Different Types of Transistors and Their Functions

1. Different Types of Transistors and Their Functions

2. Different Types of Transistors and Their Functions Introduction: • Transistor is an active component and that is establishing in all over electronic circuits. They are used as amplifiers and switching apparatus. There are low, medium and high power transistors, for functioning with high and low frequencies, for functioning with very high current and or high voltages. http://www.elprocus.com/

3. Different Types of Transistors and Their Functions What is Transistor • The transistor is an electronic equipment. • It is made through p and n type semiconductor. • When a semiconductor is placed in centre between same type semiconductors the arrangement is called transistors. • A transistor is the combination of two diodes it is a connected back to back. • A transistor is a device that regulates current or voltage flow and acts as a button or gate for electronic signals. http://www.elprocus.com/

4. Different Types of Transistors and Their Functions Transistor Symbol http://www.elprocus.com/

5. Different Types of Transistors and Their Functions Transistor Symbol • The arrow symbol defined the emitter current. • In the n-p-n connection we identify electrons flow into the emitter. • This means that conservative current flows out of the emitter as an indicated by the outgoing arrow. • For p-n-p connection, the conservative current flows into the emitter as exposed by the inward arrow. http://www.elprocus.com/

6. Different Types of Transistors and Their Functions Bipolar Junction Transistor (BJT) • BJT transistors which are built up of 3 regions, the base, the collector, and the emitter.  • Bipolar Junction transistors are current-controlled devices. • Bipolar junction transistors come in two major types, NPN and PNP. • A NPN transistor is one in which the majority current carrier are electrons. • Electron flowing from the emitter to the collector forms the base of the majority of current flow through the transistor. http://www.elprocus.com/

7. Different Types of Transistors and Their Functions Bipolar Junction Transistor (BJT) • Electron flowing from the emitter to the collector forms the base of the majority of current flow through the transistor. http://www.elprocus.com/

8. Different Types of Transistors and Their Functions Field Effect Transistor • Field Effect Transistors are made up of 3 regions, a gate, a source, and a drain. • FETs are voltage-controlled devices. • A voltage placed at the gate controls current flow from the source to the drain of the transistor. • Field Effect transistors have a very high input impedance, from several mega ohms (MΩ) of resistance to much, much larger values.  http://www.elprocus.com/

9. Different Types of Transistors and Their Functions Field Effect Transistor • FETs draw very little current from a circuit’s power source. • Field Effect Transistors come in 2 main types: JFETs and MOSFETs. http://www.elprocus.com/

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