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Technical ArticleWhat is a photodiode?Time：2019-03-16 14:20:04 Click：
The big difference between ordinary diode and photodiode, that is photodiode is able to convert photosignal into electric signal;
Besides, three characteristics of the photodiode:
1)As a photoswich; 2)To receive photosignal; 3)Be able to convert infrared light into visible light.
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