Published:2011/7/3 6:42:00 Author:Robert | Keyword: Darlington, Phototransistor, Optical Control, Switch, Application | From:SeekIC
The picture shows the darlington type phototransistor optical control switch application circuit.
Because of using the darlington type phototransistor as the sensor element, it is sensitive to weak light. It is adequate for the detection of reflected light signal.
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