High-power diode thyristor knowledge serial-thermal characteristics

High-power diode thyristor knowledge serial-thermal characteristics

“Power diode thyristors are widely used in AC/DC converters, UPS, AC static switches, SVC and electrolytic hydrogen, etc. However, most engineers do not understand such bipolar devices as well as IGBTs. For this reason, we organized 6 Article serial, including forward characteristics, dynamic characteristics, control characteristics, protection, loss and thermal characteristics. “ Power diode thyristors are widely used in AC/DC […]

The interactive experience exhibition for the results of urban digital transformation was held in Shanghai, where citizens experience new life scenarios under 5G and dual gigabit on-site

The interactive experience exhibition for the results of urban digital transformation was held in Shanghai, where citizens experience new life scenarios under 5G and dual gigabit on-site

On December 25, the first event of the “Smart Dual Gigabit, Enabling Digitization” to promote the interactive experience exhibition of Shanghai’s urban digital transformation results was held in the South Plaza. The interactive experience exhibition is guided by the Municipal Commission of Economy and Information Technology, the Municipal Administration of Communications, and the Minhang District Government, sponsored by Shanghai Mobile […]

The benefits of laser steel cutting machine co-edge cutting

To improve the cutting efficiency of laser steel Cutting Machine and reduce cutting cost, the efficiency machine tool needs to be fully utilized. Typesetting software and laser cutting machine for iron sheet automatic programming software can help us to achieve this goal. The biggest function of the typesetting software is to improve the material utilization rate. The typesetting software arranges as many parts […]

SMIC issued a statement: All reports on “SMIC’s involvement in the military” are false news

In response to the news that the U.S. is considering including China’s largest chip manufacturer SMIC on the “Entity List”, SMIC issued a report on the afternoon of September 5th “About foreign media reports that the U.S. government is considering listing the company Statement on Trade Blacklist. The “Statement” stated that SMIC, as an internationally operating integrated circuit manufacturing company […]

Design criteria for stamping parts processing

The stamping parts processing design rope ruler is as follows: First, the stamping parts designed must meet the application and technical functions of the product, and they must be assembled and repaired at will; then they must be conducive to improving the utilization rate of metal materials, adding the types and specifications of materials, as much as possible. It can […]

Apple will cut AirPods production: cut production target by about 30%

According to news on April 28, according to Japanese media reports, Apple will cut AirPods production by 25%-30% this year because of the fierce competitive pressure brought about by manufacturers such as Samsung and Xiaomi. (TWS headset, picture from OFweek Electronic Engineering Network) Previously, Apple’s AirPods production was predicted to be 110 million, and the output in 2021 is expected […]

Prevent and solve die casting mold problems

Ways to prevent the phenomenon of sticking: 1. Check whether the mold temperature is normal, and appropriately reduce the alloy liquid pouring temperature and mold temperature; 2. Check if the ratio of the release agent is abnormal, try to replace the release agent, adjust the spraying position and spraying amount; 3. Polish the surface of the die-casting mold, and carefully […]

Will high power fibre laser cutting be the future of cutting?

With the continuous development of social productivity, production efficiency has become particularly important, and fiber laser cutting machines have been developing in the direction of larger format, higher precision and higher power. In general, fibre laser cutting machines can be divided into low power, medium power and high power, according to the output power. Although the low power fiber laser […]

Briefly introduce the basic knowledge of fmetal cutting fiber laser machine laser generator

The laser generator is one of the core parts of the metal cutting fiber laser machine. The more common brands are:IPG、nLIGHT、Raycus、JPT、MAX.• IPG:500W 700W 1000W 1500W 2000W 3000W 4000W 6000W 8000W 10000W 12000W• nLIGHT:1500W 2000W 3000W 4000W 6000W 8000W 12000W• Raycus:500W 750W 1000W 1500W 2000W 3000W 4000W 6000W 8000W 12000W• JPT:800W 1000W 1200W 1500W 2000W 3000W 4000W 6000W• MAX :500W 800W 1000W 1500W 2000W […]

5G development is at the right time, network construction should be moderately advanced

Recently, relevant experts from the China Academy of Information and Communications Technology released a series of reports to provide in-depth and systematic interpretations of the historical inevitability of 5G development, application fields, network construction paths, and technological maturity, to help understand the laws and characteristics of 5G development, and to innovate for 5G Develop and create a good environment. The […]