Marin Sol Gashic, a physics professor at MIT, found that using special harmonic wireless can transmit energy. Its principle is to make the charging device and portable small appliances produce * * * vibration with the same frequency. The researchers applied this principle to the experimental operation and achieved success. The experiment can be repeated.
Professor Sol Gashic believes that there is no urgent need for wireless transmission of electric energy at present, but it is foreseeable that if this technology can be put into practical application, at least many electrical equipment will no longer need batteries, which is a major culprit in environmental pollution.
However, this technology needs to be further improved before it is put into practical application. First of all, the energy efficiency of the test system is only 40%-45%, which means that more than half of the energy is wasted on power transmission projects. Scientists believe that the efficiency of this technology needs to be doubled to make its energy efficiency reach the existing transmission mode. Secondly, the geometric size of the copper coil for transmitting electric energy is too large, with a width of 60 cm, which must be reduced in practical application. Thirdly, the transmission distance of 2 meters needs to be further increased. The goal is to use one charging device to power multiple portable devices in the same house.
The researchers also said that the electromagnetic coupling method used in this technology is harmless to people and animals.
On June 8, 2007, 18, wireless power transmission technology progressed smoothly: a 60-watt light bulb was lit at 2 meters.
Researchers at the Massachusetts Institute of Technology announced that they lit a 60-watt light bulb at a distance of 2 meters through wireless transmission of electric energy. Scientists believe that this technology is expected to charge mobile phones and other portable appliances without connecting the power cord in the future. Related research articles were recently published on the website of Science magazine.
On June 3, 2007, the whole people entered a new era of energy conservation, and the second "1W forum" landed in Beijing.
The second China "1W Forum" with the theme of "Innovation Achievements 1W" sponsored by the Certification Center for Winning the Bid and co-organized by Anson Semiconductor was held recently. As an important activity of this year's National Energy Conservation Publicity Week, the 4th China Festival Expo and the 2007 Beijing International Energy Conservation and Environmental Protection Exhibition, the forum received strong support from the China Municipal Government, with the active participation of relevant departments, experts and scholars and well-known enterprises. Participants focused on the latest development and innovation of "1 tile plan".
On may 3rd, 2007, kloc-0, the energy efficiency of electric drive devices was improved, and the intelligent power module CiPoS came into being.
Infineon Technology has released a series of highly integrated intelligent power module products, which can be applied to various semiconductor components driving electronically controlled variable speed motors in the market. This new module, called CiPoS (Control Integrated Power System), is specially designed for consumer electronic products, which can provide efficient energy operation.
In May, 2007, 17, according to the statistics, 50 years of struggle made Fairchild a "leader" in the field of power semiconductors.
In 2007, Fairchild Semiconductor celebrated its long and rich history in the semiconductor industry. Fairchild Semiconductor was founded in 1957, and it has been 50 years, so this year is a memorable year.
On May 9th, 2007, the motor control chipset reduced the energy consumption in China.
The rapid development of industry and the growth of automobiles and household appliances in China have greatly increased the country's energy demand. The growth rate of demand exceeds the growth rate of supply. Popularizing energy-saving products can alleviate the imbalance between supply and demand of energy. The control of variable speed motor can save a lot of energy.
On May 7th, 2007, Luminary introduced the Stellaris microcontroller motion control reference design toolkit.
Luminary Micro announced the launch of two new Reference Design Toolkits (RDK), which utilize Stellaris microcontrollers specially designed by the company for motion control applications, such as HVAC systems, industrial conveying systems, liquid pumps, printers, robots, CNC and other precision machinery.
On April 30, 2007, committed to the breakthrough of electric power technology innovation, ST became the "pioneer of energy saving" forever.
Stmicroelectronics (ST) announced on April 22nd, Earth Day, that more than 250 million energy-saving products were sold in 2006. ST's energy-saving chips are widely used in various terminal products, such as lighting, white goods, entertainment electronics and so on.
On April 24, 2007, the energy-saving requirements of the server were met, and the new Aspen memory easily met the power consumption problem.
Micron Technology recently launched its latest Aspen Memory series of energy-saving products, which is a low-voltage DDR2 DRAM chip composed of RCC(reduced chip count) memory modules. These new products are specially designed to reduce the power consumption of servers.
On April 4th, 2007, taking stock of 50 years' achievements, Fairchild will continue to write about the future glory of power products.
In 2007, Fairchild Semiconductor celebrated its long and rich history in the semiconductor industry. Fairchild Semiconductor was founded in 1957 with a history of 50 years, so this year is very memorable.
On March 23rd, 2007, the design of power supply was completed, and Fairchild power products appeared in PCIM, China.
Fairchild Semiconductor recently demonstrated its recognized technical and design expertise at the China PCIM Exhibition held in Shanghai.
March 2007 14 Anhuagao's new LED is aimed at solid-state lighting applications, giving consideration to energy efficiency and high brightness.
Avago technologies introduced a 3W high-power white light surface mount LED product. Avago's new ASMT-MW20 power LED emitter can be driven at high current, providing lighting output up to 160 lumens, bringing high-brightness output light source with high energy efficiency and stability to portable, architectural, decorative and backlight application designers.
On March 9, 2007, the "Best Product of the Year" award of "Electronic Engineering Album" was announced, and Anson Mei won the crown.
ON Semiconductor, a supplier of power management solutions, announced that its NCP 1337 controller was awarded the "2007 Electronic Achievement Award" (ACE) and the "Best Product of the Year Award" in the power category by Electronic Engineering Album.
On March 8, 2007, Anson introduced four new series of power factor controllers.
Anson Semiconductor recently announced the expansion of its leading series of power factor correction (PFC) controllers, which are specially designed for lighting, power adapters, ATX power supplies, flat-panel TVs and other power applications. These four new devices can promote the development of high-efficiency power supply and meet the emerging global energy efficiency and power factor standards.
On February 13, 2007, Infineon announced its mid-term development plan for energy efficiency and other fields.
Dr Wolfgang Ziebart, President and CEO of Infineon, announced the company's medium-term goals. The company expects that the major restructuring work will be completed in 2007. After divesting the memory business, the new Infineon company will focus on three major areas in the future: energy efficiency, mobility and security. Ziebart summarized the company's medium-term goals with the theme of "Focus 10".
From June 5438 to October 30, 2007/kloc-0, it played the role of "energy-saving angel", and EcoSmart technology saved huge energy waste.
Power Integrations (PI), a supplier of high-voltage analog IC for power conversion, recently announced that its power conversion IC with EcoSmart energy-saving technology has saved consumers and enterprises around the world more than $2 billion.
June 5-438, 2007+10/October 25, 2007 Prospect of China RoHS: Challenges and Opportunities.
As the industry turns to greener design, the demand for product testing services will increase greatly. In this elite interview, we invited Mr. Zhang, the vice president in charge of business development and technical support department of Hong Kong Science and Technology Park, to discuss how RoHS will affect electronic design and manufacturing, and how our services will help manufacturers meet the new requirements of RoHS era.
In June 5438+February 65438+April 2006, the energy efficiency was improved, and Infineon used multi-gate technology to meet the challenge of miniaturization of integrated circuits.
Multi-gate field effect transistor technology is expected to become an ideal solution to various technical challenges brought about by miniaturization of integrated circuits.
In June 2006165438+1October 65438+May, Infineon introduced a new generation of MOSFET energy-saving devices to improve reliability and energy efficiency.
Infineon Technology recently released a new generation of power semiconductor products at the 2006 World Power System Exhibition, which are used for DC/DC converters in computers, telecommunications equipment and consumer electronics products. The new OptiMOS 3 30V N-channel MOSFET series can improve the reliability and energy efficiency of standard power products by 1%~ 1.3%, and reach the leading level in the main power conversion indexes such as on-resistance, power density and gate charge.
It is urgent to improve the energy efficiency of power supply equipment. On June 5438+065438+1October 4, 2006, Infineon OptiMOS3 should act in time.
Infineon Technology recently launched an innovative product, which can further improve the energy efficiency of power supply unit (PSU). At present, most of the electricity in the world flows into electrical equipment such as computers, televisions and consumer electronics products through PSU.
06165438+1October 14 Optimistic about the development prospect of new energy, Delta and ST join hands in solar technology.
Delta Power and its subsidiary DelSolar signed a memorandum of cooperation with stmicroelectronics on solar photovoltaic power generation system. The three companies will establish strategic partnerships in solar cell production, solar photoelectric converters and power-related products.
In June, 2006165438+1October, 65438+March, Hong Fei chose "Core" as the power supply, and LinkSwitch-LP series IC was officially shortlisted.
Hong Fei USA, a power supplier, and Power Integrations, a high-voltage analog IC supplier for power conversion, announced that Hong Fei chose LinkSwitch-LP series IC with EcoSmart energy-saving technology to design its PLA series linear canceller power supply.
Starting from June 2006 165438+ 10/3 power supply system, Infineon's energy efficiency improvement IC can save a power plant.
Infineon Technology released OptiMOS 3, an innovative solution, which can further improve the energy efficiency of power supply unit (PSU). According to Infineon's estimation, if all the computer server power systems in use are equipped with OptiMOS 3 to provide the best energy efficiency, the power generation of the whole 360 MW power plant will be saved.
On June 6th, 2006, 165438+ optimized the energy utilization rate of the factory, and Honeywell and FibrLINK joined hands to save energy.
Recently, Honeywell signed a five-year strategic cooperation contract with FibrLINK Communications, a network service provider in the energy industry. The signing of this contract will help China Energy Factory to improve energy efficiency and better meet China's growing energy demand and environmental policies.
On June 26th, 2006, 10, Chongmao obtained the American energy efficiency certification for the power supply scheme of the former ATX.
System General recently announced that its Forward) ATX power supply solution has officially passed the official certification of American 80 PLUS energy efficiency.
/10 2006 On June 25th, 2006, Infineon took HybridPACK as the core to improve the energy efficiency of the transmission system of hybrid electric vehicles.
Infineon Technology recently plans to adopt advanced electronic equipment to improve the energy efficiency of the transmission system of hybrid electric vehicles. The company showed these products at the Detroit Auto Show. Based on Infineon's power technology, the weight of automobile intelligent control system will be greatly reduced. Intelligent control system can optimize the use of fuel and electricity.
June 9, 2006 10, spear in right hand, shield in left hand, the survival rule of newly established IC design company changed?
Ambrose Electronics recently officially released its complete solutions for PWM AC/DC product line, PWM DC/AC product line and LCD TV/display power supply. From the beginning of the company's operation, it aimed at the high-end market, emphasized the patent strategy, and dealt with potential patent disputes in advance, which made Anbao Electronics look a little different. Does their practice mean that the survival rules of newly established IC design companies begin to change? What does this inspire many similar companies in Chinese mainland?
10 On June 8th, Fairchild Semiconductor introduced a DPAK SuperFET device for ballasts, which has low on-impedance.
Fairchild Semiconductor has recently developed a series of new 600V SuperFET MOSFET devices with low on-impedance, which are specially designed to meet the requirements of the latest DPAK(TO-252) devices for ultra-optical fiber small ballast applications.
On September 25th, 2006, Fujitsu frequency conversion technology led the energy-saving household appliances market.
At present, the development of energy-saving household appliances has become the focus of global attention. In the situation of calling for energy saving, frequency conversion technology has become the focus of attention.
On September 3, 2006 13, the Ni-MH battery for Kawasaki vehicle came on the scene strongly, and no extra charge was needed for driving within 10km.
Kawasaki Heavy Industries recently equipped the car-mounted nickel-hydrogen battery "GigaCell" on the tram, and conducted a battery-driven driving test in Hyogo factory, which was successful. Through this test, the basic performance of "GigaCell" to be mounted on "SWIMO" is confirmed, and it is confirmed that it can travel more than 10km without additional charging.
On September 7th, 2006, with the goal of energy saving and environmental protection, Honeywell formed a strategic alliance with CLP Hua Fei.
Honeywell announced today that it has signed a five-year strategic alliance agreement with CLP Hua Fei Communication Co., Ltd., a network service provider and power industry information solution provider. The agreement will help China Power Plant to improve its energy efficiency, reduce harmful emissions, and improve the operating efficiency of the power industry, so as to meet the growing energy demand in China and meet the requirements of environmental protection policies.
On August 18, 2006, USABC wanted to accelerate the development of electric vehicles, and the start-up joint venture company was ordered to develop HEV batteries.
Johnson controls -Saft recently won a two-year contract from the American Advanced Battery Alliance. According to the contract, johnson controls -Saft will invest in the development of advanced lithium-ion batteries for hybrid electric vehicles.
July 2006 18 Power Supply: Energy-saving regulations gave birth to power supply design, and IC scheme staged a performance competition.
This paper discusses the laws and regulations of energy saving under the global energy saving trend, and introduces some technical trends and solutions in improving power efficiency and reducing standby power consumption.
On July 6, 2006, the energy consumption index of white goods was locked, and Fairchild micro SPM series showed its talents.
Fairchild Semiconductor's intelligent power module (SPM) product series is specially designed for high-efficiency motor controllers of white goods with limited energy consumption indexes, such as washing machines and air conditioners, which can improve the energy efficiency of household appliances from 50% to 90%. Micro SPM can help inverter system designers to develop cost-effective design schemes and reduce the number of design components while ensuring reliability.
June 30, 2006 Shanghai Electronics Show in Munich: Power electronic devices are developing in the direction of energy saving and efficiency improvement.
Author: Yan Wang
June 30, 2006 Fairchild Semiconductor's new integrated PFC controller can greatly improve energy efficiency.
In order to meet the strict requirements of green standards faced by current design engineers, Fairchild Semiconductor has introduced a power factor correction (PFC) controller IC, which can reduce the standby power consumption of 320mW in the design of switching power supply (SMPS) below 250W, such as notebook computer adapters.
On June 30th, 2006, Power Integration Company demonstrated an innovative power conversion chip at IIC.
From March 10 to March1day, at 1 1 International Integrated Circuit Conference and Exhibition (China IIC) Shenzhen Station, Power Integrations will show its latest high-voltage power conversion IC.
On June 30th, 2006, the opening of CES in China is just around the corner, and Fairchild executives will discuss the power supply scheme.
Fairchild Semiconductor recently revealed that Guo Yu Liang, president of Fairchild Semiconductor Asia Pacific, will give a speech on energy efficiency at the International Consumer Electronics Industry Summit held in Qingdao, Shandong Province from July/KLOC-0 to July 2, 2005.