I have a digital ammeter. It had a problem three months ago. The situation is as follows: AC 220V power supply. Some of the main chips are as follows: ICL7650S chopper-stabilized high-precision operat...
[align=left] [font=宋体]The author is a graduate of Xidiantong Institute in 2013. Based on the job search this year and the summary of classmates around him, the salary of major companies is summarized ...
RT, when I was chatting with an agent yesterday, he said that some CM3 models are not subject to the 100-times limit on flash read and write. Is this true?...
Basic knowledge of inverterFrequency Converter Basics 1 VVVF ?? Abbreviation for Variable Voltage and Variable Frequency. ?? 2 CVCF ?? Abbreviation for Constant Voltage and Constant Frequency?? The vo...
I would like to ask what these peripheral devices and communication interfaces are used for. I hope there can be a more specific explanation.I’ve been searching online for a long time, but I haven’t s...
[i=s]This post was last edited by paulhyde on 2014-9-15 09:52[/i] Basic requirements: 1) Realize the acquisition, storage and display of multiple temperature signals by the MCU 2) Realize the dual-mac...
To differentiate their products in a crowded and competitive market, manufacturers of handheld devices often consider battery life and power management as key selling points for cell phones, PDAs, ...[Details]
July 11, 2012, Beijing - Altera Corporation (NASDAQ: ALTR) today announced the launch of 40-Gbps Ethernet (40GbE) and 100-Gbps Ethernet (100GbE) intellectual property (IP) core products. These core...[Details]
1. System Structure
This system is a simulation system of indoor air-conditioning temperature/humidity control system. The data acquisition and control center collects temperature/humidity...[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]
In the single-chip microcomputer system, in addition to display devices, sound devices are often used, and the most common sound device is the buzzer. Buzzers are generally used for some low-demand...[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]
Abstract: With the development and construction of BeiDou II system, China will shift from the situation dominated by GPS to the situation dominated by BeiDou II global navigation system independen...[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]
Against the backdrop of global warming, energy conservation and emission reduction have become a global hotspot and focus, which has also sounded the clarion call for the take-off of the LED lighti...[Details]
Nowadays, more and more people have digital cameras. The convenience and speed of digital cameras have gradually replaced film cameras and become the main tool for people's daily photography. The n...[Details]
1 Introduction
Washing machines are an indispensable household appliance in the home, and they are developing very fast. Fully automatic washing machines are favored by everyone because of their con...[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]
Some people think: as long as the program runs well, it doesn't matter how the original program is written. But this is absolutely not the case. Software is not completed in one go, and it is neces...[Details]
Current sensing in automotive applications includes controlling the current through solenoids and injectors. For example, during diesel injection, we rapidly increase the current to the induction i...[Details]
Test/Measurement
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