Data Tables

ftweeter 1105

fwoofer 1243

Table 9.1

Output One

Frequency V1 Mag Theory V1 θ Theory V1 Mag Exp V1 θ Exp

50 1 V 300 910 mV 287,4

70 1 V 228 910 mV 203,2

100 1 V 166 871 mV 145,6

200 1 V 194 851 mV 187,3

500 1 V 325 851 mV 334,8

1k 995 mV 72,7 831 mV 67,4

2k 980 mV 290 831 mV 287,1

5k 890 mV 317 811 mV 324,3

10k 700 mV 329 712 mV 310,4

15k 548 mV 351 613 mV 360,8

20k 441 mV 255 514 mV 234,7

Table 9.2

70 Hz

500 Hz

15 kHz

Output Two

Frequency V2 Mag Theory V2 θ Theory V2 Mag Exp V2 θ Exp

50 48,8 mV 20,7 95 mV 26,6

70 68,2 mV 35,4 102 mV 45,2

100 97,1 mV 87,7 126 mV 91,6

200 192 mV 293 205 mV 287,9

500 439 mV 328 403 mV 332,1

1k 699 mV 67,6 633 mV 78,5

2k 890 mV 258 807 mV 279,4

5k 979 mV 10,6 863 mV 18,3

10k 994 mV 250 851 mV 276,8

15k 996 mV 4,6 851 mV 2,5

20k 998 mV 114 871 mV 132,2

Table 9.3

100 Hz

1 kHz

15 kHz

50 70 100 200 500 1000 2000 5000 10000 15000 200000

100200300400500600700800900

1000910 910 871 851 851 831 831 811

712613

514

95 102 126205

403

633

807863 851 851 871

Frequency - Voltage Experimental

RL RC

FREQUENCY

VOLT

AGE

50 70 100 200 500 1000 2000 5000 10000 15000 200000

200

400

600

800

1000

1200

1000 1000 1000 1000 1000 995 980890

700548

441

48.8 68.2 97.1192

439

699

890979 994 996 998

Frequency - Voltage Theory

RL RC

FREQUENCY

VOLT

AGE

Questions

1) Are the responses of the two outputs symmetrical? Do they need to be?

- The responses of the two outputs are not symmetrical. Because we don’t have 10 mHInductor.

2) What is the maximum attenuation at the frequency extremes for the two outputs?

- In RC circuit maximum output voltage is on 50 Hz. In RL circuit maximum output voltage is on 20 kHz.

3) How might the attenuation be increased?- In RC if we decrease the frequency, attenuation might be increased. In RL if we

increase the frequency, attenuation might be decrease.

LAB REPORT

CIRCUIT THEORY II

EXPERIMENT 9

PASSIVE CROSSOVER

MERT AĞALDAY

120403007

EEE202

01.06.2015