Switch Mode Power Supply (SMPS) or Switching Regulators: Switch Mode Power Supply (SMPS) – The regulated power supplies described earlier were basically linear voltage regulators. A linear voltage regulator possesses many limitations: The input transformer is bulky and is a very expensive component in the whole regulated power supply since it is used at low […]
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What is Gray code? (Definition, Conversions & Examples): This Gray code belongs to a class of codes called minimum-change code, in which only one bit in the code group changes when going from one step to the next. This is an unweighted code, which means that there are no specific weights assigned to the bit
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Power Diode – Structure, Symbol, Characteristics and Types: Diodes find many applications in electronics and electrical engineering circuits. Power diodes play a significant role in power electronics for conversion of electric power. A diode acts as a switch to perform various functions, such as switching in rectifiers, freewheeling in switching regulators, charge reversal of capacitor
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Microprocessor Based Protection Relay: Reliable and accurate protection schemes are required for any system. Microprocessors can fulfill these requirements without fail. In addition to the system protection, microprocessors can perform all control operations, analysis as well as measurement. The cost of a protective scheme should be about 1% of the cost of the equipment to
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Measurement of Physical Quantities: Measurement of Physical Quantities is given by Displacement Measurement Strain Measurement Force Measurement Torque Measurement Pressure Measurement Temperature Measurement Water-Level Indicator Measurement and Display of Speed of a Motor Nowadays, physical quantities such as force, displacement, acceleration, velocity, speed, temperature, pressure, flow and level, etc., are measured and displayed using microprocessors
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Measurement of Electrical Quantities: Measurement of electrical quantities which includes Measurement of Voltage Measurement of Current Frequency Measurement Phase-Angle Measurement Power-Factor Measurement Impedance Measurement VA Measurement Power Measurement VAR Measurement Energy Measurement Measurement of Voltage Figure 10.9 shows the schematic block diagram of dc voltage measurement. Firstly, the dc voltage is applied to the peak
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8255A Programmable Peripheral Interface: 8255 is a programmable peripheral interface IC and is a multiport input/output device. This is a general-purpose programmable I/O device, which may be used with many different microprocessors. There are 24 I/O pins, which may be individually programmed in 2 groups of 12 and used, in 3 major modes of operation.
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Fully Automatic Digital Instrument: Fully Automatic Digital Instrument – A multimeter with automatic polarity indication, automatic zero correction and automatic ranging (of course coupled with automatic decimal point indication) only needs a signal applied to its input, and a command as to what quantity (Vdc, Vac, I or R) to measure; it does all the
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Working Principle of Digital pH Meter | Block Diagram: Working Principle of Digital pH Meter – The Digital Measurement of hydrogen ion activity (pH) in a solution can be accomplished with the help of a pH meter. For those unfamiliar with the terminology, a very brief review is included. pH is a quantative measure of
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Electronics Engineering → Basics of Electronics Engineering Introduction to Electronics Engineering Electron Dynamics Electron Emission Electron Tubes Semiconductor Physics Theory of PN Junction Diodes Zener Diode Terminals Rectifiers BJT Transistor Hybrid Parameters Transistor Biasing and Stabilization FET Transistor Single Stage Transistor Amplifiers Amplifier Frequency Response Multistage Amplifiers Large Signal or Power Amplifiers Tuned Amplifier Feedback
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