Nov 13 2019

Non-Inverting and Inverting Amplifiers Basic Analysis

Ⅰ. IntroductionIn electronics, an operational amplifier is a circuit unit with a very high amplification factor. In the actual circuit, usually combined with the feedback network to form a certain functional module. It is an electronic device with a special coupling circuit and feedback. T

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Nov 4 2019

Inductive Ballast

I. Overview1.1 Definition of Inductance Ballast A device that is connected between a power supply and one or more discharge lamps. Its main function is to limit the lamp current to the desired value by a combination of inductance, capacitance or inductance and capacitance. The device can be constru

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Nov 1 2019

Electronic Ballast

Ⅰ IntroductionElectronic ballast, a type of ballast resistor, refers to an electronic device that uses electronic technology to drive an electric light source to produce the desired illumination. Another type of ballast resistor which corresponds to this is an inductive ballast. Nowadays, fluorescen

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Nov 1 2019

The Selection Techniques of Fuse Resistors

Ⅰ Fuse ResistorResistors and fuses are similar in material and construction, and fuse-type resistors have both functions. They can be used as resistors. Once the current is abnormal, they act as fuses to protect the equipment. The cost is reduced due to the dual function. The fuse resistor 

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Oct 31 2019

Three-phase Power Transformer

Ⅰ The Principle and Structure of Three-phase Power Transformer1. The Basic Structure of the TransformerThe power transformer works by the principle of electromagnetic induction, so its most basic structural composition is the circuit and the magnetic circuit part. The c

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Oct 31 2019

Vacuum Tube Computer Definition and Basic Idea

Ⅰ IntroductionThe main feature of the vacuum tube computer is the use of the electron tube as the basic electronic component, which is large in size, large in power consumption, short in life, low in reliability and high in cost, and the internal memory uses a mercury delay line. During th

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Oct 31 2019

Structure of Transformer

I Overview of the Structure of the TransformerThe power transformer is an electrical device manufactured according to the principle of electromagnetic induction. Therefore, the power transformer should at least be able to efficiently utilize the core and winding of the electromagnetic induction

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Oct 25 2019

What is the Self-discharge of Batteries?

Ⅰ AbstractIn theory, the chemicals within the battery does not react with each other when the battery is not used, and redox reactions only occur when an electrical appliance is connected to the battery. In real life however, ordinary batteries, including dry batteries (alkaline), will ge

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Oct 25 2019

Vacuum Tubes: Types of Vacuum Tubes Tutorial

Ⅰ. IntroductionThe electron tube, also called electron tube or valve, is one of the earliest electrical signal amplifier components in electronics. A cathode electron-emitting portion, a control grid, an acceleration grid, and an anode (screen) lead enclosed in a glass container (gene

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Oct 19 2019

Four Typical Electronic Filters (Signal Processing)

IntroductionIn modern telecommunication equipment and various control systems, the filters are extremely widely used. Among all electronic components, the most used and most complicated technology is the filter. The advantages and disadvantages of the filter directly determine the performance of the

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