畢業(yè)論文外文翻譯--鋰電池充電器的設(shè)計-其他專業(yè)-展示頁
2025-01-31 05:07本頁面
【正文】 ages are true for cellular phones. A phone can be made smaller and lighter using LiIon batteries without sacrificing run time. As LiIon battery costs e down, even more applications will switch to this lighter and smaller technology. Market trends show a continual growth in all rechargeable battery types as consumers continue to demand the convenience of portability. Market data for 1997 shows that approximately 200 million cells of LiIon will be shipped, pared to 600 million cells of NiMH. However, it is important to note that three cells of NiMH are equivalent to one LiIon cell when packaged into a battery pack. Thus, the actual volume is very close to the same for both. 1997 also marked the first year LiIon was the battery type used in the majority of portable puters, displacing NiMH for the top spot. Data for the cellular market showed a shift to LiIon in the majority of phones sold in 1997 in Europe and batteries are an exciting battery technology that must be watched. To make sense of these new batteries, this design guide explains the fundamentals, the charging requirements and the circuits to meet these requirements. Along with more and more the emergence of the handheld electric appliances, to the high performance, baby size, weight need of the light battery charger also more Come more battery is technical to progress to also request continuously to refresh the calculate way more plicatedly is fast with the realization, safety of need Want to carry on the more accurate supervision towards refreshing the process, to shorten to refresh time and attain the biggest battery capacity, and prevent176。from the battery AVR has already led the one step in the petition, is prove is perfect control chip of the next generation charger. The microprocessor of Atmel AVR is current and can provide Flash, EEPROM and 10 ADCses by single slice on the market Of 8 RISC microprocessors of the tallest the saving machine of procedure is a Flash, therefore can need not elephant MASK ROM Similar, have a few software editions a few model numbers of Flash can carry on again to weave the distance before deliver goods, or in the PCB Stick after pack carry on weaving the distance through an ISP again, thus allow to carry on the software renewal in the last one EEPROM can used for conservancy mark certainly coefficient and the battery characteristic parameter, such as the conservancy refreshes record with the battery that raise the actual usage A/ Ds conversion machine can provide the enough diagraph accuracy, making the capacity of the good empress even near to its biggest capacity. And other project for attaining this purpose, possible demand the ADC of the exterior, not only take up the space of PCB, but also raised the system Cost. The AVR is thus deluxe language but 8 microprocessors of the designs of unique needle object C AT90S4433 reference The design is with C to write, the elucidation carries on the software design39。Weakness is from turn on electricity the rate battery of NiCd of the typical model can refresh 1,000 expired mechanism mainly is a pole to turn first in the battery pack drive unit that all turn on electricity will take place the prevent176。 lead to refresh and will result in batter
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