SINGLE
65286
-/21+
全新原裝現(xiàn)貨,長期供應(yīng),免費(fèi)送樣
SINGLE
5000
N/A/24+
優(yōu)勢渠道現(xiàn)貨,提供一站式配單服務(wù)
SINGLE
80000
-/23+
原裝現(xiàn)貨
SINGLE
5000
N/A/23+
優(yōu)勢產(chǎn)品大量庫存原裝現(xiàn)貨
SINGLE
225080
N/A/2016+
原裝現(xiàn)貨長期供應(yīng)
SINGLE
6608
N/A/2024+
現(xiàn)貨假一罰萬只做原裝現(xiàn)貨
SINGLE
3000
N/A/N/A
原裝正品熱賣,價格優(yōu)勢
SINGLE
80000
-/23+
原裝現(xiàn)貨
SINGLE
25000
-/2024+
原廠原裝現(xiàn)貨庫存支持當(dāng)天發(fā)貨
SINGLE
1054
2016+/N/A
代理直銷,公司原裝現(xiàn)貨供應(yīng)
SINGLE
80000
-/2024+
原裝現(xiàn)貨
SINGLE
2000
N/A/25+
只做原裝,支持賬期,提供一站式配單服務(wù)
SINGLE
228000
NR/2017+
誠研翔科技,配單公司,可開增值稅發(fā)票
SINGLE
5240
N/A/21+
中研正芯,只做原裝
SINGLE
60701
N/A/24+
深圳原裝現(xiàn)貨,可看貨可提供拍照
SINGLE
41101
N/A/-
大量現(xiàn)貨,提供一站式配單服務(wù)
SINGLE
228000
NR/2017+
誠研翔科技,專業(yè)配單公司,可開增值稅發(fā)票
SINGLE
5000
N/A/22+
一站式配單,只做原裝
SINGLE
8000
N/A/22+
原裝現(xiàn)貨,配單能手
SINGLE
23412
N/A/23+
提供一站式配單服務(wù)
) 參考文獻(xiàn):[1]w.f. knippenberg, growth phenomena in silicon carbide. philips research reports, 1963,18:16~274.[2]j.a. lely,ber. dent. keram..ges,1955,28:229.[3]yu. m. tairov, v. f. tsvetkov. investigation of growth processes of ingots of silicon carbide single crystals . journal of crystal growth, 1978,43:209~212.[4]yu. m. tairov, v. f. tsvetkov. general principles of growing largesize single crystals of various silicon carbide polytypes. . journal of crystal growth, 1981,52: 146~150.[5]dieter h. hofman,
測量的差值。在di階段,通常前一(隊(duì)列基準(zhǔn))層的box(或bars)都會被覆上一層薄膜(疊層),然后成型于接下來的蝕刻階段。在覆膜、干擾或其它操作步驟中可能存在的不對稱因素將會導(dǎo)致失敗的或有干擾的overlay測量結(jié)果。而且由于fi階段的overlay是清晰的,有明確定義,而且很容易對比,因此考慮以fi overlay為可靠的基準(zhǔn)層。為了驗(yàn)證這一基準(zhǔn)的有效性,充分利用了kla5200xp提供的各種度量方法來測量fi overlay,同時記錄了測量焦距對overlay結(jié)果的影響。圖2中,列出了采用single focus(單焦距)方法,即kla5200xp上的“singlegrab”所獲得的poly gate層的標(biāo)準(zhǔn)overlay數(shù)據(jù)。為了擴(kuò)大比例,同時為了使overlay對聚焦功能的變化更為敏感,將其每個點(diǎn)的標(biāo)準(zhǔn)overlay定義為在零聚焦條件下為零。圖中的9條線分別對應(yīng)于晶圓上的9個測量點(diǎn),測試結(jié)果是在焦距變化范圍為±500nm的條件下得出的。通過圖示,可以觀察到對于每個測量點(diǎn),overlay數(shù)據(jù)隨測量焦距的變化僅產(chǎn)生1-2nm的變化,即overlay是不依賴于焦距而變化的。圖3列出了采用兩種測
e. the fast slew rate current regulator allows high frequency and narrow pulse width dimming signals to achieve a very high contrast ratio of 1000:1 at a dimming frequency of more than 3 khz. the led current is programmable from 50 ma to 200 ma by a single resistor. to maximize the efficiency, dynamic headroom control (dhc) automatically adjusts the output voltage to a minimum. dhc also facilitates a single bom for different number of led in a string, which is required for backlight panels of diffe
coder bcd轉(zhuǎn)十進(jìn)制譯碼器cd4029 presettable binary/decade up/down counter 可預(yù)置二/十進(jìn)制加減計數(shù)器mc14046 phase locked loop 90度相位比較器cd4049 hex buffer/converters(inverting) 六緩沖反向器cd4050 hex buffer/converters(non-inverting) 六緩沖器cd4051 single 8-channel analog multiplexer/demultiplexer 8通道模擬開關(guān)mc14051 single 8-channel analog multiplexer/demultiplexer 8通道模擬開關(guān)cd4052 single 4-channel analog multiplexer/demultiplexer 4通道模擬開關(guān)cd4053 single 2-channel analog multiplexer/demult
pretty small and the pcb has been designed to fit into a teko "soap" box.it features a 84*48 pixel graphical lcd display, similar to the displays used on nokia 3310 cell phones. it's designed to operate from rechargable battery cells, either from a single 3.6v li-ion cell (recommended), or from 3*1.2v ni-mh cells. with a 600 ma li-ion cell, the playing time is about 12 hours, but you can find li-ion cells up to 1200 mah that will fit in the player, extending the playing time to about 24 hours.it's in
大宇冷卻扇電路(SINGLE FAN:1.5DOHC M/T車輛)電路圖
大宇冷卻扇電路(SINGLE FAN:1.5DOHC M/T車輛)插頭模樣及單子編號電路圖 amd desktop processor core roadmap 2006 processor socket core name launch date athlon fx am2 dual windsor 1h'06 athlon 64 x2 am2 dual windsor 1h'06 athlon 64 x2 am2 dual brisbane 1h'07 athlon 64 am2 single orleans 1h'06 sempron am2 single manila 1h'06 sempron am2 single sparta 2h'07 我們可以看到在amd的處理器核心方面,現(xiàn)在還沒有提到四核產(chǎn)品,windsor、orleans、mannia為首批am2處理器,代替原來的socket 754、939產(chǎn)品。2007年問世的brisbane會是首批采用65nm工藝的amd處理器,繼承am2接口,2007年下半年每一個檔次的處理器都將采用 處理器roadmap processor 插槽 core name 發(fā)布日期 athlon fx am2 dual windsor 1h'06 athlon 64 x2 am2 dual windsor 1h'06 athlon 64 x2 am2 dual brisbane 1h'07 athlon 64 am2 single orleans 1h'06 sempron am2 single manila 1h'06 sempron am2 single sparta 2h'07 到目前為止,藍(lán)圖還沒有顯示amd的四核心處理器,windsor、orleans和manila是amd第一批am2處理器,將取代老的socket 754和939型號。在2007年,brisbane將是amd第一款采用65nm制程的am2處理器。在2007 與運(yùn)營商密切合作,發(fā)揮自己的技術(shù)與價格雙重優(yōu)勢,滿足大t的需求,并進(jìn)行創(chuàng)新,這就是最重要的戰(zhàn)略。華為一直以來做得非常到位,這也是華為能走到電信設(shè)備供應(yīng)商第二名位置的核心原因。 跟進(jìn)者華為,一度進(jìn)行的是“土狼與獅子的戰(zhàn)爭”,面對強(qiáng)大數(shù)倍于自己的對手,面對跨國電信設(shè)備制造商,華為進(jìn)行的是艱苦卓絕的戰(zhàn)斗,并取得了今日的勝利。 幾年前,曾有華為的競爭公司負(fù)責(zé)人說道:“如果華為認(rèn)準(zhǔn)了一個方向,集中所有資源去做一件事,那會是其對手的噩夢?!痹陔娦旁O(shè)備市場不斷地創(chuàng)新,讓華為推出了自身的single解決方案。 華為的single戰(zhàn)略指的是,通過全ip平臺,實(shí)現(xiàn)無線、固定寬帶、城域網(wǎng)、ossbss等網(wǎng)絡(luò)組織部分的平臺化,從而支持不同技術(shù)體制的設(shè)備。余承東表示,single戰(zhàn)略將使運(yùn)營商在下一個十年告別所謂的2g3g4g網(wǎng)絡(luò)演進(jìn),一套硬件設(shè)備滿足下一個十年的運(yùn)營商需求。 成也蕭何,“敗”也蕭何。先進(jìn)的電信設(shè)備解決方案讓運(yùn)營商選擇了華為,但正是如此先進(jìn)的設(shè)備也讓華為無法再在運(yùn)營商市場挖掘出以往的增長速度。 不僅如此,就算沒有華為的single戰(zhàn)略,也可以會有其他電信設(shè)備制造商的 1日的「日本平面顯示器展」(fpd international 2008)中,奇美電子(cmo)將發(fā)表最新的液晶面板技術(shù),以具環(huán)保特性的「led背光源」為開發(fā)基礎(chǔ),展現(xiàn)其最新「高影像質(zhì)量」、「節(jié)能」、「薄型化及輕量化」等技術(shù)成果,連帶呼應(yīng)了本次顯示器展的「ambient and green」綠色環(huán)保主題。 奇美展示的重點(diǎn)包括有:vivid motion;milli-power;區(qū)域調(diào)光(local dimming);fresco tv;46吋tv面板;電泳顯示(epd);觸控技術(shù);5道光罩single gap半透式技術(shù)(5-masks single gap trlcd);非晶硅2.8吋vga lcd等。 vivid motion技術(shù)是動畫影像質(zhì)量改善技術(shù),動態(tài)反應(yīng)時間(mprt)僅3毫秒。奇美電子今年將顯示頻率從主流的120hz提升到240hz,并搭配白光led掃描式背光技術(shù),使mprt表現(xiàn)降至3毫秒,成功將lcd動畫質(zhì)量超越crt,顯示動畫時畫面清晰程度與靜態(tài)幾乎相同。 milli-power技術(shù)是led背光面板節(jié)能技術(shù)的再突破,最高可再節(jié)能80%,運(yùn)用在15.6吋面板上,最低 31日的“日本平面顯示器展”(fpd international 2008)中,奇美電子(cmo)將發(fā)表最新的液晶面板技術(shù),以具環(huán)保特性的“l(fā)ed背光源”為開發(fā)基礎(chǔ),展現(xiàn)其最新“高影像質(zhì)量”、“節(jié)能”、“薄型化及輕量化”等技術(shù)成果,連帶呼應(yīng)了本次顯示器展的“ambient and green”綠色環(huán)保主題。 奇美展示的重點(diǎn)包括有:vivid motion;milli-power;區(qū)域調(diào)光(local dimming);fresco tv;46tv面板;電泳顯示(epd);觸控技術(shù);5道光罩single gap半透式技術(shù)(5-masks single gap trlcd);非晶硅2.8vga lcd等。 vivid motion技術(shù)是動畫影像質(zhì)量改善技術(shù),動態(tài)反應(yīng)時間(mprt)僅3毫秒。奇美電子今年將顯示頻率從主流的120hz提升到240hz,并搭配白光led掃描式背光技術(shù),使mprt表現(xiàn)降至3毫秒,成功將lcd動畫質(zhì)量超越crt,顯示動畫時畫面清晰程度與靜態(tài)幾乎相同。 milli-power技術(shù)是led背光面板節(jié)能技術(shù)的再突破,最高可再節(jié)能80%,運(yùn)用在15.6濟(jì)姘逕希?最低平截至2007年下半年AMD處理器完整路線圖
絕對曝光 2006年AMD處理器藍(lán)圖完全版
華為成電信設(shè)備供應(yīng)商老大指日可待
講究環(huán)保奇美在日發(fā)表新顯示技術(shù)
映綠色風(fēng)潮奇美電子在日發(fā)表新顯示技術(shù)
20世紀(jì)90年代以來,個人計算機(jī)、低端打印機(jī)、家用電器等,也有不少200 w以下的小功率開關(guān)電源采用單級有源pfc轉(zhuǎn)換器,如圖1(b)所示。其基本思路是將pfc整流器和負(fù)載轉(zhuǎn)換器集成,共用有源開關(guān)管等元器件。單級pfc轉(zhuǎn)換器的主電路內(nèi)部有隔離變壓器和儲能電容器cb,兼有輸入電流整形(或功率因數(shù)校正)和輸出電壓調(diào)節(jié)的功能。只用一個開關(guān)管和一個控制器的單級pfc轉(zhuǎn)換器,稱為單級單管s4(single ̄stage single-switch)pfc轉(zhuǎn)換器(或籮輸人電流整形器)。單級pfc轉(zhuǎn)換器的最大優(yōu)點(diǎn)是減少了元器件數(shù)量和成本,其主要性能(如thd或功率因數(shù))不如有源pfc兩級轉(zhuǎn)換器好,但優(yōu)于無源pfc電路的性能。雖然如此,由于iec1000-3-2對電子設(shè)備的pf值并沒有嚴(yán)格的規(guī)定,因此即使pf值小于0.9,只要單級pfc轉(zhuǎn)換器滿足對電流諧波的含量即可。 圖1 加pf校正的ac/dc電源 來源:lover
單邊帶調(diào)制電路圖如圖所示。 單邊帶 - single side band的縮寫,就是使用電波波形的一半接收,比如用上邊帶或者下邊帶 usb lsb,剩下那一半波形因?yàn)樾螤钍呛湍且话雽ΨQ的,所以可以用接收機(jī)補(bǔ)全,通俗的說就是照貓畫虎,上邊帶和下邊帶通訊統(tǒng)稱單邊帶ssb。 單邊帶是效率最高的語音通信方式,頻帶占用只有am的一半,效率理論上是am的四倍,但設(shè)備復(fù)雜。 來源:陰雨
ateur radio or any other form of radio. the features of this project are: higher output power - 150mw min (at 9v) and 300mw+ (at 12.5v) very pure output signal due to carefull design and filtering varicap modulation - possiblity to add a synthesiser single sided printed circuit board, only 40mm x 72mm covers the domestic fm band - 88mhz to 108mhz easy to build, but coil winding experience is required note - this project is illegal to use or build in many countries. i accept no responsibility what-so-e
modules are designed to do this. although they will work with the existing instant zone, they are intended to replace it. when a zone is activated, its red led will light and remain lit until the reset button is pressed. all the modules can share a single reset button. the stripboard layout of the prototype is available. imgload(document.getelementbyid("bodylabel"));
pretty small and the pcb has been designed to fit into a teko "soap" box. it features a 84*48 pixel graphical lcd display, similar to the displays used on nokia 3310 cell phones. it"s designed to operate from rechargable battery cells, either from a single 3.6v li-ion cell (recommended), or from 3*1.2v ni-mh cells. with a 600 ma li-ion cell, the playing time is about 12 hours, but you can find li-ion cells up to 1200 mah that will fit in the player, extending the playing time to about 24 hours it"s in
3-wire, 和spi 協(xié)議的串行eeprom器件的領(lǐng)先提供者,它的存儲容量從1k 位通過1m 位, 電壓從1.8v 到5.5v, 有符合工業(yè)標(biāo)準(zhǔn)pdip, soic, 和tssop 封裝和創(chuàng)新的節(jié)省空間的:lap,map,tap和dbga封裝。 at24c01a automotive 1kbit, 2-wire bus serial automotive eeprom with full memory write protect, supports up to 8 devices on single 2-wire bus. at24c02 automotive 2kbit, 2-wire bus serial automotive eeprom with full memory write protect, supports up to 8 devices on single 2-wire bus. at24c04 automotive 4kbit, 2-wire bus serial automotive eeprom with full memory write protect
如果是輸出pwm,用單片機(jī)或者振蕩電路就可以了。如果是選擇buck變換器,下面有很多種。 isl6525 -- buck and synchronous-rectifier pulse-width modulator (pwm) controller isl8105 -- 1v to 12v single-phase synchronous buck converter pwm controller with integrated mosfet gate drivers isl8105a -- 1v to 12v single-phase synchronous buck converter pwm controller with integrated mosfet gate drivers isl6522a -- buck and synchronous rectifier pulse-width modulator (pwm) controller isl6520b -- single synchronous buck pulse-width modu
intersil isl8471x pin to pin replacemanufacturer manufacturer's part no intersil part no status x type product descriptionmaxim max4711 isl43140ir active f/e analog switch, spst, quad, nclosed, ron = 50 @, single or dual supply, ±2v to ±6v or +2v to +12v, ron matchedmaxim max4712 isl43141ir active f/e analog switch, spst, quad, nopen, ron = 50, single and dual supply, ±2v to ±6v or +2v to +12v, ron matchedmaxim max4713 isl43142ir active f/e a
base-fx converter 千兆以太網(wǎng)芯片(giga switch/nic) tc9204m:4 ports 10/100/1000mbps smart ethernet switch contro tc9020: 32bit pci 10/100/1000mbps ethernet mac controller xte-2402g: 24 10/100m + 2g hard segment ethernet switch ip1000a:gigabit ethernet nic single chip ip1000m:gigabit ethernet nic single chip tc9205m:5ports 10/100/1000 smart ethernet switch controller xts-4802g: 48n + 2g ethernet switch controller xts-242g: 24n + 2g ethernet switch controller ip1001--10/100/1000m single phy lan以太網(wǎng)芯片(lan switc
base-fx converter 千兆以太網(wǎng)芯片(giga switch/nic) tc9204m:4 ports 10/100/1000mbps smart ethernet switch contro tc9020: 32bit pci 10/100/1000mbps ethernet mac controller xte-2402g: 24 10/100m + 2g hard segment ethernet switch ip1000a:gigabit ethernet nic single chip ip1000m:gigabit ethernet nic single chip tc9205m:5ports 10/100/1000 smart ethernet switch controller xts-4802g: 48n + 2g ethernet switch controller xts-242g: 24n + 2g ethernet switch controller ip1001--10/100/1000m single phy lan以太網(wǎng)芯片(lan switc