TÔ PHẠM HÀ TRIỀU LÊ NGUYÊN TRƯỜNG SƠN NGUYỄN NGỌC SƠN

  • Published on
    16-Jan-2016

  • View
    46

  • Download
    0

Embed Size (px)

DESCRIPTION

T PHM H TRIU L NGUYN TRNG SN NGUYN NGC SN. OP-AMP TL072CN. S chn. Transistor tng li sc2383. Transistor tng khuch i cng sut. D468 npn. B562-pnp. Diode FR207. S tng ng ac bn k dng. S tng ng ac bn k m. Dng ic 2 bn k i xng. Xt Q1 - PowerPoint PPT Presentation

Transcript

  • T PHM H TRIUL NGUYN TRNG SNNGUYN NGC SN

  • OP-AMP TL072CN

    S chn

  • Transistor tng li sc2383

  • Transistor tng khuch i cng sutD468 npn

  • B562-pnp

  • Diode FR207

  • Rl=15 ohmVcc=12v

    Chn re=1 ohm

  • S tng ng ac bn k dng

  • S tng ng ac bn k m

  • Dng ic 2 bn k i xng

  • Xt Q1B qua ib2,ib3Rdc= R3Rac=R3//(hie2+Rl'hfe2) b qua RdPhng trnh ng ti 12-1.3=Rdc. ICQ1 +VCEQ1

  • ICQTUDng Id=ICQ1, diode dn ta chn dng id=0.02AR3=278 ohm

  • p hi tip trn ng ra tng cng sut l 6 V,p ti ng vao V- ca opam l ta s chn RK,Rf sao cho V+-V->0.24 th p ra OPAMP s l 6V

  • vi=1V ,ta chn R1=R2 sao cho R1//R2>>richn R1=R2=50k =>viV+V+v+ = v- = vi

  • chn Rk=10k =>Rf=44k

    cc t bypasss c chn sao cho trong khong m tng th b bypass, chon Ci=Ck=470u

  • Chn tng s ct thp l 20 hz => CL=470u

  • VLm

  • P NG RA Q1

  • P NG RA OPAMP

  • *