Today, people are closely linked through electronic products, electronic products and each has a function more and more. As the demand for a different way of life, as well as requiring electronic products must have the function of the Internet, wired or wireless transmission media, as well as the ability to carry out a large number of different applications for data processing. For example, you can only willing to carry a dialogue without music, video, games, e-mail, pictures, and storage features of the phone you? Stage, we can see that has a camera and even more advanced features of the phone. Since each electronic products or equipment to increase the number of features, laptop battery power, density and volume also increased. This gives us the living environment of a large amount of energy consumption, waste of energy, as well as the hundreds of millions of discarded batteries can not be recovered. If not handled properly, will be to our great harm to the environment. To solve this problem, we do not need to waste energy, or energy, each of the functions of electronic products designed for low energy efficiency. Of course, we do not want to limit the functions of electronic products, but we can-the-art design, technology, system components as well as the framework for better integration of energy conversion and reduce power consumption. The following presentation on the direction of efforts in this regard.
Design
From the design point of view, whether in the chip level or board level, through the use of energy-saving technologies and power systems with a variety of modes of operation of the process to minimize the function, and is not expected or required at the expense of the quality of output (regardless of What are the requirements). Let us take the phone, for example, may be at different levels to save electricity, see table 1.
Technology
In this context, technology plays an important role, involving every device or equipment for a specified function or performance, how the effective use of power. For example, the chip manufacturing process of IC will determine what kind of voltage operation, each of the devices (transistors, logic gates, and so on) how to work a minimum of power. The transistor, we will consider the device gain. If the MOSFET, for example, we have to consider what Vgs the output intensity of what’s Ids. In addition, the consumption may be considered valuable and the loss of power and parasitic leakage. For example, when the turn-on transistor, FET will Rdson the instructions on how conductive loss. The current flowing through this resistance will be transformed into heat energy, equipment for the loss of power output is concerned.
Freescale pioneered the use of technology SMARTMOSTM achieved excellent results. The technology of high power output can be optimized and the key demand for portable devices, such as low leakage and low Rdson with high accuracy and good performance.
Devices / building block
Whether active or passive device, working in the state, will have a loss of power. For example, the capacitor will have a series resistance (ESR), it will be converted into heat loss, and inductors will have a DC resistance (DCR), it will constitute a line or system losses. Faraday tells us that in an ideal situation, the equipment will not be lost, but the reality is that anything is not ideal. Even without resistance is also a component of non-ideal, it would constitute a loss. For example, the step-down converter in the FET switch is turned off, diode flow requirements of a continued bias toward the adoption so that the flow of current. The pressure drop through the diode would constitute a loss as a result it does not have a power output of any contribution, but only so that the output current flows. Similarly, LED bias towards the need to open it for some color LED, this value may be as high as 4V. Fortunately, with advances in technology, these characteristics are more and more unpopular smaller. As the package and the formation of inductors and capacitors has made progress in reducing parasitic, which may ESR or reduce the DCR. If the LED is now lower Schottky diodes bias toward the production, and thus more output voltage can be used. Similarly, LED bias is also getting smaller and smaller.
Pollution in the environment, which may not be used in devices than portable devices (digital cameras or mobile phones) battery is even more worrying. Now we are in accordance with the standards of consumption, will be a year away billions of batteries. Once a depleted Dell battery , in respect of the termination of their life, will be thrown away if there is no proper disposal, including the acid and toxic chemicals will be harmful to the environment. In essence, that we will have a direct environmental harm, and said in front of the power loss and is parasite indirect harm. Nevertheless, as human beings we need ever-increasing functionality, as well as the low efficiency of energy use, fuel cell waste. Now we can see that the battery manufacturers to adopt advanced production technology for longer battery life. For example, 20 years ago, most of the NiMH battery is a battery instead of lithium batteries (Li ion), and battery unit of energy than today’s much lower. Now lithium batteries or lithium polymer batteries in portable devices such as cell phones widely used. People have begun to introduce more advanced, under the same conditions with a higher energy density, longer battery life. From portable electronic devices triggered by the battery technology for the next wave of its main characters Iron-Li-ion (FeLi) batteries. These fast battery charging, long life and a safer, higher capacity storage units. Another technology that is currently highly sought after fuel cell, the battery more environmentally friendly, without charge, as long as the supply of hydrogen fuel can provide energy. In fact, it is speeding up the development of portable applications for RFID (radio frequency identification) of the fuel cell, and strive to make it to market as quickly as possible. In addition, government and professional bodies such as the US Fuel Cell Council, or the fuel cell industry associations are also established in the United States and is committed to the development of fuel cell and universal.
Finally, I come to the end in order to display the list of building blocks, many large and small companies, scientists and engineers try to launch the province more power display. If you look at electronics, the human interface is the most direct display. You need to visit the display, play games, view or you are writing or control the content, or you want to enter the running. This is also a digital camera or cell phone LCD displays increasing, more and more high-resolution color. This also lead to more power consumption and battery consumption. In order to resolve this conflict, came into the Bi-stable display technology can power consumption need not show that picture content. We have seen in Japan as e-books e-books are already using this technology. The technology need not show that power has been shown in the picture, but do not have forever. Only to be replaced or refreshed when power consumption. Moreover, with its reflective light means no need for backlighting, only ambient light on it. This is in sharp contrast to traditional displays, such as STN, LED, or LCD’s electrical energy needs in a row to visit or stay in the picture screen. The new technology will enable end products lighter weight and can run very low energy, which means that more energy can be saved, to make our environment more environmentally friendly. The best technology is no need to change the frequent display of the content of the application, such as eBook, or electronic timetable for the airport and railway station. The technology is also widely known as the ePaper display (EPD), or eInk radio show.
