[Laser] WB9AJZ laser RX problems
robotics
[email protected]
Sun, 8 Dec 2002 16:38:54 +0530
Hi Wendell
There are some corrections in the design I can suggest that will help.
Use high collector resistance in the first stage ~100K anf not 10K as shown
in the design.
The next stage can be cheap BC548B/C NPN transistors 2 numbers with base
input as 100K collector 10K, base 10K and collector 1K.
After this stage one can use LM339 comparator IC with hysteresis.
For modulated code, demodulator is needed.
If any one needs further help then write to me.
Shyam
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Shyam Sunder Tiwari
Managing Director
Sensors Technology Private Limited
AM-51, Deen Dayal Nagar
Gwalior, MP 474020, India
Phone: +91-751-2470680 / 545715
Fax:+91-751-545716
Email: [email protected]
http://sensorstechnology.tripod.com/
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