OPI1270-080

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Optoisolators are devices commonly used in electronic applications to isolate two different circuits from one another. They can be used to block signals, power, or data from one electrical circuit to another, preventing them from interfering with each other. The OPi1270-080 is a type of transistor photovoltaic output optoisolator, which means it uses a photo transistor and an LED to isolate two circuits. This article will discuss the application fields and working principle of the OPi1270-080.

Application of the OPi1270-080

The OPi1270-080 is used in a wide variety of applications. It can be used to isolate digital signals between integrated circuit (IC) logic and loads such as relays or motors. It can also be used to isolate analog signals, such as those from sensors, from logic circuits. Additionally, it can be used in inverters to isolate a DC to AC input from the AC output, preventing feedback and cross-talk between the two.

Working Principle of the OPi1270-080

The OPi1270-080 is composed of two main components: an infrared light-emitting diode (LED) and a phototransistor. The LED emits infrared light that is then detected by the phototransistor, which creates a circuit between the two components. The output of the phototransistor is then connected to the output device.

When the LED is inactive, no current passes through the phototransistor, so the output remains at ground potential. When power is applied to the LED, however, a current flows through the phototransistor and its output rises to a logic-high voltage. This voltage is then sent to the output device, effectively isolating the two circuits.

Conclusion

The OPi1270-080 is a type of transistor photovoltaic output optoisolator that uses an LED and phototransistor to isolate two circuits. This device is used in a variety of applications, including digital signal isolation, analog signal isolation, and inverters. Its working principle is based on applying power to the LED, which causes a current to flow through the phototransistor and its output rise to a logic-high voltage. This voltage is then sent to the output device, effectively isolating the two circuits.

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