Because of the high frequency pure sine wave inverter pursuit of hard switching inherent flaws become intolerable: big turn-on and turn-off losses; capacitive open question; diode reverse recovery problems; inductive shutdown problems; hard switching circuit EMI problem. Therefore, it is necessary to seek a better solution to minimize or eliminate

Electric bicycle brushless DC TO AC motor rotor is 30-40 NdFeB magnets composition. Since the surface magnetic field strength Neodymium magnets over 500mT, electric bicycle brushless DC motor in the position sensor is particularly suitable silicon Hall sensor . Hall sensor silicon manufacturing process may be compatible with the integrated circuit

September 18, 2013, the domestic photovoltaic grid tie inverter global solutions provider Guangzhou Crystal Electric Co., Ltd. (Crystal Electric) and East China's first distributed PV system integrators Union on New Energy Technology Co., Ltd. Hi-Tech (Thailand United New energy) reached a strategic cooperation agreement, the two sides will establi

Smart meters capacity release, protection net profit growth: in 2010 completed three national network tender, the company won the bid amount of about 270 million yuan, the successful enterprises in Ningbo Samsung, Wei Sheng Group, composed Clou Electronics smart meter industry The first echelon. The fourth quarter of the State Grid Corporation will

2012, the Spanish PV project developers new installed capacity is only 277MW, while in 2011 and 2010 new PV systems were installed capacity of 410MW and 427MW, 2008 peak of new capacity is up to 2.7GW. 2011, the Spanish photovoltaic industry employs more than 12,000 employees in total, but now this figure has dropped to 7,500 people, most of them e

Today's solar grid tie inverter layout needs to be based current sensor compact, low-cost and reliable ground current detection scheme. LEM which specially designed CT series sensors. They are rated range of 100mA, 200mA and 400mA different current device, provided at rated current 5 volt linear output. 80% of the rated current and 90% of the condi

In the recent introduction of the " relevant State Council on promoting the healthy development of photovoltaic industry a number of opinions " and highlighted the priority support distributed photovoltaic power generation demonstration ( city ) County , to create demonstration areas and demonstration towns. This is also in line with the 2013 serie

Recently, Guruiwate announced that its PV inverter products shipped worldwide breakthrough 1GW. It is understood that Guruiwate to sell well in Europe, the United States and Australia market fame, and its rapid growth in the domestic market the same industry to admiration. Guruiwate early 2012 officially entered the domestic market, and to maintain

Insiders pointed out that the electrical industry in the past by the Institute for the joint design of new products led to this industry-wide production model will break, companies began to develop differentiated products. Considerations such as design institute, power, metallurgy, chemical, oil and other actual needs of enterprises, a design insti

China South Locomotive and its "CSR Zhuzhou Electric Locomotive Research Institute Co., Ltd." (referred to as China CSR Zhuzhou) developed 500 kilowatts of new PV inverters, photovoltaic power plant in Qinghai Plateau successfully installed a grid. The company can meet the large-scale photovoltaic products photovoltaic power plant complex requireme