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Category: Optocoupler

May 4, 2015 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

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May 4, 2015 electronicsbeliever

Disadvantage of using Optocoupler with Low CTR for Switch Operation

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

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April 30, 2015 electronicsbeliever

Optocoupler Device CTR and Circuit CTR Explained

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

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April 30, 2015 electronicsbeliever

Optocoupler Operation as Switch Tutorials with Design Sample

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

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April 29, 2015 electronicsbeliever

How to Determine Optocoupler Operation Saturation or Linear

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

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April 28, 2015 electronicsbeliever

Optocoupler Circuit Design and Detailed Analysis

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

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April 28, 2015 electronicsbeliever

How to Bias Optocoupler: The Complete Course

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

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December 20, 2014 electronicsbeliever

Factors Affecting Current Transfer Ratio of Optocoupler

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

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December 1, 2014 electronicsbeliever

Opto Coupler CTR Explanation

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

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November 22, 2014 electronicsbeliever

How to Analyze Optocoupler in Feedback System

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

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