It is understood that the inverter is to change the power supply voltage by changing the frequency of the power supply. Specifically, what is the principle of inverter operation? The main circuit is to provide the power conversion part of the voltage regulating and frequency modulation po

Zhouming Technology released the results of the first three quarters of 2012. The company estimates the net profit of the shareholders of the listed company in the first three quarters: 9 million to 14 million yuan, which will be 60.17%-74.39% lower than the previous year's 35.74 million yuan.

When you see Lei Jun's microblogging, it seems that the last generation of millet mobile phone youth generation seems to be a short time ago, and now Xiaomi mobile phone 1S youth edition will soon appear in front of everyone. Xiaomi CEO Lei Jun today announced on the microblogging will

The problem of global warming is getting worse and the problem of food shortage is getting worse. Therefore, in recent years, LED light source has been used in plant food cultivation, and the establishment of “plant factory” has become a trend. According to the industry analyst of Taiwa

For the characteristics of LED lighting load, the topology of the current non-isolated constant current driving power supply is basically a BUCK buck structure. This paper will divide the development of non-isolated LED constant current control technology into three generation

In today's tide of security network, wireless technology has undoubtedly played a role in fueling the waves. In recent years, wireless technology applications have grown like spring grass, and the daily application forms and potentials of broadcasting, television, mobile phones, and networks

Nowadays, AMOLED will become a popular panel display technology. It can be said that it is entirely from Samsung Arch. What we don’t know is that in the past, the Taiwan Plant’s development in AMOLED was ahead of the Korean Plant, but it was later abandoned and the resources

In recent years, the Quality Supervision Bureau, the State Administration of Inspection and Quarantine, and the Industry and Commerce Bureau have conducted quality inspections on LED lighting products, energy-saving lamps, road lighting, fire emergency lamps and electric light sources throughout th

From January to September 2012, the Hangzhou Economic and Technological Development Zone exported 10094.19 million US dollars of LED lights, up 34.67% year-on-year. In a relatively weak economic environment, it achieved a contrarian rise. Hangzhou Inspection and Quarantine Development Zone Office

[Source: "New Industry" October issue] Less than three months after the listing, domestic LED chip maker Huacan Optoelectronics (300323.SZ) launched a large-scale expansion in Suzhou, Jiangsu. On September 11, Huacan Optoelectronics held a general meeting of shareholders to approve the

Whether it is operating kitchen appliances or other electrical appliances, the store has an important main guideline: listen to → interest → gaze → introduction → visual experience → welcome reception. This main line is through the exquisite store i

Recently, Sun Dawei, deputy director of the General Administration of Quality Supervision, Inspection and Quarantine, said in the action theme publicity campaign that "Farewell to incandescent lamps + light green life". In the future, China will gradually phase out incandescent lamps, whi