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Transistor Cut off, Saturation & Active Regions
The below Fig. (i) shows CE transistor circuit while Fig.(ii) shows the output characteristcs along with the d.c. load line. ... -
Transistor Load Line Analysis
In the transistor circuit analysis, it is generally required to determine the collector current for various collector-emitter voltages. One of ... -
Transistor as an Amplifier in Common Emitter
The below Fig. shows the common emitter npn amplifier circuit. Note that a battery VBB is connected in the input circuit ... -
Shockley Diode Working Principle
Named after its inventor, a Shockley diode is a PNPN device having two terminals as shown in Fig. (i). This device ... -
Optoisolator Working Principle
An optoisolator (also called optocoupler) is a device that uses light to couple a signal from its input (a photoemitter ... -
Applications of Photo diodes
There are a large number of applications of photo- diodes. However, we shall give two applications of photo-diodes by way ... -
Characteristics of Photo diode
There are two important characteristics of photo- diode. (i) Reverse current-Illumination curve. The below Fig shows the graph between reverse ... -
Seven Segment Display Working Principle
LEDs are often grouped to form seven-segment display. The below Fig. shows the front of a seven segment display. It ... -
How a Multi Color LED Works ?
A LED that emits one colour when forward biased and another colour when reverse biased is called a multicolour LED. ... -
Diodes Questions & Answers
1. Explain what is a pn junction? The contact surface between the layers of p-type and n-type semiconductor pieces plated ...
Author: Bharadwaj
