Unlike photodiodes and photovoltaic cells that have only two leads, a phototransistor's base connection allows a feedback circuit to control the device's bias point. Diverting current from the base ...

Eagle2-PhotoTransistor For this assignment, you'll make a circuit that can detect when you wave your finger over it. We'll use a matched LED/phototransistor pair in a single part. When you put a ...

In this paper, a novel Infrared phototransistor (IR PT) design based on Ge-gate with doping engineering aspect (DE) is proposed. Comprehensive investigation based on accurate numerical modeling of the ...