[font=宋体][size=1][color=#ffffff]Changhui Instrument[/color][/size][/font][font=宋体][color=#000000] Voltage transformers are usually connected to energy meters, voltmeters, multi-function power meters a...
Microcomputer Principles and System Design : https://training.eeworld.com.cn/course/4926This series introduces the principles of microcomputers and system design, number systems and code systems in co...
I use a 3886 power amplifier tube to drive a pair of transistors to expand the current, and then the output of the transistor drives the transformer to make the final output, but the PNP transistor is...
How to define these state_machine rcvdat retval is serial communication parsing if(state_machine == 0) // Protocol parsing state machine { if(rcvdat == 0x55) // Received the first data of the frame he...
The development trend of communication receivers is that they must sample the signal as soon as it enters the receiver signal channel and be equipped with accurate testers. To achieve this goal, ultra...
I recently started working on a stm32 development project, and I have a few questions to ask:1. How do I switch between input and output in GPIO settings? For example, when doing analog I2C, the SDA p...
A single-chip microcomputer is also called a single-chip microcontroller. It is not a chip that completes a certain logical function, but a computer system integrated into one chip. In general, a c...[Details]
1. Overview
Will passive devices
produce nonlinear intermodulation distortion? The answer is yes! Although there is no systematic theoretical analysis, it has been found in engineerin...[Details]
introduction
For the voltage regulator modules (VRMs) that power the latest computer central processing units (CPUs), power supply designers have historically used multiphase interleaved b...[Details]
1 Introduction
There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have ...[Details]
Single-chip microcomputers are widely used because of their small size, powerful functions and low price. This article introduces the method of designing a micro electronic piano using the AT89C51 sin...[Details]
1 Embedded Systems
Embedded System refers to a collection of computer hardware and software with specific functions or purposes, which is divided into embedded software system and embe...[Details]
With the rapid development of the national economy, lifting and hoisting operations are used more and more frequently and widely in various fields of economic construction. China has continuously expl...[Details]
The power consumption of a switching power supply includes fixed losses caused by parasitic resistances such as semiconductor switches, magnetic components, and wiring, as well as switching losses ...[Details]
IntroductionLED
billboards are a kind of information display terminal for the public, which has a wide range of civil and commercial values. However, the information displayed on most LED bil...[Details]
introduction
Belt drive is a common transmission device used in industrial production. Its commonly used speed detection device is a photoelectric encoder installed at the rotating end of th...[Details]
1. Introduction
AS-Interface bus technology is an intelligent network that uses a single cable to connect sensors and actuators to controllers, transmit data, and provide power. It can be used...[Details]
In the 1980s, breakthroughs were made in the design and production of small, low-power quartz metal halide lamps with precise dimensions. At the same time, with the acceleration of people's lives a...[Details]
Improving the coordination of material handling and internal transportation between departments in modern factories is an important measure to achieve full automation of production. Traditional mat...[Details]
introduction
This paper mainly studies the problem of voltage sag control. For sensitive load equipment with rectifier inverter structure, this paper proposes a DC dynamic voltage restorer (Dy...[Details]
Industrial Control Electronics
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