Photoelectric amplification circuit used in NC wire-cut machine

Published:2011/4/12 22:54:00 Author:Nicole | Keyword: NC wire-cut machine, photoelectric amplification | From:SeekIC

Photosensitive diode and BG1 form photoelectric conversion, BG2 and BG3 form Schmitt trigger, BG4 is inverter. When it is illumination, BG1 base potential rises, BG1 is off, then BG2 is conduction, BG2 is off, then BG4 is conduction, outputing positive singal.



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