Bi Directions Thyristor (Triac) Bi Directions Thyristor (Triac) is equivalent to the antiparallel connection of two unidirectional thyristors, but only one control pole. Bi Directions Thyristor,Electronic Components Triac,Power Thyristor For Inverter,Silicon Power Bipolar Transistors YANGZHOU POSITIONING TECH CO., LTD. , https://www.yzpst.com
Energy saving and environmental protection are promising. Since the beginning of the new year, the state has introduced policies to promote energy conservation. The Ministry of Finance and the National Development and Reform Commission jointly issued the "Interim Measures for the Administration of Financial Subsidy Funds for Efficient Lighting Products Promotion" (hereinafter referred to as the "Measures") in early 2008, and recently announced a new "Government Procurement List for Energy-Saving Products". These are substantial benefits. It is tantamount to blowing into the spring of the lighting energy-saving industry. The subsidies related to the implementation of energy-saving projects by the Zhejiang government have made the relevant enterprises see the glorious prospects of “green lightingâ€.
Last year, Hangzhou Hongyan Electric made a green lighting project for Hangzhou Anji Road Primary School, and received a preferential subsidy of 200,000 yuan from the Provincial Construction Department. Although the total sales of green lighting products is less than 1/10 of the total sales, but based on the optimistic view of the green lighting industry, Hongyan Electric has invested a lot of manpower and material resources for research and development, and there have been many “dimming ballasts†and so on. Energy-saving products have achieved scientific and technological achievements.
According to the "Measures", starting from this year, the state will promote 50 million energy-saving lamps nationwide by means of financial subsidies, and subsidize 30% of the supply price of each energy-saving lamp for large users such as schools and hotels. Give 50% subsidy. The government subsidies and high-efficiency lighting products provided by the bidding enterprises of the Green Photo Project must print the words “Government Subsidy, Green Photo Project†on the outer packaging and body of the product. During the “Eleventh Five-Year Plan†period, the state will promote 150 million energy-saving lamps, which can save 29 billion kWh and reduce carbon dioxide emissions by 29 million tons.
Green lighting refers to the use of scientific lighting design, using high-efficiency, long-life, safe and stable lighting electrical products, making full use of natural light to create an efficient, comfortable, safe, economic and beneficial environment and fully reflect modern civilization. Lighting. Lighting energy saving is an important part of green lighting engineering. Energy-saving lamps, also called compact fluorescent lamps, consume only 1/5 to 1/4 of the power compared to current common incandescent lamps, and have a lifetime of up to 10 times.
In 1983, Xu Guorong, chairman of Zhejiang Sunshine Group, saw the news of energy-saving lamps developed abroad in the magazine, and then started research and development of energy-saving lamps. Two years later, China’s first energy-saving lamp certified by Fudan University’s energy-saving standards was launched in Zhejiang. Now, Sunshine Group has become one of the largest energy-saving lamp production and export bases in China. The annual output of energy-saving lamps is more than 250 million. Zhejiang has become the country's largest energy-saving lamp production base, accounting for more than 30% of national energy-saving lamps. And become "the world's largest energy-saving lamp manufacturing plant."
The severe environmental situation has made Australia, the European Union, Canada, the United States and other places have entered the countdown of eliminating incandescent lamps. The “good†demand for energy-saving lamps in the global market has brought about an increase in international orders and an increase in investment from foreign lighting giants for Zhejiang energy-saving lamps. In January of this year, Philips and Sunshine Group signed a joint investment of 120 million yuan to implement an annual increase of 100 million energy-saving lamps. Lu Jun, assistant general manager of Sunshine Group, said: "The current annual sales volume of incandescent lamps is 12.5 billion, and the energy-saving lamps are 4 billion. The incandescent lamps have been greatly replaced by energy-saving lamps, which brings us huge business opportunities."
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Bidirectional thyristors are made of N-P-N-P-N five-layer semiconductor materials, and three electrodes are also derived from the outside. Its structure is shown in the figure. Bi-directional thyristor volt-ampere characteristic curve Since the forward and reverse characteristics of the bidirectional thyristor are symmetrical, it can be turned on in any direction and is an ideal AC switching device.