Basic knowledge of resistors
Welcome to the Resistors!
Type
There are various types of resistors, all with their own applications, characteristics and components. The entrance above is connected to the article introducing these different resistors. Definitely worth reading!
Fundamentals
Resistor is a two-terminal electronic element and has a certain structural form that can restrict the passage of current in the circuit. The effect of conductors on current is called resistance, and is represented by the symbol R. As a kind of identification, the resistor symbol is unique to each type of resistor. The unit of resistance is ohm, kiloohm, and megaohm, which are represented by Ω, KΩ, and MΩ, respectively.
Technique
For the problems caused by the resistors in the practical application process, people solve the problems through accumulated knowledge, experience and skills. This section focuses on how to measure resistance, how to sense resistance, and fault analysis.
Popular Ariticles
Date: 2021.01.16 Category: Resistors 425
Metal Oxide Varistor (MOV) Overview: Working and Application
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Ⅰ IntroductionThe blue or orange-colored circular part that you can typically spot on the AC input side of any Power Supply Circuit is a Metal Oxide Varistor or MOV. It is possible to consider the Metal Oxide Varistor as another form of variable resistor that can change its resistance depending on t...
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The Difference between Carbon Film and Metal Film Resistors
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Ⅰ IntroductionInvented by Boykin in 1959, resistors are today commonly used in almost all electronic circuits. Resistors can be described as a device that resists the flow of current flowing through itself, back when the resistor size was very huge and the tolerance value reached as high as 10 perce...
Date: 2020.08.31 Category: Resistors 3253
Resistor Basics: Resistors in Series and Parallel
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IntroductionResistors are usually connected in a circuit in various ways, and the two most basic ways are series and parallel. This article will mainly introduce these two connection methods, including their definitions, formulas, circuit diagrams, examples and identification methods. In addition, t...
Date: 2020.06.19 Category: Resistors 2639
Photoresistor: Basics and Arduino Tutorial
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I IntroductionPhotoresistor or light-dependent resistor (abbreviated as LDR) or photoconductor is a special resistor made of semiconductor materials such as cadmium sulfide or cadmium selenide. Its working principle is based on the internal photoelectric effect. The stronger the light, the lower the...
Date: 2020.04.18 Category: Resistors 2448
Resistor Basics: Types of Resistors
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I IntroductionThere are a wide range of types of resistors, and with the development of electronic technology, new types of resistors will continue to increase. Resistors are generally divided into two categories: fixed resistors and variable resistors. Fixed resistors can be divided i...
Date: 2020.03.13 Category: Resistors 2393
Variable Resistor: Basics, Application Circuits＆Common Malfunctions
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CatalogI IntroductionII Definition, Symbol and Labeling of Variable Resistor2.1 Definition2.1.1 What is Variable Resistance?2.1.2 What is Variable Resistor?2.2 Symbol2.3 Labeling Method of Variable ResistorIII How The Variable Resistor WorksIV Features of Variable Resistor ShapeV Structure and Funct...
Date: 2019.09.30 Category: Resistors 3133
Resistor Basics: Resistor Symbol
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I IntroductionThe resistor symbol as a kind of identification is unique to each type of resistor. There are many types of resistors, which can be divided into fixed resistors, variable resistors, special resistors, high-power resistors, low-power resistors, etc. They basically have different symbols...
Date: 2019.09.02 Category: Resistors 4461
How To Measure Ground Resistance?
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I IntroductionGround resistance testing methods are usually the following: two-line method, three-line method, four-line method, single-clamp method and double-clamp method. Each has its own characteristics. In an actual test, we have to choose the correct testing method to make the test results acc...
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Varistor Guide: Working, Function, Types, and Application
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IntroductionVaristor is an ideal protective element with the characteristics of high price, small volume, wide working voltage range, fast response to overvoltage pulse, strong resistance to impulse current, low leakage current (less than a few microamperes to tens of microamperes), small resis...
Date: 2019.05.24 Category: Resistors 2871
How to Measure Resistance and How to Detect Resistance?
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I IntroductionThere are many ways to measure resistance: ohmmeter, volt-ampere, volt-volt, ampere-ampere, bridge, substitution, comparison, half-deviation and so on. No matter what the method is, the experimental principle is no more than partial circuit Ohm's law and closed circuit Ohm's law as wel...
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