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

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When you already heard about Optocoupler devices, you may be heard also about CTR. CTR stands for current transfer ratio.
Current transfer ratio is comparable to BJT’s HFE or beta (β). This is the ratio of the optocoupler’s collector current
Continue readingOpto coupler CTR explanation is not well elaborated by other authors and before I was also having hard time of
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