Transistor Collector Characteristic Curves
Using a circuit like that shown in Figure (a), a set of collector characteristic curves can be generated that show how
Why Silicon is preferred over Germanium ?
As we all know, both Silicon and Germanium are semiconductor devices. But the present trend is to use Silicon instead
How to Test a Transistor using Multimeter
An ohmmeter can be used to check the state of a transistor i.e., whether the transistor is good or not.
How to Identify the Transistor Terminals
There are three leads in a transistor viz. collector, emitter and base. When a transistor is to be connected in
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
