BO CO TH NGHIM

IN T HC TNG T V NG DNG

LAB 2

DIODE APPLICATIONS

NHM 9

Trn Hng Giang 40900681

inh Anh Bo 60900131

Lm Ngc Qu 21102833

Vc v Vout V_in1 v V_in2

- V_in1 v V_in2 c dng sng sin, cng tn s 60 Hz, Bin ging nhau u bng 16,97 V.

Nhng c pha ngc nhau

- Vout l DC, c gi tr bng 5,12 V

- Vc c dng ging sng ra ca chnh lu ton sng

Vc

Vout

Gii thch cc dng sng:

- Dng sng ca Vc ging nh sng ra ca chnh lu ton sng vi tr trung bnh khong 15V, tuy

nhin ng ra ca mch trn c mc song song vi diode zener c in p nh thng l 5,12 V, hn

na trong mi chu k, iode zener u hot ng min phn cc ngc nn in p ng ra lun c

gi mc 5,12 V.

- nhp nh in p rt nh, VR 0 - Tn s 0 Hz

nhp nh in p l rt nh so vi phn m phng 2.6

Dng ti:

IL = Vout/RL = 5mA

Vc

Vout

Dng ti: I L = Vout/RL = 50mA

gn sng: Vr = 3,17 V v khng giao ng

gn sng Vr bin thin lin tc trong ln cn 11V

Vout

Vi Vmax = 8.43 V

Vmin = 8.36 V

Vtb = 8.39 V

10 uF * 1 mF

Vi gi tr C nh, nhp nh in p ng ra cng nh hn

C2 = 10 uF * C2 = 1 mF

nhp nh in p thay i nh , C2 nh hn th Vr nh hn