Transistor As An Amplifier
1. How may types of Configuration available in Transistor?
In transistor we have three types of configuration as list shown below:
- Common Emitter Configuration.
- Common Base Configuration.
- Common Collector Configuration.
2. Why we used common-emitter configuration for the Amplification?
Common emitter circuit configuration is used by most amplifiers because it provides both voltage and current gain, which leads to a higher power gain than common base emitter design. Its increased input resistance, which is of the order of load resistance, is another factor to take into account.
3. Mention the different types of region in which transistor works?
Different Types of Region are given Below:
- Saturation region
- Cutoff region
- Active region
4. In which region transistor act as amplifier
We have 3 different types of regions which is for the amplification behaviour but we use the Active region.
Transistor As An Amplifier
Although transistors can be used for many other things, amplification is the main application for them. The PN junctions of the transistor must be appropriately biased by external voltages for the transistor to function as an amplifier. The transistor operates in three distinct modes: Active, Saturation, and Cutoff, depending on the external bias voltage polarities that are applied. An amplifier is only functional in the active mode of the transistor. Transistors can be employed as amplifiers in addition to switches.
A three-layer semiconductor device with amplifier capabilities is called a transistor. The transistor can regulate a greater signal flow between the collector and emitter by applying a small signal to the base. This makes transistors valuable in electronic circuits as amplifiers for music, radio signals, and more. The development of modern technology has been significantly influenced by the transistor’s capacity to amplify signals. In essence, transistors are amplifiers used for amplification. “Amplification” is the process of increasing a weak signal’s amplitude without altering its frequency or form. ‘Transistor biasing’ is the process of accomplishing this by having the transistor’s input circuit remain forward-biased and its output circuit remains reverse-biased throughout the whole signal. The weak signal is received by the transistor’s base, and an amplified output is produced by the collector circuit. The signal must only increase in strength and not change in shape for amplification to occur.
Table of Content
- Performance of Amplifier
- Transistor as an Amplifier Working
- Transistor as an Amplifier circuit
- Common Emitter Transistor Amplifier
- Characteristics of CE Amplifier