronic circuit diagrams / circuit schematics

Improved Infrared Receiver with status led -  This is a general purpose serial port infrared receiver.  With the help of appropriate software  (see below) you can control different functions of your pc from a distance.  For example you can control your home cinema settings  (volume, play, pause, stop etc) , your winamp etc __ Contact: IQ Technologies

Improving Selectivity with IF AGC -  After installing narrower ceramic IF filters in my Sony ST-S555ES tuner, adjacent-channel selectivity was 32 dB at the standard 45 dBf test level. But it fell to just 22.5 dB at 75 dBf. The problem was evident for signals on the air as well as with instruments. __ Designed by Brian Beezley K6STI

Impulse Modulated Infrared Transmitter -  This infrared transmitter can be used with this infrared receiver.  This transmitter uses.  The modulated signal is produced by comparison of an audio signal with a triangle signal of high frequency using a comparator IC.  An appropriate triangle signal generator must have the offset equal with half of the 5V power supply voltage __ Designed by Popescu Marian

Inexpensive infrared reflectometer -  Infrared based electronic circuit diagrams / circuit schematics

Infa-Red Remote Control -  A simple one-channel remote control.  It will trigger a relay upon press of a button.   __ Designed by Aaron Cake

Infra Red Link -  A basic Infra Red Link for audio communication for distances upto 3 metres. __ Designed by Milan Markovic

Infra Red Remote Control Extender -  This circuit is used to relay signals from an Infra Red remote control in one room to an IR controlled appliance in another room.   __ Designed by Andy Collison

Infra Red Remote Transponder -  Remote-transponder, which lets send signals from a small receiver into closed  (opaque door) cabinets, and around corners, etc.  Anyways, the main problem is just stray environmental noise with any slowly changing amplitude modulated IR signal  (lots of 60 Hz noise, and sunlight noise) .  Most IR remotes work around a 40KHz carrier, so that they can just pulse this digitally, and just bandpass filter it at the receiving end.  This boosts the range of unfocused IR remotes to tens of feet  (around 20-30 feet) .  Adding two IR LEDs helps a lot, by sending out more IR signals. __ Designed by Shishin Yamada

Infra Red Switch -  ASCII Drawing __ Contact: IQ Technologies

Infra Red Switch -  This is a single channel  (on / off) universal switch that may be used with any Infra Red remote control using 36-38kHz.  (This is a very common remote handset frequency) . In place of IR1 a TSOP1738 receiver may be used. __ Designed by Radio LocMan

Infra Red Switch -  This is a single channel  (on / off) universal switch that may be used with any Infra Red remote control using 36-38kHz.   (This is a very common remote handset frequency) .  In place of IR1 a TSOP1738 receiver may be used.     __ Designed by Andy Collison

Infra Red TV Extender -  After building both my Mark 1 and Mark 2 circuits, Mr Bocquillon has made an improved version, which is working very well.  His design is based is based on an active filter, centered at 37KHz modulating frequency and uses a photodiode and op-amp from Texas Instruments __ Designed by Guy Bocquillon 21-3-07

Infra Remote Control Tester -  A simple IR receiver to facilitate in testing of Infra Red Remote Control handsets.   __ Designed by Andy Collison

Infrared Alarm Barrier -  This infrared alarm barrier can be used to detect persons passing through doorways, corridors and small gates.  The transmitter emits a beam of infrared light which is invisible to the human eye.  The buzzer at the output of the receiver is activated when the light beam is interrupted by a person passing through it.  Infrared __ Designed by Popescu Marian

Infrared Audio Transmitter-Receiver -  Schematic only __ Designed by va3iul

Infrared beam barrier / proximity Detector -  This circuit can be used as an Infrared beam barrier as well as a proximity detector.  The circuit uses the very popular Sharp IR module  (Vishay module can also be used) .  The pin nos.  shown in the circuit are for the Sharp & VIshay modules.  For other modules please refer to their respective datasheets.  The receiver consists of a 555 timer IC working as an oscillator at __ Contact: http://www.tronicszone.com

Infrared beam barrier/ proximity sensor -  his circuit can be used as an Infrared beam barrier as well as a proximity detector.  The circuit uses the very popular Sharp IR module.  The pin nos.  shown in the circuit are for the Sharp module only.  For other modules please refer to their respective datasheets __ Designed by Radioland.nt.au

Infrared Beam Break Detector -  Application An infrared detector that sounds a buzzer when an IR beam is broken, meaning the IR signal is lost.  A pulsed IR signal generator is necessary, but not included in this post.  This project would be ideal for doorways or hallways to alert when someone enters or exits an area.  Description The IR sensor responds to __ Designed by Popescu Marian

Infrared beam door alarm -  No circuit description, schematic only__ CdS Electronic

Infrared Body Sensing -  Infrared based electronic circuit diagrams / circuit schematics __ Designed by Dr.Godfried-Willem Raes

Infrared Bug -  This circuit can be used to detect the presence of modulated infrared signals in its vicinity from any electronic source, for instance, an IR handheld remote controller.  It can also be...__ Electronics Projects for You

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Infrared Circuits
IR Circuits:  #'s - A         B - H         I - K         L - Q         R - S         T - Z

 


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