[Source "High-tech LED-technology and application" March issue Long Zonghui] Semiconductor Fuse and Ferrite
Fuse refers to an electric appliance that, when the current exceeds the specified value, melts the fuse and disconnects the circuit with the heat generated by itself.When the current exceeds the specified value for a period of time, the fuse melts and disconnects the circuit with the heat generated by the fuse itself.A current protector made from this principle.The fuse is widely used in high and low voltage power distribution system and control system as well as power equipment.
Ferrite is a metal oxide with ferrous magnetism.As far as electrical properties are concerned, the resistivity of ferrite is much larger than that of single metal or alloy magnetic materials, and it has higher dielectric properties.Ferrite magnetic energy also shows high permeability at high frequencies.As a result, ferrite has become a non-metallic magnetic material widely used in the field of high frequency and weak current.Due to the low ferrite magnetic energy stored in the unit volume, saturated magnetic induction strength (Bs) and low (usually only pure iron 1/3 ~ 1/5), and thus limits its higher requirements in the low-frequency magnetic energy density in the field of high voltage and high power applications.
Semiconductor Fuse, Fuse Cutout, Protection Fuse, Square Fuse, Fuse Link, Ceramic Fuse, Fuse Box, Fuse Resistors YANGZHOU POSITIONING TECH CO., LTD , https://www.yzpstcc.com
Some people say that the LED industry has entered the cold winter. I don't think so. The market is very good today. Only those companies that have no quality, no innovation, and no marketing will complain about the market's indifference. Laiwei Optoelectronics has been focusing on lighting products, with sales of 30 million in 2010 and 80 million in 2011, maintaining annual sales growth of 300%. The products are exported to more than 100 countries and regions around the world.
Shenzhen Laiwei Optoelectronics Co., Ltd. was established in 2006. In the difficult period when the LED lighting domestic market is still in its infancy and the foreign market lacks effective channels, Laiwei uses the combination of foreign trade network marketing and high quality and low price to quickly open the market. At present, Levi has a million-level optical laboratory for simulation system testing of light distribution (IES report), color test, drive life, and high and low temperature harsh environments. And through the ISO9001: 2008 quality management system certification, all products have passed the European CE, GS, ROHS certification and China's 3C certification.
In 2012, Laiwei will strive to open up the domestic market and actively create industry famous brands. In 2013, we further expanded the visibility of the domestic market and improved the construction of mass brands. We will use 3 years as the leading brand of LED commercial lighting.
Internet marketing opens the market
According to statistics, 90% of European and American companies search for their customers and products through the network. International buyers also generally find and choose through the network, and then get in touch. As the world's largest and most professional search engine, Google has covered more than 250 countries and regions, supporting 132 languages ​​and more than 200 million queries per day. The huge consumer groups, especially the changes in business habits of enterprises, gave Laiwei a good opportunity to open up international sales channels. In 2006, domestic foreign trade network marketing was still in its infancy. Laiwei dared to be the first in the world, seized the opportunity to set up the e-commerce department, mainly studied the Google ranking algorithm, and locked the first three pages of the Levi LED core keywords through SEO optimization. Adding a blog and other external links brings hundreds of effective IPs to Levi every day. Compared with the purchase of Alibaba, Global Sources related foreign trade packages or direct outsourcing network marketing company, the effect is controllable and the price is lower. “With the results of network marketing, Laiwei has implemented a zero-profit strategy at the beginning of its establishment. Although it has affected the company's profit for a period of time, it has accumulated the first customers for Levi and quickly expanded its market share. Now Laiwei has With more than 300 stable customers, it has ensured that the company continues to make profits." Tan Jian, general manager said.
For more information, please refer to the March issue of "High-tech LED--Technology and Applications" magazine 