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Jan 31 2018

Basic Knowledge of Relay Electronics Tutorial with Video

Warm hints: The word in this article is about 3200 and  reading time is about 20 minutes. IntroductionAs an electric control device, electrical relay is a kind of electrical apparatus that causes the controlled variable to have a step change in the electrical output circuit when the chang

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Jan 29 2018

How to Identify Pulse Circuit Diagram

SummaryThere are a wide range of electrical pulse shape, sch as a rectangular, triangular, zigzag, bell, staircase and spire-shaped, the most representative of which is the rectangular pulse. Pulse circuit is designed to produce electrical pulses and electric pulse amplification, transformation and

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Jan 25 2018

A Signal Generator Project Based on Single Chip Microcomputer 89C51

  Warm hints: The word in this article is about 2800 and reading time is about 14 minutes. Summary In this article, it will mainly introduce a low frequency function signal generator project based on single chip microcomputer 89C51 . By adopting the technology of digital waveform s

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Jan 23 2018

The Working Principle of High-Power Adjustable Switching Power Supply

  Warm hints: The word in this article is about 3500 and reading time is about 18 minutes. Summary This paper presents a new design of high-power adjustable switching power supply. Using Buck-type switching power supply topology, with a single PWM output, MC33060 as a control IC, and dual ou

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Jan 20 2018

Isolator--An Important Part of the Industrial Control Systems

Warm hints: The word in this article is about 2500 and reading time is about 12 minutes. Summary Isolator--also known as the signal isolator, is an important part of the industrial control system, is a linear optocoupler isolation principle, the input signal is converted to output. The input,

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Jan 19 2018

Basic Operational Amplifier Characteristics and Classifications

Warm hints: The word in this article is about 3500 and reading time is about 18 minutes. IntroductionIt has been more than 40 years since the analog operational amplifier was born. The earliest process is the use of silicon NPN process, later improved to silicon NPN-PNP process (hereafter called st

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Jan 18 2018

Transistor Switching Circuit Design and Its Theory

SummaryTransistor switching circuit (working in saturation state) is commonplace in modern circuit design applications. The classic 74LS, 74ALS and other integrated circuits use transistor switching circuits internally, but they have only common driving capability. Transistor switching circuit is di

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Jan 17 2018

Microcontroller Applications and Its Principle

Warm hints: The word in this article is about 3200 and reading time is about 20 minutes. Summary A microcontroller is a single chip microcomputer that integrates the main parts of a microcomputer on a chip. The microcontroller was born in the middle of 1970s. After 20 years of development, its cos

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Jan 15 2018

Analysis of Switching Power Supply Principle

Warm hints: The word in this article is about 4800 and reading time is about 28 minutes. Summary Currently there mainly includes two types of power supply: linear power (linear) and switching power (switching). This paper is mainly about analysis of switching power supply principle,such as linear

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Jan 12 2018

Thermistor Introduction--​Temperature Sensitive Component

Warm hints: The word in this article is about 4000 and reading time is about 25 minutes. Summary Thermistors are a type of sensitive component, which are divided into positive temperature coefficient thermistor (PTC) and negative temperature coefficient thermistor (NTC) according to the temperatur

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