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
MOSFET Output Optocouplers 1Ch 10mA 700mW
Optocoupler Drive Open Collector 1-CH 30V 1500V 8-Pin PDIP SMT T/R
400mA Gate Driver Optical Coupling 4000Vrms 1 Channel 14-SMT
Small Outline Package with 16-Pins
3.3 V High-Speed Photocoupler with 8-Pin SSOP (SO-8) Package
Support is limited to customers who have already adopted these products.
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.