Electronics Science Notes
1) Semiconductor Diodes
Electronics is the study of electrical circuits that involve active electrical components such as vacuum tubes, transistors, diodes, and integrated circuits, and associated passive interconnection technologies.
2) Bipolar Junction Transistor (BJT)
A semiconductor is a material that has electrical conductivity between that of a conductor and an insulator. They are the foundation of modern electronics.
3) Oscillators
A diode is a semiconductor device that allows current to flow in one direction only. It's one of the most basic components in electronics.
- Barkhauson Criteria,
- Low frequency Wein-bridge oscillator,
- High frequency crystal oscillator Notes of Unit-3)
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4) Data converters
Transistors are semiconductor devices used to amplify or switch electronic signals. They are the building blocks of modern electronic devices.
5) Introduction to Instrumentation System
Circuit design is the process of designing electronic circuits that achieve a specific functionality. It involves selecting components and creating schematics for electronic devices.
- Block diagram of Instrumentation system, Definition of sensor and transducer Classification of sensors: Active and passive sensors.
- Specifications of sensors: Accuracy, range, linearity, sensitivity, resolution, reproducibility.
- Temperature sensor (Thermistor, LM-35), Passive Infrared sensor (PIR),
- Actuators: DC Motor, stepper motor Notes of Unit-5)
6) OPAMP as signal Conditioner
Circuit design is the process of designing electronic circuits that achieve a specific functionality. It involves selecting components and creating schematics for electronic devices.
- Concept, block diagram of Op amp,
- basic parameters (ideal and practical): input and output impedance
- bandwidth, differential and common mode gain, CMRR,
- slew rate, IC741/ LM324, Concept of virtual ground. Notes of Unit-6)
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