Receiver for 50 khz optical transmitter


Posted on Apr 25, 2012

For maximum range, the receiver must be designed in the same manner as a radio receiver front end, since the received signals will be similar in both frequency component and in amplitude of the photodiode current. The major constraint on the receiver performance is signal to noise ratio, followed by e.m. shielding, stability, bias points, parts layout, etc. These become significant details in the final design. This receiver circuit consists of a L14G2 detector, two stages of gain, and a FM demodulator which is the tachometer circuit, modified to operate up to 100 kHz.


Receiver for 50 khz optical transmitter
Click here to download the full size of the above Circuit.

Better sensitivity can be obtained using more stages of stabilized gain with AGC, lower cost and sensitivity may be obtained by using an H23A1 emitter-detector pair and/or by eliminating amplifier stages. For some applications, additional filtering of the output voltage may be desired.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Strobo triggering schematics
Accentuated beat metronome
USB Powered Stereo Computer Speaker
avr Control 5V buzzer using mcu and a single 5 V power supply
Motion Control Sensor Interface
Adventures with a Single Board Computer
development and evaluation for FPGA based systems
2001 chevy s10: indicator light headlight switchfuserelay bulbs
A Unipolar Stepper Motor Driver
Ultrasonic sensors apply to parking sensor system
HP 200LX USB / Power Supply dongle
With full power amplifier 01
A simple remote control switch circuit



Top