I recently started to work on encoder sensors and circuits.
I found one optical encoder sensor from vishay electronics that suits my requirement,
I found a circuit diagram online and it works like a charm ! but i have following questions about its working:
1 : Why do we need MOSFETS on the output terminals of sensor ? shouldn't we directlyget quadrature output without MOSFETS at points OUT1 and OUT2?
2 : Can we use BJT like BC547 instead of CJ2102 ? Wil it work ?