6N138SV

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Optoisolators are used to Physically and electrically isolate electric circuits, while allowing for the passage of information by means of light. 6N138SV optoisolators are transistor photovoltaic output optoisolators, meaning that they consist of a pair of semiconductor devices—an optical semiconductor and an electrical semiconductor—which are connected by an optically transparent medium, typically an infrared LED. The light emitted by the LED is detected and converted to electricity by the electrical semiconductor to effectively electrically isolate the two circuits.

6N138SV optoisolators have several applications. They can be used in servomechanism controllers to control the speed of a motor, in three-phase voltage detection and monitoring systems for high power devices, in frequency- and pulse-width modulated systems, and in audio systems for noise reduction. In addition, they can be used in shutdown circuits for high voltage and current circuits to automatically cut off power supply when malfunctions occur. They can also be used in d.c. current relays and in lamp driver circuits for AC/DC sinusoidal waveforms.

As for its working principle, 6N138SV optoisolators use an LED to convert an electrical input signal into an optical output. When the device is triggered, the LED emits light which is then detected by the electrical semiconductor. The output of the semiconductor is then used to control a load or other device that is connected to the isolated circuits.

To further understand how 6N138SV optoisolators work, let us look at an example. Let us say that we have a circuit with two separate circuits, one which contains the LED and one which contains a load. When a voltage is applied to the controlling input of the optoisolator, the LED will turn on and emit light. The light will be detected by the semiconductor in the separate circuit, and the output of the semiconductor will control the load accordingly.

6N138SV optoisolators have a variety of uses, and are capable of providing both physical and electrical isolation between two circuits, while allowing for the passage of information through light. They can be used in a variety of applications, from motor controllers to audio systems for noise reduction, and have many advantages over traditional methods of isolation.

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