# Facility of Engineering. Biomedical Engineering Department. Medical Electronic Lab BME (317) Pre-Report Forms

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1 Facility of Engineering Biomedical Engineering Department Medical Electronic Lab BME (317) Pre-Report Forms Prepared by Eng.Hala Amari Spring 2014

2 Facility of Engineering Biomedical Engineering Department Medical Electronic Lab BME (317) EXP#2: Diode Characteriscs & Applicaons Pre-Report Student Name: Student Number: Submission Date:

3 1. Introduction: 2. Objectives: 3. Analysis: I. Diode testing: Fill the following table, which include the results of diode testing using DMM, if you know that the open circuit Voltage is 2.99V:

4 II. Diode Characteristics: Analyze The circuit Shown in the Figure below using KCL,KVL For the Following three cases: Note: assume V D =.7V for all the cases. A. Vs=.3V After analysis: Vd= B. Vs=.7V, Id= After analysis: Vd=, Id= C. Vs=3V After analysis: Vd=, Id= For the Same circuit, reverse the Diode, then analyze it For Vs=10V. After analysis: Vd=, Id=

5 III. The diode Clipper: Analyze the circuit Shown in the Figure below using KCL, and KVL, Then sketch the output wave Form if Vin = 5Vp-p, sine wave at a frequency of 200Hz. Note: assume V D =.7V. Output wave Form IV. The Diode Clamper: Analyze the circuit Shown in the Figure below using KCL, and KVL, Then sketch the input and the output wave Form at the same sit of axis, if Vin = 5Vp-p, sine wave at a frequency of 1KHz. Note: assume V D =.7V. Output wave Form

6 V. Half-wave Rectifier: Analyze the circuit Shown in the Figure below using KCL, and KVL, Then sketch the input and the output wave Form at the same sit of axis, if Vin =15Vp-p, sine wave at a frequency of 100Hz. Note: assume V D =.7V. Output wave Form VI. Full-wave Rectifier: Analyze the circuit Shown in Figure#5 using KCL, and KVL, Then sketch the input and the output wave Form at the same sit of axis, if Vin =15Vp-p, sine wave at a frequency of 100Hz. Note: assume V D =.7V. Output and input wave Form

7 After Adding a capacitor 2.2micro in parallel with 10K, sketch the output wave Form. Output wave Form VII. Zener Diode Voltage Regulator: Analyze the circuit Shown in Figure#6 using KCL, and KVL, For the Following cases: 1. Vout (FL): full load output voltage= 2. Vout (NL): No-Load output voltage=

8 Facility of Engineering Biomedical Engineering Department Medical Electronic Lab BME (317) EXP#3: Common Emitter Characteristics & Amplifier Pre-Report Student Name: Student Number: Submission Date:

9 1. Introduction: 2. Objectives: 3. Analysis: I. Common Emitter Characteristics: For the circuit shown in figure#1, what is the purpose of: A. 1Mohm potentiometer: Figure#1 B. 10Kohm potentiometer:

10 Plot the output characteristics of the common emitter bias circuit (I C vs V CE ). II. Common Emitter Amplifier: DC analysis: Analyze the circuit shown in Figure#2 to calculate the following parameters: V E, V CEQ. Note: assume β=100. Figure#2

11 AC Analysis: Analyze the circuit shown in Figure #2 (at the normal case) to calculate the following parameters: Gain, input impedance (R (in) ), lower cutoff frequency( F L ). Note: assume β=100.

12 What is the phase shift between the input signal and the output signal? What is the Function of : 1.Bypass capacitor? 2.Coupling capacitor? Plot the frequency response curve of the CE amplifier shown in Figure#2.

13 Facility of Engineering Biomedical Engineering Department Medical Electronic Lab BME (317) EXP#4: JFET Characteristics and Applications Pre-Report Student Name: Student Number: Submission Date:

14 1. Introduction: 2. Objectives: 3. Analysis: I-Common source Characteristics: Define gm ο, then If you know that I DSS =1mA, V pinchoff =1.2 V, calculate gm o For the N-channel JFET transistor, what is the range of V GS (out). A V GS B A=, B= Plot the common source characteristic curve (I D vs. V DS ).

15 II- Transfer Characteristics: Plot the transfer characteristics curve of the circuit shown in figure#1. Transfer Characteristics Curve Figure#1 III- Common Source Amplifier: DC analysis: Analyze the circuit shown in Figure#2 to calculate the following parameters : I DQ, V GSQ. Note: assume I DSS =1mA, V pinchoff = -1.2 V Figure#2

16 AC analysis Analyze the circuit shown in Figure#2 without R load (R L ) to calculate the following parameters : Gain, Output impedance [R (out)], Lower cutoff frequency (F L ) What is the phase shift between the input signal and the output signal?

17 Facility of Engineering Biomedical Engineering Department Medical Electronic Lab BME (317) EXP#5: Operational Amplifier Characteristics & Applications Pre-Report Student Name: Student Number: Submission Date:

18 1. Introduction: 2. Objectives: 3. Analysis: I. Slew Rate: How does the slew rate affect the frequency response of the operational amplifier? If the input frequency increases beyond the calculated maximum frequency, what is the change in the output signal? II. Output Offset Voltage: Define the Output offset voltage?

19 For the circuit shown in figure#1, mention two methods to reduce the output offset voltage (null the amplifier)? 1. Figure#1 2. III. Inverting Amplifier: Analyze the circuit shown in figure#2 to calculate the gain. Figure#2 For the circuit shown in figure#2, If the value of the feedback resistor(10k) replaced with(820k), and the input signal is 200mVp-p at frequency of 1 KHz, then: 1. Plot the output wave Form. 2. Explain the result you get at the previous part.

20 VI. Summing Amplifier: Analyze the circuit shown in figure#3, to find expression of Vout. Figure#3 If the input signal is 2Vp-p and at frequency of 1 KHz, Plot the input and the output signal at the same sit of axis. V. Practical Integrator: For the circuit Shown in figure#4, calculate the upper cutoff frequency. Note: assume R1=10KΩ, RF=100KΩ, C1=2.2nF. Figure#4

21 Facility of Engineering Biomedical Engineering Department Medical Electronic Lab BME (317) EXP#6: Active Filters & Oscillators Pre-Report Student Name: Student Number: Submission Date:

22 1. Introduction: 2. Objectives: 3. Analysis: I- Butterworth 2 nd -order low-pass filter: Analyze the circuit shown in figure#1 to calculate 1. Gain. 2. Upper cutoff frequency. Figure#1

23 Plot the frequency response curve of the Butterworth 2nd -order low-pass filter shown in figure#1. II- Wien bridge oscillator: For the circuit shown in figure#2, if R1=R2=R=10 k_ and C1=C2=C=0.1μF calculate the frequency of the output signal, then Plot the shape of the output signal. Figure#2 Output Signal

24 Facility of Engineering Biomedical Engineering Department Medical Electronic Lab BME (317) EXP#7: Transistors as Switching Elements (Inverters) Pre-Report Student Name: Student Number: Submission Date:

25 1. Introduction: 2. Objectives: 3. Analysis: I. Switching BJT: Analyze the circuit shown in figure#1 to verify the truth table of the inverter. Figure#1

26 Sketch the transfer characteristics for the inverter. II. Resistor Transistor Logic: Analyze the circuit shown in figure#2 to complete the below table Figure#2 Find out the logic function implemented by this circuit.

27 Facility of Engineering Biomedical Engineering Department Medical Electronic Lab BME(317) EXP#8: TTL and CMOS Logic Gates & Interfacing Pre-Report Student Name: Student Number: Submission Date:

28 1. Introduction: 2. Objectives: 3. Analysis: III- TTL Driving Low-Voltage CMOS: Use the circuit shown in figure#1 to complete the following table (without the pull-up resistor RP). Figure#1 What is the function of the pull-up resistor (Rp)?

29 IV- TTL driving high-voltage CMOS: Use the circuit shown in figure#2 to complete the following table. Figure#2 What is the function of the Circuit which connected between V o1 and V o2? V- High-voltage CMOS Driving TTL: Use the circuit shown in figure#3 to complete the following table. Figure#3 What is the function of the Circuit which connected between V o1 and V o2?

30 Facility of Engineering Biomedical Engineering Department Medical Electronic Lab BME (317) EXP#9: Mulvibrators Using 555 Timer Pre-Report Student Name: Student Number: Submission Date:

31 1. Introduction: 2. Objectives: 3. Analysis: I- Monstable Multivibrator: If we apply a trigger input of 100 Hz, TTL wave having a duty cycle equal to 80%, what will be the on duration (high part) of the input signal? Draw the waveforms at pin 7 of the circuit shown in figure#1. Figure#1

32 Design a monostable multivibrator circuit which has a pulse width equal to 6 ms. II- Astable Multivibrator: For the circuit shown in figure#2, if VCC = 5V, R1 = 4.7 K, R2 = 68 K, RL = 1 K, C = 1nF. Calculate: T ch, T dch, and the Duty cycle. Figure#2 Design an astable multivibrator circuit that has a duty cycle 65% and a frequency of 100 KHz. Use a 1 nf capacitor.

33 Facility of Engineering Biomedical Engineering Department Medical Electronic Lab BME (317) EXP#10: Schmitt Trigger Characteristics And Waveform Generation Pre-Report Student Name: Student Number: Submission Date:

34 1. Introduction: 2. Objectives: 3. Analysis: I- Inverting Op-Amp Schmitt Trigger: Design using Op-Amp an inverting Schmitt trigger having a hysteresis width equal to 1.8V. Use +11.5V bias supplies as shown in figure#1.

35 Sketch the transfer characteristics curve of the Schmitt trigger designed at the previous part. II. Generation of Square wave using CMOS Schmitt trigger (40106): For the circuit shown in figure#2 plot the output waveform at pin2, and the output waveform (V cap ). Note: Assume V DD =10V, V SS =0V Output at pin(2) (Vo) Output( V cap )

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