Pulse-Frequency Modulated Receiver

Posted on Jan 17, 2013

This receiver uses an IR-sensitive phototransistor (Clairex, HP, etc.) mounted in a light-tight enclosur

Pulse-Frequency Modulated Receiver
Click here to download the full size of the above Circuit.

e with an aperture for the incoming IR beam. An optical system can be used with this receiver for increased range. A 741 amplifies the pulsed IR signal and a 565 PLL FM demodulator recovers the audio, which drives an LM386 audio amplifier and speaker.

Leave Comment

characters left:

New Circuits



Popular Circuits

Arduino-based AVR High Voltage Programmer
Adaptor for 8 and 28 pin AVR
Phone Message Flasher
usb 5v to 12v dc dc step up converter
sensors and ldr
16 Step Sequencer
50 impedance RF2320 linear amplification circuit diagram
Six a start and stop intermittent cycle control circuits