Laboratory Manual - King Fahd University of Petroleum and Minerals

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Bandpass realization A circuit that realize biquadratic BPF based on a single op amp is shown in Figure 3 known as Delyiannis-Friend biquad v s R 1 C 1 R 2 R 3 C 2 2 3 7 - 741 + +Vcc 4 -Vcc 6 v o T BP v () s Figure 3: A second-order BPF based on a single op amp. s / C R o 1 1 2 vs s s( C1 C2) /( C1C 2R2 ) ( R1 R3 ) / C1C 2R1R 2R3 Therefore, the filter parameters are as follows: 1/ C1R1 C2R2 a) gain= ( C C ) / C R C R ( C C ) b) w o 1 2 2 2 1 1 1 2 R R 1 3 C C R R R 1 2 1 2 3 o ( C C ) BW w Q C C R c) 1 2 1 2 2 d) w R R C C R o Q BW RR C C 1 3 1 2 2 1 3 1 2 PRELAB WORK Students must perform the following calculations and SPICE before coming to the lab. Design: 1. Design the circuit of Figure 1 such that f o =12.5kHz, Q=5, the dc gain is not specified. Use C 1 =C 2 =C and R 1 =R 2 =R. 2. Design the circuit of Figure 3 to achieve f o =10kHz, Q=3 and gain of 5. Use C 1 =C 2 =5nF. 60
SPICE simulation: 3. Use SPICE simulations to verify your designs and submit their frequency responses. Use op amp model of experiment 4. You must have your SPICE output file with your hand calculations ready before you come to the lab. EXPERIMENTAL WORK 1. Construct the filter of Figure 1 and measure the frequency response for your design. 2. Plot your data in the provided graph sheet and determine the parameters required by Table I. 3. Use same components of Figure 1 to assemble the filter of Figure 2. 4. Repeat step 2 for the filter of Figure 2. 5. Construct the filter of Figure 3 and measure the frequency response for your design. 6. Repeat step 2 for the filter of Figure 3. 7. Compare your hand calculations, SPICE simulations and experimental measurements. 8. Comment on your results. 61
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King Fahd University of Petroleum a
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4. You can use upper or lower case
Page 5 and 6:
Detailed model parameters are provi
Page 7 and 8:
‣ Run the program Once you are in
Page 9 and 10: |Av(jω)| [dB] A m F L (jω) F H (j
Page 11 and 12: Spice Transistor Model .model Q2N39
Page 13 and 14: TABLE 2: DETAILED BJT MODEL PARAMET
Page 15 and 16: KING FAHD UNIVERSITY OF PETROLEUM A
Page 17 and 18: SPICE Simulation: SPICE simulations
Page 19 and 20: Table I: Measurement results With C
Page 21 and 22: This page to be submitted with the
Page 23 and 24: where R R 1 // R 2 // r and ' in B
Page 25 and 26: 4. Use three parastic capacitances
Page 29 and 30: 1 The output voltage in time domain
Page 31 and 32: 10k Differentiator 1500pF 2 3 7 - 7
Page 33 and 34: A SUBCIRCUIT may be called as follo
Page 35 and 36: 35 6. Construct the differentiator
Page 37 and 38: MINI-SYSTEM Now, you should be appl
Page 39 and 40: vo ( s) R2 / R1 v ( ) s i s 1 R w
Page 41 and 42: DL1 4 5 DIODE DL2 6 4 DIODE VL1 5 0
Page 43 and 44: DEMONSTRATION: NETWORK ANALYZER The
Page 45 and 46: R 1 2 3 7 - 741 + +15V 4 -15V 6 V o
Page 47 and 48: considering the op amp connected as
Page 49 and 50: frequency at, say 1kHz, then the ou
Page 53 and 54: General (bilinear) filter a s a Ts
Page 59: The filter parameters are as follow
Page 65 and 66: +V DD =5V 100k R 2 R D 4.3k C 2 R s
Page 67 and 68: You must have your SPICE output fil
Page 71 and 72: Amplitude Controll Althogh the freq
Page 73 and 74: 73 COMPONENTS 1. Digital Oscillosco
Page 77 and 78: V i 2 3 +15V 7 - 741 + 6 4 -15V R 1
Page 79 and 80: 4. Capacitors: C=0.1μF (2 NOs), 15
Page 81 and 82: APPENDIX 1. Capacitors and Resistor
Page 83: 83 2. Data sheet for MOSFET # 2N435
Page 87: 87 4. Data sheet for op amp 741.
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Laboratory Manual - King Fahd University of Petroleum and Minerals

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