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May 29 2020

What is a Ballast: Types, Function and Replacement Guide

I IntroductionThe ballast has become an important additional device in the gas discharge light source circuit. Because most gas discharge lamps are made using arc discharge characteristics and have negative characteristics (also known as negative resistance characteristics) where the voltage decreas

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May 26 2020

What is a High Pass Filter?

Ⅰ IntroductionA high-pass filter (HPF), also called a low-cut filter or bass-cut filter, passes signals with a frequency higher than a certain cutoff frequency and attenuates signals with frequencies lower than the cutoff frequency. That is, unnecessary low-frequency components or low-frequency sign

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May 26 2020

What is an LC Circuit?

I IntroductionThe LC circuit is a circuit composed of capacitors, inductors, resistors and other components and electronic devices that can generate oscillating current or have a filtering effect, and is also called a resonant circuit, tank circuit, or tuned circuit. The LC circuit formed by connect

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Apr 18 2020

Resistor Basics: Types of Resistors

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

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Mar 21 2020

Working Principle and Accuracy of Infrared Thermometers

CatalogI IntroductionII What is Infrared?III Theoretical Principle of Infrared Temperature MeasurementIV The Principle of Infrared ThermometerV Differences in Accuracy of Different Types of Infrared Thermometers  5.1 Three Categories of Infrared Thermometers  5.2 Differences Between Mainst

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Mar 20 2020

Operational Amplifier Applications, Op-amp Basics

Ⅰ IntroductionAs for operational amplifier applications, in electronic circuit, it is usually combined with a feedback network to form a certain functional module, with a special coupling circuit and feedback. Its output signal can be input signal addition, subtraction or differentiation, integratio

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Mar 13 2020

Variable Resistor: Basics, Application Circuits&Common Malfunctions

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

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Mar 12 2020

What is the Function of a Diode?

CatalogⅠ. Working Principle1.1 Terminology1.2 PN Junction1.2.1 Principle1.2.2 Feature: unidirectional conductivity1.2.3 Supplementary noteⅡ. Diode Applications2.1 Main Functions2.2 Typical Diode ApplicationsⅢ. One Question Related Diode Functions and Going Further3.1 Question3.2 AnswerⅣ. Diode Manuf

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Mar 7 2020

How to Test a Capacitor with a Multimeter in 5 Ways?

I IntroductionTwo adjacent conductors are sandwiched by a layer of a non-conductive insulating medium to form a capacitor. Capacitors are one of the most commonly used electronic components. They play an important role in circuits like tuning, bypassing, coupling, and filtering. For example, they ar

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Feb 22 2020

What is a Light Sensor?

I IntroductionThe light sensor is developed based on the photoelectric effect principle of semiconductors. It can be used to detect the intensity of ambient light, and it can also be used to detect the difference in light between different colored surfaces. Users can make projects that interact with

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