An Introduction to Transistor
A transistor is a three-terminal semiconductor device with E (Emitter), B (Base), and C terminals (Collector). The transistor may operate in three distinct regions: active, cutoff, and saturation. When operating in the cut-off zone, transistors are turned off, and when working in the saturation region, they are switched on. While in the active area, transistors operate as amplifiers. The primary function of a transistor as an amplifier is to boost the input signal while causing little change. To know how a transistor functions as an amplifier, carry on reading.
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How does Transistor Function as an Amplifier?
An amplifier circuit is a circuit that is used to amplify a signal. The amplifier's input is a voltage or current, and the output is an amplifier input signal. A transistor amplifier is an amplifier circuit that employs a transistor rather than other transistors. Transistor amplifier circuits are used mostly in audio, radio, and optical fiber transmission, among other things.
There are three types of transistor configurations: CB (common base), CC (common collector), and CE (common emitter). However, similar emitter configurations are often employed in applications like audio amplifiers. The gain in CB configuration is 1, while the gain in CC configuration is nearly equal to 1.
For example, consider a 0.1v change in the applied input voltage, which results in a 1mA change in the emitter current. This change in emitter current will, of course, cause a change in collector current, which will likewise be 1mA. For more examples and explanations, you can always check out BookMyEssay’s comprehensive Transistor Amplifiers homework help service and carry on.
A good transistor's properties primarily include high gain, high slew rate, high bandwidth, high linearity, high efficiency, high i/p impedance, and high stability, among others.