Step by step build photoresistor LDR NPN BJT 2N3904 light controlled switch circuit by electronzap
Автор: electronzap
Загружено: 2018-03-01
Просмотров: 3311
Описание:
I do a step by step build of a 2N3904 NPN Bipolar Junction Transistor (BJT) switch that is controlled by a voltage divider made up of a fixed resistor and a photoresistor/light dependent resistor (LDR). This transistor switch circuit is used to turn a LED on and off depending on how much light is falling on the LDR.
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