This Report is yet to be approved by a Coordinator.
22 / 3 / 2025
Electronics Design
Task - 01: Engineer’s Swiss Army Knife
objective: complete the MATLAB Onramp course
Syllabus covered:
- MATLAB environment & Command Window
- Variables and assignment
- Arithmetic operations
- Arrays and matrices
- Indexing and slicing
- Data types
- Functions and function calls
- Logical operations and comparisons
- Conditional statements (if, else)
- Loops (for, while)
- Plotting and visualizations (plot, xlabel, title, etc.)
- Scripts and script files
- Importing data
- Basic debugging and error messages
Task - 02: Cut Pass Repeat
Objective: design a low pass band filter using IC747 Design Parameter's: Amplify the signal to 1.5 times the input waveform. cut-off range 4-10kHz
Low Pass Filter
Green: Input;Blue: Output
Parameters:
- Fm = ((F_low)(F_high))^1/2 = 6.32k Ohm
- Band Width(BW): (F_high)-(F_low)
- Quality Factor(Q): Q = Fm/BW = 1.053
Component specs:
- Capacitors (C): 1nF, standard capacitor value.
- Resistor (R2): R2 = Q/(pi)x(Fm)x(C) = 53K Ohm
- Resistor (R1): Gain = R2/2(R1) = 17.67k Ohm
- Resistor (R3): R3 = (gain)x(R1)/(2(Q)^2 + gain)
- Resistor (R4): R4 = R1 || R3 = 5.31K Ohm
Task - 03: SPICEy Code
Objective: Write Spice Code and simulate the following
- MOS Inverter:
- AND Gate:
- OR Gate:
Task - 04: The Power Shuffle: Buck-Boost Edition
Objective: Design the following
- 1.5V to 5V DC-DC Boost Converter
- 12V to 5V DC - DC Buck Converter
DC-DC Buck Converter:
Design Parameter's:
- Duty Cycle(D): D = (V_out)/(V_in) = .416
- Inductor Selection(L): L = ((1-D) X (V_out))/(Ripple Current)X(f_sw) = 104uH
- Capacitor(C): C = (Ripple Current)/((8)x(Ripple Voltage)x(f_sw)) = 50uF
- Diode/Rectifier Selection: Use a simple Schottky Diode
Setting up N-MOS with PWM as a switch:
- PULSE(0 12 0 10n 10n 4.16u 10u)
DC-DC Boost Converter:
Design Parameter's:
- Duty Cycle = (1 - (V_in)/(V_out)) = 70%
- Inductor Calculation(L): L = ((V_in)x(D)/(f_sw)x(Ripple Current)) = 47uH
- Capacitor(C_out): C_out = ((I_out)x(D)/(f_sw)x(Ripple Voltage)) = 28uF
- Diode(D) = Choose A Schottky diode
Setting up N-MOS with PWM as a switch:
- PULSE(0 5 0 10n 10n 1.4u 2u)
Mechanical Design
Task - 03:Prerequisite for assembly in Fusion 360
Objectives: Learn the difference between bodies and components in fusion 360
BODIES:
- Single solid shapes in your design.
- Used for basic parts or geometry.
- Cannot move independently.
- Ideal for simple, single-part designs.
COMPONENTS:
- Organizational containers that can hold bodies, sketches, and features.
- Represent separate parts in an assembly.
- Can move, rotate, and be joined to other components.
- Ideal for complex, multi-part assemblies.