Elektroonika ja jõupooljuhttehnika 1. harjutuse aruanne
L=1H
R=7.9
f=79 Hz
Ur=10V
Fig. 1.1 Circuit diagram
Calculations:
=2f=2**79=496,4 rad/s
XL=L=1*496,4
Z=SQRT(XL2+R2)=SQRT(496,42+7,92)=496,5
I=UR/R=10/7,9=1,3A
U=I*Z=1,3*496,5=645,5V
UMAX=SQRT(2)*U=912,9V
=-arccos(R/Z)=-89°
=-89°/(360*79)=-3,1*10-3
A=-20*log(Z/R)=-36 dB
Comparative data table:
Quantity Calculated value Experimental value
I, A 1,3 1,308
° -89 -89,118
, s -3,1*10-3 -3,2*10-3
A, dB -36 -36,254
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