11. Electronic Devices
Electronic devices, utilizing semiconductor materials, are essential components in modern technology, facilitating various applications from communication to medical systems. The chapter explores passive and active devices, including diodes, transistors, and integrated circuits (ICs), highlighting their workings and practical applications. Key focus is on the roles these components play in signal processing, amplification, and regulation in numerous electronic devices.
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What we have learnt
- Electronic devices control the flow of electric current using semiconductor materials.
- Passive devices do not require external power, while active devices do.
- Diodes are used for rectification and signal demodulation; transistors are pivotal for amplification and switching.
- Integrated circuits combine multiple electronic components into a single unit for efficient operation.
- Field Effect Transistors are widely used for high-precision applications.
Key Concepts
- -- Electronic Devices
- Components that use semiconductor materials to control and manipulate electric current.
- -- Passive Devices
- Components that do not need external power to operate, relying on the circuit energy.
- -- Active Devices
- Devices that require external power, such as transistors and integrated circuits.
- -- Diodes
- Two-terminal devices allowing current flow in one direction, used mainly in rectification and signal demodulation.
- -- Transistors
- Three-terminal devices used for amplification and switching in electronic circuits.
- -- Integrated Circuits (ICs)
- Sets of electronic components integrated into a single semiconductor piece for various functions.
- -- Field Effect Transistor (FET)
- A three-terminal device that uses an electric field to control current flow, notable for its high input impedance.
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