MEDICAL ELECTRONICS
BEG3B1BM
Semester VI
T
1
P
2
Duration
3
Marks
80
Internal Assessment
Theory
Practical
Marks
Marks
Practical
Duration
Year III
Remarks
L
3
Examination Schedule
Final
Theory
Total Marks
Teaching
Schedule
Hours/Week
Marks
20
25
125
Course Objective: Completion of this course will enhance the basic knowledge on electronics, characteristic of waveguide
and nanotechnology so as to implement these in biomedical applications.
1.0
Thyristors and Other Devices:
1.1 Basic 4 Layer Devices
1.2 Silicon-Controlled Rectifier (SCR)
1.3 SCR Characteristics and Ratings
1.4 SCR Construction and Terminals Identification
1.5 SCR Application
1.6 Light-Activated SCR
1.7 Silicon-Controlled Switch
1.8 Gate Turn off Thyristor (GTO)
1.9 DIAC and TRIAC
1.10 Unijunction Transistor
1.11 Programmable Unijunction Transistor
1.12 Insulated Gate Bipolar Transistor (IGBT)
1.13 Phototransistors
1.14 Opto-isolators
(8 Hours)
2.0
Stability and Oscillators:
2.1 Stability
2.1.1 Condition for Stability
2.1.2 Nyquist Criteria
2.2 Oscillators
2.2.1 Oscillator Principle
2.2.2 Oscillator Types
2.2.3 Oscillator Criteria
2.3 Operational Amplifiers Based Sinusoidal Oscillators
2.3.1 Phase Shift Oscillator
2.3.2 Wien Bridge Oscillator
2.3.3 Quadrature Oscillator
2.3.4 Colpitt Oscillator
2.3.5 Hartley Oscillator
2.4 Relaxation Oscillator
2.5 Voltage Controlled Oscillator
2.6 Crystal Oscillator
2.7 Amplitude and Frequency Stabilization
2.8 Integrated-Circuit Based Timers
2.8.1 Operating Modes of the 555 Timer
2.8.1.1
Monostable Multivibrator
2.8.1.2
Astable Multivibrator
2.9 Signal Generators
2.10 Use of Oscillators and Signal Generators in Biomedical Application
(8 Hours)
3.0
Waveguides and Components:
3.1 Concept of Waveguide
3.2 Waveguide Components
3.3 Wave Propagation in the Guide
3.4 Rectangular and Circular Wave Guide
3.5 Modes in Waveguides
3.5.1 Transverse Electric (TE) Modes
3.5.2 Transverse Magnetic (TM) Modes
3.5.3 Higher Order Modes
3.6 Power Transmission and Attenuation in Waveguide
(14 Hours)
3.8 Waveguide Resonators
3.11 Tees and Magic Tees
3.12 Waveguide Corners, Bends, and Twists
3.13 Directional Couplers
3.14 Circulators and Isolators
3.15 Uses of Waveguides in Biomedical Application
5.0
Nanoelectronics:
5.1 Definition and Background of Nanoscience and Nanotechnology
5.2 Nanomaterials Generations
5.2.1 Top Down vs. Bottom up Techniques
5.2.2 Lithographic Process and its Limitations
5.2.3 Non-lithographic Techniques
5.3 Nanomaterials Characterization Tools/Devices and Properties for Biomedical Application
5.4 Carbon Nanostructures
5.4.1 Fullerenes
5.4.2 Carbon Nanotubes
5.5 1-D Nanostructures
3.5.1 Nanowires
3.5.2 Nanotubes
5.6 2-D Nanostructures
5.6.1 Thin Films
5.7 Single Electron Transistor
5.8 Molecular Machine
5.9 Nanobiometrics
5.10 Current and Future Biomedical Application of Nanomaterials
(15 Hours)
Laboratory Experiments:
Thyristors and Other Devices:
- Study of different type’s thyristor circuit.
- Examination of opto-isolators.
Oscillators:
- Examination of different types of Sunusoidal oscillator’s circuit.
- Study of Astable and Monostable multivibrator circuit using 555 timer.
- Examination of Signal generators using OP-AMP circuits.
Waveguide:
- Study of waveguide phenomena using a commercial kit.
Nanoelectronics:
- Study of characterization techniques.
- Synthesis and characterization of nonmaterial’s thin film.
References:
1. Rashid, “Power Electronics”, PHI.
2. Samuel Y. Liao, “Microwave Devices and Circuits,” PHI
3. C. S. S. R. Kumar, J. Hormes, C. Leuschner, Nanofabrication Towards Biomedical Applications, Techniques, Tools, Applications,
Wiley-Vch
4. Dennis Roddy & John Coolen, “Electronic Communications,” 4/E – PHI/Pearson
5. A.S. Sedra and K.C. Smith, “Microelectronic Circuits”, 2nd Edition, Holt, Rinehart and Winston, Inc., New York.
and Impact.