An example of PhotoDiode Amplifier designed with Op Amp, P-channel MOSFET transistor, Zener Diode and potentiometer is explained in this analog circuit video. Photodiode receives and converts the optical signal into small electric reverse bias current on the order of 10s of nano Amp up to few 100 micro Amp. The amplifier on one side provides this reverse bias current to the photodiode and also generates and amplified and inverted copy of that current as its output source current. Few choices of enhancement mode PMOS Transistors from Microchip Corp., Rohm and Vishay Semiconductor are presented as well.
Негізгі бет Ғылым және технология PhotoDiode Amplifier with Op Amp and MOSFET Explained
Пікірлер: 15