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transistor

晶體管(transistor)是一種固體半導(dǎo)體器件(包括二極管、三極管、場效應(yīng)管、晶閘管等,有時特指雙極型器件),具有檢波、整流、放大、開關(guān)、穩(wěn)壓、信號調(diào)制等多種功能。晶體管作為一種可變電流開關(guān),能夠基于輸入電壓控制輸出電流。與普通機械開關(guān)(如Relay、switch)不同,晶體管利用電信號來控制自身的開合,所以開關(guān)速度可以非常快,實驗室中的切換速度可達(dá)100GHz以上。[1]
  • t transistor has the characteristics of components of the sensor real-time measurement of voltage an

    t transistor has the characteristics of components of the sensor real-time measurement of voltage and current signals through, obtained quality factor correction circuit for the feedback and the feedback time, IBM used the feedback field effect transistor implementation, in order to achieve quality factor correction circ

    標(biāo)簽: characteristics measurement transistor components

    上傳時間: 2014-12-22

    上傳用戶:杜瑩12345

  • spice NPN bipolar transistor amplifier

    spice NPN bipolar transistor amplifier

    標(biāo)簽: transistor amplifier bipolar spice

    上傳時間: 2014-11-26

    上傳用戶:moshushi0009

  • RF CMOS Low-Phase-Noise LC Oscillator Through Memory Reduction Tail transistor

    RF CMOS Low-Phase-Noise LC Oscillator Through Memory Reduction Tail transistor

    標(biāo)簽: Low-Phase-Noise Oscillator transistor Reduction

    上傳時間: 2017-07-21

    上傳用戶:66666

  • 三極管8050的管腳圖和參數(shù)transistor 8050 and parameters of the pin map

    三極管8050的管腳圖和參數(shù)transistor 8050 and parameters of the pin map

    標(biāo)簽: 8050 transistor parameters and

    上傳時間: 2013-11-29

    上傳用戶:jing911003

  • 9018的管腳圖及三極管的測量方法和NPNPNP的性質(zhì)和區(qū)別Pin diagram of 9018 and the measurement transistor and NPN PNP distin

    9018的管腳圖及三極管的測量方法和NPN\PNP的性質(zhì)和區(qū)別Pin diagram of 9018 and the measurement transistor and NPN \ PNP distinction between the nature and

    標(biāo)簽: 9018 measurement transistor and

    上傳時間: 2014-01-01

    上傳用戶:xieguodong1234

  • mos transistor, basic simulation

    mos transistor, basic simulation

    標(biāo)簽: transistor simulation basic mos

    上傳時間: 2017-09-20

    上傳用戶:xuan‘nian

  • tlp521參數(shù)

    tlp521參數(shù):The TOSHIBA TLP521−1, −2 and −4 consist of a photo−transistor

    標(biāo)簽: tlp 521 參數(shù)

    上傳時間: 2013-07-16

    上傳用戶:x4587

  • IGBT模塊系列

     IGBT(Insulated Gate Bipolar transistor),絕緣柵雙極型晶體管,是由BJT(雙極型三極管)和MOS(絕緣柵型場效應(yīng)管)組成的復(fù)合全控型電壓驅(qū)動式功率半導(dǎo)體器件, 兼有MOSFET的高輸入阻抗和GTR的低導(dǎo)通壓降兩方面的優(yōu)點。GTR飽和壓降低,載流密度大,但驅(qū)動電流較大;MOSFET驅(qū)動功率很小,開關(guān)速度快,但導(dǎo)通壓降大,載流密度小。IGBT綜合了以上兩種器件的優(yōu)點,驅(qū)動功率小而飽和壓降低。  

    標(biāo)簽: IGBT 模塊

    上傳時間: 2013-11-03

    上傳用戶:panpanpan

  • 用于大功率IGBT的驅(qū)動電路

    對大功率IGBT(Insulated Gate Bipolar transistor,絕緣柵雙極型晶體管)的開關(guān)特性、驅(qū)動波形、驅(qū)動功率、布線等方面進行了分析和討論,介紹了一種用于大功率IGBT 的驅(qū)動電路。

    標(biāo)簽: IGBT 大功率 驅(qū)動電路

    上傳時間: 2013-12-12

    上傳用戶:ljt101007

  • 基于8098單片機的SPWM變頻調(diào)速系統(tǒng)

      數(shù)字控制的交流調(diào)速系統(tǒng)所選用的微處理器、功率器件及產(chǎn)生PWM波的方法是影響交流調(diào)速系統(tǒng)性能好壞的直接因素。在介紹了正弦脈寬調(diào)制(SPWM)技術(shù)的基礎(chǔ)上,設(shè)計了一種以8098單片機作為控制器,以智能功率模塊IPM為開關(guān)器件的變頻調(diào)速系統(tǒng)。通過軟件編程,產(chǎn)生正弦脈沖寬度調(diào)制波形來控制絕緣柵雙極晶體管的導(dǎo)通和關(guān)斷,從而達(dá)到控制異步電動機轉(zhuǎn)速的目的。實驗結(jié)果表明,該系統(tǒng)可調(diào)頻率調(diào)電壓,穩(wěn)定度高,調(diào)速范圍寬,具有較強的實用價值   Abstract:   AC variable speed with digital control systems used microprocessors, power devices and generate PWM wave is the direct factors of affecting the performance AC speed regulation system. On the basis of introducing the sinusoidal pulse width modulation (SPWM) technology,this paper designed variable speed system which used 8098 as a controller, intelligent power module IPM as switching device. Through software programming, resulting in sinusoidal pulse width modulation waveform to control the insulated gate bipolar transistor turn on and off, so as to achieve the purpose of speed control of induction motors. Experimental results show that the system can adjust frequency modulation voltage, high stability, wide speed range, has a strong practical value.  

    標(biāo)簽: 8098 SPWM 單片機 變頻調(diào)速系統(tǒng)

    上傳時間: 2013-11-14

    上傳用戶:ynwbosss

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