Optocouplers / Photocouplers
Optocoupler, photocoupler is an electronic component that transfers electrical signals between two isolated circuits by using light.[1] Opto-isolators prevent high voltages from affecting the system receiving the signal.[2] Commercially available opto-isolators withstand input-to-output voltages up to 10 kV[3] and voltage transients with speeds up to 25 kV/μs. A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals. Optocoupler, photocouplers are available at Avaq Semiconductor Co., Limited.
Types of Optoelectronics
Transistor Output Optocouplers Hi-Iso Photo 4-Ch
Transistor Output Optocoupler, 1-Element, 5000V Isolation, SURFACE MOUNT, PLASTIC PACKAGE-4
Optically Isolated Amplifiers Precision Iso-Amp
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FAQ
- What are Optocouplers (Photocouplers)
- Optocouplers, also known as photocouplers or optoisolators, are electronic components that consist of a light-emitting diode (LED) and a photodetector (usually a phototransistor or photodarlington) packaged in a single housing. They are used to electrically isolate two circuits while allowing them to communicate optically.
- How do Optocouplers work?
- Optocouplers work by using light to transmit signals between two isolated circuits. When a voltage is applied to the LED input side of the optocoupler, the LED emits light. This light is detected by the photodetector on the output side, which then generates a corresponding electrical signal.
- How do I choose the right Optocoupler for my application?
- Consider factors like input and output voltage requirements, isolation voltage, speed, and compatibility with the signals you need to transmit. Consult datasheets and manufacturer resources for guidance.