1. How much importance do companies place on software testing?It can be seen that most companies still attach importance to software testing.
2. Educational requirements for software testing engineers...
Study Notes: Li Rui from Shanghai Jiaotong University - Research Solutions for Energy Storage Systems
Author: The Sky That Has Not Flyed
Source: The Road to Switching Power Supply (Official Account)Th...
Evaluation kit: Zhengdian Atom DFPGL22G development board (main board + Ziguang downloader)The DFPGL22G development board is the first board based on domestic FPGA chips launched by Zhengdian Atom . T...
China Chemical and Physical Power Industry Association
Group Standard Announcement
No. 6 of 2022 (No. 20 in total) The China Chemical and Physical Power Sources Industry Association has approved the ...
This case is a configuration case of using a Profinet to RS485 gateway to connect three multi-function power meters.Required equipment: a Siemens 1200PLC, a Profinet to RS485 free protocol gateway, an...
This case is a configuration case of using a Profinet to RS485 gateway to connect three multi-function power meters.Required equipment: a Siemens 1200PLC, a Profinet to RS485 free protocol gateway, an...
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[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]
As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[Details]
The Portable Digital Data Acquisition System (PDDAS) uses LabVIEW Real-Time and PXI to control the wind tunnel test and record air pressure data from 128 different channels.
"The LabVIEW Real-...[Details]
As LEDs continue to improve in almost every aspect of performance and cost, LED lighting is being used in an increasingly wide range of applications, among which LED street lights are a focus of in...[Details]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
My colleague and I spent the day chatting in the hotel bar. We had met with several customers. We were both wondering how come these engineers we were meeting knew almost nothing about analog techn...[Details]
General LED lighting has a current limiting resistor in the driving circuit, and the power consumed by the resistor has nothing to do with the LED light emission. In order to improve efficiency, a...[Details]
In the analysis of electronic circuits, static analysis (also known as DC analysis) is the basis of circuit analysis. However, it is well known that electronic components are nonlinear, so the anal...[Details]
RS-422 and RS-485 are both serial data interface standards, which were developed and published by the Electronic Industries Association (EIA). RS-422 defines a balanced communication interface with a ...[Details]
In recent years, with the rapid development of the information industry, dot matrix LED display screens have been widely used in various advertising and information display systems such as the fina...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[Details]
Today, the value of electronic components in cars accounts for 15-20% of the total vehicle. In the future, this proportion may be as high as 30-40% as more safety electronics, fuel consumption and ...[Details]
Describe how to meet the challenges of complexity with a modern wiring design toolset. Option codes and expressions can simulate the variables of an automotive project. A full-featured tool suite c...[Details]
D5026A is a driver IC designed by Shanghai Debei Electronics for energy-saving LED display screens. Its design concept is energy-saving and compatible with existing solutions, that is, it can be ...[Details]