The 6N137 optocoupler is a high-speed optocoupler for single channel. It has temperature, current and voltage compensation functions and high input and output isolation. It has the characteristics of one-way transmission of information, pass-band bandwidth, small parasitic feedback, strong noise cancellation ability, and good anti-electromagnetic interference performance.
A. In switching circuits, it is often required to have good electrical isolation between the control circuit and the switch. It is difficult to achieve for ordinary electronic switches, but it is easy to achieve with it, so 6n137 has electrical isolation. effect.
B. It is used in bistable output circuits. Since the light-emitting diodes can be connected in series to the emitter circuits of two emitters, it can effectively solve the problem of output and load isolation.
C. Constitute various logic circuits. Since its anti-interference performance and isolation performance are better than transistors, the logic circuits composed of it are more reliable.
D. Applied to digital circuits, it can amplify pulse signals. E. It is used in high-voltage control, replacing transformers, replacing contact relays and used in A/D circuits and other occasions. Therefore, 6n137 has important functions such as anti-interference, electrical isolation, and signal amplification.