Advantages of Optocoupler | disadvantages of Optocoupler
This page covers advantages and disadvantages of Optocoupler. It mentions Optocoupler advantages or benefits and Optocoupler disadvantages or drawbacks.
What is Optocoupler?
Introduction:
It consists of a pair of infrared LED and phototransistor.
When signal is applied to infrared LED, it turns ON and consecutively light falls on phototransistor.
As a result, phototransistor starts conducting.
Here no electric connection between LED and phototransistor of optocoupler.
• The figure-2 depicts triggering circuit which uses optocoupler.
In this circuit, triggering pulses are given to LED of optocoupler.
• Optocouplers are used for various applications which include inverters,
SMPS, choppers, AC motor drives etc.
Benefits or advantages of Optocoupler
Following are the benefits or advantages of Optocoupler:
➨It offers very good response at lower frequencies.
➨Compact and cheaper optocoupler devices are available.
Drawbacks or disadvantages of Optocoupler
Following are the drawbacks or disadvantages of Optocoupler:
➨Optocoupler needs external biasing voltage for its operation.
➨Higher frequency response is poor.
Advantages and Disadvantages of other wireless technologies
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Optical Circulator
Optical Amplifier
Optical Filter
Optical Coupler
Optical MUX DEMUX
Optical Equalizer
Optical Switch
Wavelength converter
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