TRANSISTOR
5000
TO89/25+
提供BOM一站式配單服務
TRANSISTOR
5000
TO89/24+
華為超級供應商，7*24小時技術(shù)支持，一站式服務
TRANSISTOR
12260
ST223/23+
高品質(zhì) 優(yōu)選好芯
TRANSISTOR
3180
23+/ST223
特價原裝現(xiàn)貨，一站配齊
TRANSISTOR
65286
-/21+
全新原裝現(xiàn)貨，長期供應，免費送樣
TRANSISTOR
46620
SOT89/21+
低價出售原裝現(xiàn)貨可看貨假一罰十
TRANSISTOR
5000
ST223/24+
優(yōu)勢渠道現(xiàn)貨,提供一站式配單服務
TRANSISTOR
80000
-/23+
原裝現(xiàn)貨
TRANSISTOR
5000
ST223/23+
優(yōu)勢產(chǎn)品大量庫存原裝現(xiàn)貨
TRANSISTOR
25850
TO89/16+
原裝現(xiàn)貨長期供應
TRANSISTOR
5000
ST223/23+
原裝庫存，提供優(yōu)質(zhì)服務
TRANSISTOR
6608
ST223/2024+
現(xiàn)貨假一罰萬只做原裝現(xiàn)貨
TRANSISTOR
9200
TO89/23+
只做原裝更多數(shù)量在途訂單
TRANSISTOR
3000
ST223/10+
原裝正品熱賣，價格優(yōu)勢
TRANSISTOR
80000
-/23+
原裝現(xiàn)貨
TRANSISTOR
10000
TO89/25+
提供一站式配單服務
TRANSISTOR
526
ST223/24+
只做原裝,專注海外現(xiàn)貨訂購20年
TRANSISTOR
21403
ST223/23+
原裝現(xiàn)貨，長期供應
TRANSISTOR
80000
-/2024+
原裝現(xiàn)貨
TRANSISTORS
Letter Symbols - Transistors(12.15 k...
ETC
TRANSISTORSPDF下載
ctric memories〔j〕.science,1989,246：1400～1405.〔2〕 geideman w a.progress in ferroelectric memory technology〔j〕ieee trans ultrason ferroelectron freq control,1991,38:704～741.〔3〕 wu y s.a new ferroelectric memory device,metal-ferroelectric-semiconductor transistor〔j〕.ieee trans electron dev，1974,ed-21：499～504.〔4〕 kalkur t s,kulkarni j,lu y c，et al .metal-ferroelectric-semiconductor characteristics of bit thin film on silicon 〔j〕 . ferroelectrics,1991,116：135～146.〔5〕 brown a r,pomp a, de leeuw d m,et al.precur
驅(qū)動器相比，封裝由dip22（27.81×9.02×5.33mm）→dip16-d2 （19.18×6.35×5.33mm），減少了52%；emp24（15.4×10.3×2.5mm）→emp16-d2（10.3×10.3×2.5mm），減少了33％。在采用奇數(shù)個直流電動機時能更節(jié)省空間。 此外，njm2675采用了60v耐壓設計，動作電壓范圍為4～55v，能夠靈活適應5v、12v、24v、48v等多種電源電壓需求，有助于簡單化設計，可降低設計人員的負擔。 更進一步，因為采用了ttl（transistor transistor logic）互換級的邏輯輸入，可使用微型計算機等進行控制，不僅適用于電壓驅(qū)動，還適用于pwm電流驅(qū)動，同樣可以實現(xiàn)正反轉(zhuǎn)切換、制動功能。 njm2675 ① 控制方式采用3輸入邏輯(in1,in2,enable)，直流電動機可實現(xiàn)正轉(zhuǎn)、反轉(zhuǎn)、制動、待機等動作。 ② 控制輸入端子可采用lv-ttl（low voltage transistor transistor logic）邏輯輸入 ③ 內(nèi)置帶報警輸出的過熱停機電路（過熱保護電路）、貫通電流防止功能（死區(qū)
hematics of the clocked voltage comparator used. the design consists of pre-amplification stage followed by a decision making stage. the output is latched during the latch. after the comparison is made a digital level outputs are produced. m0 and m1 transistors sense the change at the input and accordingly activate m8, m11 and m9, m10 current mirror pairs. depending on the difference in the input signals, one of the transistor pairs will be turned on and other will be turned off. these transistors are par
ant 直軸瞬變時間常數(shù) transient response 瞬態(tài)響應 solid state 固體 buck 補償 operational calculus 算符演算 gain 增益 pole 極點 feedback signal 反饋信號 dynamic response 動態(tài)響應 voltage control system 電壓控制系統(tǒng) mismatch 失配 error detector 誤差檢測器 excitation system 勵磁系統(tǒng) field current 勵磁電流 transistor 晶體管 high-gain 高增益 boost-buck 升壓去磁 feedback system 反饋系統(tǒng) reactive power 無功功率 feedback loop 反饋回路 automatic voltage regulator(avr)自動電壓調(diào)整器 reference voltage 基準電壓 magnetic amplifier 磁放大器 amplidyne 微場擴流發(fā)電機 self-exciting 自勵的 limiter 限幅器 manual control 手動控制
active devices for r.f. include gaas fets, silicon bipolars and nmos and possibly pmos transistors. standard library types for a given process vendor can usually be adapted to the requirement, and are strongly advocated to avoid layout errors. passive devices include resistors and capacitors, which are routinely included in both low and high frequency analogue circuits, and inductors, which are commonly included in gaas circuits, but less so in silicon because the losses are greater. some samp
33、logic circuit 邏輯電路 數(shù)字計算機中，用以完成計算或解題作用的各種"閘電路"、觸發(fā)器，以及其它交換電路的通用術(shù)語，稱為"logic circuit"。 34、logic邏輯 指計算機或其它數(shù)字化(digital) 電子機器中的特殊電路系統(tǒng)，此等電路中含有多枚ic，可執(zhí)行各式計算功能(computation functions)，稱為logic或邏輯電路。常見之邏輯如 emitter coupled logic (ecl)、 transistor-transitor logic(ttl) 、cmos logic等。又fuzzy logic是指除了 0與1之外，另插入其它數(shù)值，是一種模棱兩可的邏輯。即在"是"與"非"之間加入"幾乎""大概"等字眼的邏輯。 35、micro-electronios 微電子 是電子技術(shù)的一部份，系針對極小的電子零件或元素，以及由其所構(gòu)成的產(chǎn)品體系，在理論及實務方面加以闡述及應用的學問。 36、microstrip
1、a ampere ; 安培 是電流強度的單位。當導體兩點之間的電阻為1 ohm，電壓為 1 volt時，其間的電流強度即為 1 ampere。ac alternating current ; 交流電acl advanced cmos logic ; 改進式「互補型金屬氧化物半導體」邏輯dc direct current ; 直流電dtl diode transistor logic ; 二極管晶體管邏輯ecl emitter-coupled logic ; 射極耦合邏輯由許多晶體管和電阻器在硅芯片上所合并而形成的一種高速邏輯運算電路。enf electro-motive force ; 電動勢esd electrostatic discharge ; 靜電放電許多電子零件及電子組裝機器，常因靜電聚積而造成瞬間放電而可能發(fā)生損壞，故常需接地 (grounding) ，將所聚集靜電逐漸釋放，以避免esd的為害。rtl resistor-transistor logic;電阻體／晶體管邏輯ttl transistor transistor logic; 晶體管晶體管邏輯 2、batch 批 指在
。 22、die bonding 晶粒接著 die 亦指集成電路之心臟部份,系自晶圓(wafer)上所切下一小片有線路的"晶粒"，以其背面的金層，與定架(lead frame)中央的鍍金面，做瞬間高溫之機械壓迫式熔接(thermo compression bonding,t.c.bonding)?；蛞原h(huán)氧樹脂之接著方式予以固定，稱為 die bond，完成 ic 內(nèi)部線路封裝的第一步。 23、diode 二極管 為半導體組件"晶體管"(transistor)之一種，有兩端點接在一母體上，當所施加電壓的極性大小不同時，亦將展現(xiàn)不同導體性質(zhì)。另一種"發(fā)光二極管"可代替儀表板上各種顏色的發(fā)光點，比一般燈泡省電又耐用。目前二極管已多半改成 smt 形式，圖中所示者即為 sot-23 之解剖圖。 24、dip(dual inline package)雙排腳封裝體 指具有雙排對稱接腳的零件，可在電路板的雙排對稱腳孔中進行插焊。此種外形的零件以早期的各式 ic 居多，而部份"網(wǎng)狀電阻器"亦采用之。 25
1.概述 mosfet的原意是：mos（metal oxide semiconductor金屬氧化物半導體），fet（field effect transistor場效應晶體管），即以金屬層（m）的柵極隔著氧化層（o）利用電場的效應來控制半導體（s）的場效應晶體管。 功率場效應晶體管也分為結(jié)型和絕緣柵型,但通常主要指絕緣柵型中的mos型（metal oxide semiconductor fet）,簡稱功率mosfet（power mosfet）。結(jié)型功率場效應晶體管一般稱作靜電感應晶體管（static induction transistor——sit）。其特點是用柵極電壓來控制漏極電流，驅(qū)動電路簡單，需要的驅(qū)動功率小，開關(guān)速度快，工作頻率高，熱穩(wěn)定性優(yōu)于gtr，但其電流容量小，耐壓低，一般只適用于功率不超過10kw的電力電子裝置。 2.功率mosfet的結(jié)構(gòu)和工作原理 功率mosfet的種類：按導電溝道可分為p溝道和n溝道。按柵極電壓幅值可分為；耗盡型；當柵極電壓為零時漏源極之間就存在導電溝道，增強型；對于n（p）溝道器件，柵極電壓大于（小于）零時才存在導電溝道，功率mosfet主
量。 avago technologies（安華高科技）中國及香港地區(qū)總經(jīng)理李艇先生表示：“消費電子和醫(yī)療設備的設計者需要實現(xiàn)數(shù)字化色彩測量能力，因而迫切要求擁有一款結(jié)合了更高的集成度、更簡便易用、更小尺寸和更低功率消耗等特征的元器件。我們新推出的數(shù)字色彩傳感器，正是業(yè)內(nèi)第一款擁有上述功能的產(chǎn)品。” 這款新型數(shù)字色彩傳感器采用標準的二線串行接口和整合的模擬/數(shù)字轉(zhuǎn)換器(adc, analog-to-digital converter)，與業(yè)內(nèi)類似的可變頻率和方形波ttl（晶體管/晶體管邏輯，transistor transistor logic）輸出相比，可實現(xiàn)更簡便的接口設計和更具彈性的光電信號轉(zhuǎn)換。這款色彩傳感器的基本架構(gòu)以均勻分布的光電二極管陣列為基礎，整合了rgb濾波器、邏輯控制核心和支持數(shù)字通信的adc增益選擇器。均勻分布的rgb濾波器和光電二極管陣列可以把由光偏差或不平整表面所造成的光階效應降到最低。 avago technologies（安華高科技）的adjd-s313-qr999的感測范圍很寬，因而只需通過簡單地調(diào)整增益設置，就可以應用于很多不同的照明環(huán)境。這款傳感器所整合的adc有
the circuit uses a 555 timer wired as an astable oscillator and powered by the emitter current of the bc109c. under dry conditions, the transistor will have no bias current and be fully off. however as the probes get wet the transistor will conduct and sounding the alarm.an on/off switch is provided and remember to use a non-reactive metal for the probe contacts. gold or silver plated contacts from an old relay may be used, however a cheap alternative is to wire alternate copper strips from a pi
相關(guān)元件pdf下載：bc109c lm380 bd131 the soft switching is enabled by a bd131 transistor wired as a switch in emitter follower configuration. the collector is wired to a permanent supply voltage, the 2h series inductor serves only to filter out power supply hum. this inductor is not too important and may be omitted if the dc supply is adequately smoothed. the control voltage is applied to the bd131 base terminal, the 10u capacitor and 10k resistor having a dual purpose:-i) a gradual charge of the
p; follow the steps shown below, 1. to adjust p1, temporarily connect t1 base to ground using test clips then adjust p1 to get 6.5v at the output of regulator u6.2. next first adjust p2 to get the 13.1v at the output of regulator u7, make sure transistor t5 is off or temporarily connect the t5 base to ground using test clips.3. now temporarily short the collector of transistor t5 to ground using test clips.3. adjust p3 to get the 12.1v at the output of u7 regulator ic. figure 1: circuit diag
olytic capacitor 35 volt (observe polarity) c5 100 picofarad ceramic disk capacitor c6 1000 microfarad electrolytic capacitor 25 volt (observe polarity) ic1 lm723 (rs276-1740) voltage regulator ic. socket is recommended. q1 tip3055t (rs276-2020) npn transistor (to-220 heat sink required) q2,q3 2n3055 (rs276-2041) npn transistor (large to-3 heat sink required) s1 any spst toggle switch f1 3 amp fast blow fuse d1-d4 full wave bridge rectifier (rs276-1185) t1 18 volt, 10 amp transformer hammond #165s18 (tech
t is shown in figure 5. u1 the master chip must be programmed with writer1.hex before the programmer board can run properly. q2 and q3 are to92 plastic package! with a can package, pin positions may differ on the layout. you can use any small signal transistors to replace them. vb1 is male type! all resistors can be 1/4w or 1/8w 5%. bill of materials january 4,2004 10:44:35 page1 item quantity reference part ______________________________________________ 1 2 c1,c2 30pf disceramic 2 2 c8,c3
終于找到光藕了部分光電藕合器型號及介紹,ps,pc,tlp系列請大家不要使用部分光電藕合器型號及介紹,ps,pc,tlp系列請大家不要使用本站即將推出光藕部分的詳細資料，請大家關(guān)注光藕，光偶，是光電耦合器，光電偶合器的簡稱4n25 transistor 6 pin dip w/ base lead4n26 transistor 6 pin dip w/ base lead4n27 transistor 6 pin dip w/ base lead4n28 transistor 6 pin dip w/ base lead4n29 darlington 6 pin w/ base lead4n30 darlington 6 pin w/ base lead4n31 darlington 6 pin w/ base lead4n32 darlington 6 pin w/ base lead4n33 darlington 6 pin w/ base lead4n35 transistor 6 pin dip w/ base lead4n36 transistor 6 pin dip w/ base lead4
keven_lee那篇電流鏡e文的翻譯，老外說話就是通俗淺顯current mirrors［1］an interesting and often-used circuit applying the bipolar junction transistor is the so-called current mirror, which serves as a simple current regulator, supplying nearly constant current to a load over a wide range of load resistances. 一個有趣且常用的雙極型晶體管電路就是所謂的電流鏡。這是一個簡單的電流調(diào)整器，可以為很寬的負載范圍提供幾乎恒定的電流。［2］we know that in a transistor operating in its active mode, collector current is equal to base current multiplied by the ratio β. we also know that the ratio betwe
cuit design-beijing-03.11.09） 25、to design a cmos invertor with balance rise and fall time,please define the ration of channel width of pmos and nmos and explain? 26、為什么一個標準的倒相器中p管的寬長比要比n管的寬長比大？（仕蘭微電子） 27、用mos管搭出一個二輸入與非門。（揚智電子筆試） 28、please draw the transistor level schematic of a cmos 2 input and gate and explain which input has faster response for output rising edge.(less delay time)。（威盛筆試題circuit design-beijing-03.11.09） 29、畫出not,nand,nor的符號，真值表，還有transistor level的電路。（infineon筆 試） 30、畫出cmos的圖，畫出tow-
al conferences in the areas of data storage and advanced ic design. specific responsibilities include: - communicate effectively within a global business environment (must be proficient in both spoken and written english).- perform transistor level, analog and mixed signal integrated circuit design of various cells and blocks within custom chips for the hard disk drive industry. examples of some blocks are: voltage regulators, bandgap circuits, data converters (dac, ads), low noise ampli
有誰知道器件上印有ua的transistor arry型號這個器件（6腳）封裝很小，我懷疑是nec的transistor array，但是不知道具體型號是多少？謝謝先。
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