Pulse generation by interrupting a light beam


Posted on May 5, 2012

This circuit puts out a pulse when an object on the conveyor belt blocks the light source. The light source keeps the phototran-sistor turned on. This produces a high-logic-level voltage at the Schmitt-trigger inverter and a TTL-compatible low logic level at pin 5 of the monostable


Pulse generation by interrupting a light beam
Click here to download the full size of the above Circuit.

When an object blocks the light, TIL81 turns off the Schmitt-trigger inverter to triggers the one shot.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

807 and 1625 Valves as power amplifiers
Solar power related schematics
power Switching Between Two Voltage Supplies
pippin qrp transmitter
converter lhc20 5ka 18v
converter lhc4 6 8ka 08v
Protection For Telephone Line
Light control principle circuit rooster crows
Flooding rats Electronic cat
Low-noise pre-equalizer circuit



Top