A06B-6080-H307
A06B-6080-H307典型的擴(kuò)流三極管是3.3V電源部分的輸出管N1,N1工作在線性放大區(qū),LM358的電流輸出能力是50mA,三極管BCX56的額定電流是1A,其作用是擴(kuò)流,增強(qiáng)電流輸出能力。
開(kāi)關(guān)驅(qū)動(dòng)
三極管和場(chǎng)管大量用在IGBT的驅(qū)動(dòng)電路的輸出級(jí),作為驅(qū)動(dòng)脈沖的輸出放大,一般采用互補(bǔ)的對(duì)管構(gòu)成推挽電路,工作在開(kāi)關(guān)狀態(tài),要求就有的電流輸出能力和較快的開(kāi)關(guān)速度。驅(qū)動(dòng)管一般選取快速功率晶體管,以滿足快速驅(qū)動(dòng)信號(hào)的傳輸要求。
下面介紹幾種常用的驅(qū)動(dòng)管:
BCX56和BCX53:前者NPN,后者PNP,耐壓80V,額定電流1A,功耗為1W,開(kāi)關(guān)頻率可達(dá)20M,SOT-89貼片封裝,用于小功率變頻器的驅(qū)動(dòng),也可用作通用三極管。
2SC3710和2SA1452:前者NPN,后者PNP,耐壓80V,額定電流12A,開(kāi)關(guān)時(shí)間為1us,插接件TO220封裝,用于大功率變頻器的驅(qū)動(dòng)。
D44HV和D45HV:額定電流容量是15A,峰值電流20A,耐壓80V,開(kāi)關(guān)時(shí)間為1us,插接件TO220封裝,用于大功率變頻器的驅(qū)動(dòng)。
A06B-6080-H307
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