Optocoupler – ElectronicsBeliever

Common Application of Optocoupler in Today’s Electronic Circuits

The most common application of Optocoupler is signal isolation. It provides complete isolation because its input side is not electrically

In optocoupler, CTR stands for current transfer ratio. This is comparable to the current gain beta in BJT. This is

When you already heard about Optocoupler devices, you may be heard also about CTR. CTR stands for current transfer ratio.

The optocoupler operation as switch is similar on how to configure BJT as switch. For a BJT to operate as

There are several ways on how to determine Optocoupler operation. The old school method is to build an actual circuit

Actually, Optocoupler circuit design is not that difficult as some thought. It’s just like you are designing a BJT circuit.

How to bias optocoupler is even simpler than bipolar junction transistors. However such device is not well discussed in the universities

Current transfer ratio is comparable to BJT’s HFE or beta (β). This is the ratio of the optocoupler’s collector current

Opto coupler CTR explanation is not well elaborated by other authors and before I was also having hard time of

One of the usual applications of optocoupler is to provide isolation between two ground reference. That is why it is