Coursework Cover Sheet and Feedback Forms In submitting evidence for this assignment, students should be aware of the following: • Unless there are extenuating circumstances, work handed in after the hand-in date will receive a mark no greater than 40%; if handed in after the cut-off date (1 week after the hand-in date) the mark will be 0%. • Student Handbook of Regulations: Section 5 covers procedures for students wishing to claim extenuating circumstances. Sections 4 and 6 define plagiarism and the procedures and penalties for dealing with it. IMPORTANT NOTE: Tutors marking coursework may use the TurnitIn plagiarism service to check for plagiarism, and will use it where possible in all cases where plagiarism is suspected. • You are advised to keep copies of all your assignments in case of difficulties. The signature below confirms that you have read and understood the regulations concerning hand-in deadlines, penalties for late submission, plagiarism and extenuating circumstances procedures and that the work submitted is your own. This assignment will NOT be marked unless the following section is fully completed Student Name: Course and Year Signature: Student Number: Module Title Module Number Module Tutor Electronics 2 NIE2203 Dr. Q. Z. Ahmed Assignment Title Assignment Weighting Multiple-Feedback Band-pass (MTB) filters 30% Date: Viva 1 Date: Viva 2 SCHOOL OF COMPUTING AND ENGINEERING ASSIGNMENT SPECIFICATION COURSE TITLE: MEng EE, EEE, BEng EE, EEE, ECE, EECS, CSE UNIT TITLE: NIE2203 Electronics 2 ASSIGNMENT TITLE: Multiple-Feedback Band-pass (MFB) filters WEIGHTING: 30% UNIT TUTORS: HANDED OUT: January 2017 SUBMISSION DATE: Please refer to the 2nd Year Assignment Schedule TIME ALLOCATED: 6 hours (+ 18 hours) OUTCOMES ASSESSED a) Research & Analysis - design calculations • Research the fundamental theory, analyse the circuit and associated equations. • Calculate the Quality factors (Q) and understand the limitations of the calculated results. b) Build & test the circuit – Demonstrate working system • Construct the circuit on veroboard and test. Demonstrate, via a verbal presentation, that the circuit is working to the design specification (for your specific band). c) Circuit Simulation • Simulate the circuit (for your specific band) and extract the quality factors (Q) and understand the limitations of the simulated results. • Simulate the two encompassing bands (one band before and one after your specific band) and extract the quality factors. • Demonstrate, via a verbal presentation, that the simulation process has been successful. Figure 1 Group f0 Hz Theoretical value R1  R2  R3  C1, C2 Farads (F) Band 1 31 82k 2k7 160k 220 n Band 2 40 82k 2k7 160k 180 n Band 3 50 82k 2k7 160k 150 n Band 4 63 82k 2k7 160k 120 n Band 5 80 82k 2k7 160k 100 n Band 6 100 82k 2k7 160k 82 n Band 7 125 82k 2k7 160k 56 n +5n6 Band 8 160 82k 2k7 160k 47 n Band 9 200 82k 2k7 160k 39 n Band 10 250 82k 2k7 160k 27 n +4n7 Band 11 315 82k 2k7 160k 22 n +2n7 Band 12 400 82k 2k7 160k 18 n +1n5 Band 13 500 27k 820 56k 47 n Band 14 630 27k 820 56k 39 n Band 15 800 27k 820 56k 27 n +2n7 Band 16 1000 8k2 510 18k 47 n +4n7 Band 17 1k4 8k2 510 18k 39 n Band 18 2000 8k2 510 18k 27 n Band 19 2k8 8k2 510 18k 18 n +1n5 Band 20 4000 8k2 510 18k 12 n +1n8 Band 21 5k6 8k2 750 18k 8n2 Band 22 8000 8k2 1k2 18k 4n7 Band 23 16000 8k2 1k2 18k 2n2 Table 1 Objectives: Each student will be allocated a specific MFB band with a unique (ideal) centre frequency. Figure 1 shows the circuit diagram and Table 1 shows the 23 bands and associated resistor and capacitor values. If all 23 bands were used we would have a ‘23 band audio graphic equalizer.’ 1. Research MFB multi-band equalisation systems. a. Show (evidence; 2 pages maximum) how the 23 centre frequencies were derived: what proportion of an octave was used and what Quality Factor (Q) and why. 2. Research the MFB circuit band you have been allocated and its associated equations. Using the equations, calculate (evidence; 2 pages maximum): a. Centre frequency (f0 ) for the resistors and capacitors in your band. b. Bandwidth (BW) c. -3dB cut-off frequency points and the closed-loop voltage gain. 3. Build the MFB circuit on veroboard (soldering) and demonstrate that the circuit is working to your calculated values (you will record the values as evidence). You will be expected to answer questions relating to objectives 1 to 3. 4. Using the NI Multisim software, develop the schematic for your MFB filter band circuit. Simulate, evaluating in detail all the parameters specified in objective 2 (those you calculated). Evidence will be expected. 5. Repeat objective 4 for the two bands encompassing your band. One band before and one band after. Evidence will be expected. 6. You will be expected to answer questions and demonstrate that objectives 4 and 5 have been successful. NOTE: Objectives 1 & 2 (evidence) are required to be completed before the lab session (objective 3). They should be attached to the PERFORMANCE feedback sheet and handed-in to the tutor at the start of the lab session of objective 3. Objective 1 to 3 will be assessed during the lab session. Objectives 3 to 6 (evidence) will be completed during the computer simulation session. Objectives 1 to 6 will be assessed during the simulations session. The same PERFORMANCE feedback sheet will be used. This the graph after I conducted the circuit Here the frequency response is (12). However, my band no 4 there the frequency was 63. Note: why the frequency became 12 please write why this difference was happened. THIS PICTURES