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Surface

Surface是美國微軟公司推出的全新硬件品牌，微軟公司于2012年6月19日發布了Surface系列平板電腦。這款平板電腦采用鎂合金機身10.6英寸顯示屏，配備USB2.0或3.0接口，使用Windows8操作系統。微軟官網將其稱為“全高清顯示屏”，屏幕比例為16:9。這款產品分為兩個版本：一個使用Windows8專為ARM設計的版本WindowsRT；另一個使用英特爾Corei5IvyBridge處理器，使用Windows8Pro。2012年10月26日，中國市場由蘇寧全球同步首發微軟Surface。

SCATTERING, RADIATION AND PROPAGATION OVER TWO-DIMENSIONAL RANDOM Surface,小倉老師關于隨機泛函博散射的專著

SCATTERING, RADIATION AND PROPAGATION OVER TWO-DIMENSIONAL RANDOM Surface,小倉老師關于隨機泛函博散射的專著，除在日本京都大學作為教科書資料外，此文章作為一個章節撰寫在1996年的PIER(電磁研究進展)14的第三章。

標簽： TWO-DIMENSIONAL PROPAGATION SCATTERING RADIATION

上傳時間： 2013-12-20

上傳用戶：pompey
是英文 “ Surface mount technology ”的縮寫。即表面安裝技術

是英文 “ Surface mount technology ”的縮寫。即表面安裝技術，這是一種較傳統的安裝方式。其優點是可靠性高，缺點是體積大，成本高，限制 LCM 的小型化。是英文 “ Chip On Board ”的縮寫。即芯片被邦定(Bonding)在PCB上，由于IC制造商在LCD控制及相關芯片的生產上正在減小QFP（ SMT 的一種）封裝的產量，因此，在今后的產品中傳統的 SMT 方式將被逐步取代。

標簽： technology Surface mount 英文

上傳時間： 2016-10-08

上傳用戶：nairui21
In this program we calculate the scattering field of a infinite rectangular Surface. I use Physical

In this program we calculate the scattering field of a infinite rectangular Surface. I use Physical Optic method and compare the result with exact solution.

標簽： rectangular scattering calculate Physical

上傳時間： 2014-01-19

上傳用戶：362279997
Bezier Surface in c. Without compiler. This is very good - I think.

Bezier Surface in c. Without compiler. This is very good - I think.

標簽： c. compiler Surface Without

上傳時間： 2017-09-08

上傳用戶：litianchu
VGA 8:1 multiplexer reference

This reference design (RD) features a fullyassembled and tested Surface-mount printed circuitboard (PCB). The RD board utilizes the MAX48851:2 or 2:1 multiplexer and other ICs to implement acomplete video graphics array (VGA) 8:1multiplexer.VGA input/output connections are provided to easilyinterface the MAX4885 RD board with VGAcompatibledevices. The RD board gives the optionto use a single 5V DC power supply (V+), or this RDboard can be powered from any one of the eight VGA sources.

標簽： multiplexer reference VGA

上傳時間： 2013-11-09

上傳用戶：ANRAN
多層印制板設計基本要領

【摘要】本文結合作者多年的印制板設計經驗，著重印制板的電氣性能，從印制板穩定性、可靠性方面，來討論多層印制板設計的基本要求。【關鍵詞】印制電路板；表面貼裝器件；高密度互連；通孔【Key words】Printed Circuit Board；Surface Mounting Device；High Density Interface；Via一．概述印制板（PCB－Printed Circuit Board）也叫印制電路板、印刷電路板。多層印制板，就是指兩層以上的印制板，它是由幾層絕緣基板上的連接導線和裝配焊接電子元件用的焊盤組成，既具有導通各層線路，又具有相互間絕緣的作用。隨著SMT（表面安裝技術）的不斷發展，以及新一代SMD（表面安裝器件）的不斷推出，如QFP、QFN、CSP、BGA（特別是MBGA），使電子產品更加智能化、小型化，因而推動了PCB工業技術的重大改革和進步。自1991年IBM公司首先成功開發出高密度多層板（SLC）以來，各國各大集團也相繼開發出各種各樣的高密度互連（HDI）微孔板。這些加工技術的迅猛發展，促使了PCB的設計已逐漸向多層、高密度布線的方向發展。多層印制板以其設計靈活、穩定可靠的電氣性能和優越的經濟性能，現已廣泛應用于電子產品的生產制造中。下面，作者以多年設計印制板的經驗，著重印制板的電氣性能，結合工藝要求，從印制板穩定性、可靠性方面，來談談多層制板設計的基本要領。

標簽： 多層印制板

上傳時間： 2013-11-19

上傳用戶：zczc
計算FR4上的差分阻抗(PDF)

Calculation of the Differential Impedance of Tracks on FR4 substrates There is a discrepancy between calculated and measured values of impedance for differential transmission lineson FR4. This is especially noticeable in the case of Surface microstrip configurations. The anomaly is shown tobe due to the nature of the substrate material. This needs to be considered as a layered structure of epoxy resinand glass fibre. Calculations, using Boundary Element field methods, show that the distribution of the electricfield within this layered structure determines the apparent dielectric constant and therefore affects theimpedance. Thus FR4 cannot be considered to be uniform dielectric when calculating differential impedance.

標簽： FR4 計算差分阻抗

上傳時間： 2014-12-24

上傳用戶：DE2542
基于FPGA的高度集成DCDC穩壓器

In a recent discussion with a system designer, the requirementfor his power supply was to regulate 1.5Vand deliver up to 40A of current to a load that consistedof four FPGAs. This is up to 60W of power that must bedelivered in a small area with the lowest height profi lepossible to allow a steady fl ow of air for cooling. Thepower supply had to be Surface mountable and operateat high enough effi ciency to minimize heat dissipation.He also demanded the simplest possible solution so histime could be dedicated to the more complex tasks. Asidefrom precise electrical performance, this solution had toremovethe heat generated during DC to DC conversionquickly so that the circuit and the ICs in the vicinity do notoverheat. Such a solution requires an innovative designto meet these criteria:

標簽： FPGA DCDC 集成穩壓器

上傳時間： 2013-11-24

上傳用戶：defghi010
LTM4601 DC/DC微型模塊性能

The LTM4601 DC/DC μModule regulator is a completehigh power density stepdown regulator for up to 12Acontinuous (14A peak) loads. The device is housed ina small 15mm ¥ 15mm ¥ 2.8mm LGA Surface mountpackage, thus the large power dissipation is a challengein some applications. This thermal application note willprovide guidelines for using the μModule regulator inambient environments with or without air fl ow. Loadcurrent derating curves are provided for several inputvoltages and output voltages versus ambient temperatureand air fl ow.

標簽： 4601 DC LTM 微型模塊

上傳時間： 2013-10-19

上傳用戶：bakdesec
LTM4600 DCDC微型模塊熱性能

The LTM4600 DC/DC μModule regulator is a complete highpower density stepdown regulator for 10A continuous (14Apeak) loads. The device has two voltage options: 20VINmaximum for the LTM4600EV and 28VIN maximum for theLTM4600HVEV each housed in a small 15mm ¥ 15mm ¥2.8mm LGA Surface mount package.

標簽： 4600 DCDC LTM 微型模塊

上傳時間： 2013-10-10

上傳用戶：adada

亚洲欧美第一页_禁久久精品乱码_粉嫩av一区二区三区免费野_久草精品视频

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Surface

SCATTERING, RADIATION AND PROPAGATION OVER TWO-DIMENSIONAL RANDOM Surface,小倉老師關于隨機泛函博散射的專著

是英文 “ Surface mount technology ”的縮寫。即表面安裝技術

In this program we calculate the scattering field of a infinite rectangular Surface. I use Physical

Bezier Surface in c. Without compiler. This is very good - I think.

VGA 8:1 multiplexer reference

多層印制板設計基本要領

計算FR4上的差分阻抗(PDF)

基于FPGA的高度集成DCDC穩壓器

LTM4601 DC/DC微型模塊性能

LTM4600 DCDC微型模塊熱性能