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Characteristics of Photo diode

S Bharadwaj Reddy
There  are  two  important  characteristics  of  photo- diode. (i)   Reverse current-Illumination curve. The below Fig shows the graph between reverse current (IR) and illumination (E) of a photo-diode.  The reverse

Photodiode as Variable Resistance Device

S Bharadwaj Reddy
The photodiode is a device that operates in reverse bias, as shown in Figure. where Ia is the reverse light current. The photodiode has a small transparent window that allows light

Difference between ideal diode & conventional diode

S Bharadwaj Reddy
An ideal diode is a diode that acts like a perfect conductor when voltage is applied forward biased and like a perfect insulator when voltage is applied reverse biased. So

VI Characteristic of a Diode

S Bharadwaj Reddy
As we know, forward bias produces current through a diode and reverse bias essentially prevents current, except for a negligible reverse current. Reverse bias prevents current as long as the reverse-bias

Forward Bias & Reverse Bias of a Diode

S Bharadwaj Reddy
A diode is made from a small piece of semiconductor material, usually silicon, in which half is doped as a p region and half is doped as an n region with a

How a Gate Works ?

S Bharadwaj Reddy
On the previous article, we saw how the output of a gate goes HIGH or LOW according to the voltage level on the inputs. But how is a gate used in a

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