May 29 2020

What is a Ballast: Types, Function and Replacement Guide

I Introduction The 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 decre...

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May 27 2020

The Basic Introduction to Light-emitting Diode

    I Introduction The light-emitting diode is a commonly used light-emitting device, which emits energy through the recombination of electrons and holes. It is widely used in the field of lighting. Light-emitting diodes can efficiently convert electrical energy into light energy. Light...

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May 26 2020

What is a High Pass Filter?

Ⅰ Introduction A 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 si...

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May 26 2020

What is an LC Circuit?

I Introduction The 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 conne...

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Apr 18 2020

Resistor Basics: Types of Resistors

I Introduction There 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 into tw...

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Mar 21 2020

Working Principle and Accuracy of Infrared Thermometers

Catalog I Introduction II What is Infrared? III Theoretical Principle of Infrared Temperature Measurement IV The Principle of Infrared Thermometer V Differences in Accuracy of Different Types of Infrared Thermometers  5.1 Three Categories of Infrare...

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Mar 20 2020

Operational Amplifier Applications, Op-amp Basics

Catalog Ⅰ Introduction   1.1 Integrated Op Amp   1.1.1 Evaluation Analysis   1.1.2 Integrated Op Amp Basics Ⅱ Op-amp Parameters Ⅲ Application Matters Ⅳ One Question Related Op Amp and Going Further   4.1 Ques...

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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?

Catalog Ⅰ. Working Principle 1.1 Terminology 1.2 PN Junction 1.2.1 Principle 1.2.2 Feature: unidirectional conductivity 1.2.3 Supplementary note Ⅱ. Diode Applications 2.1 Main Functions 2.2 Typical Diode Applications ...

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Mar 7 2020

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

CatalogI IntroductionII Definition of CapacitorIII The Reasons and Effects of Testing Capacitors and Withstand Voltage Performance 3.1 Why Should We Measure the Capacitance of A Capacitor? 3.2 Why Should Capacitors Undergo A Withstand Voltage Test?IV The Difference of Capacitors with Diffe...

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