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Basic Engineering Skills - Assessments Launched
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Course Code - 24RPA ECE/EEE 005
Basic Circuit Design
Basic Circuit Design
Basic Circuit Design
Basic Circuit Design
Electronics involves the study of components like resistors, LEDs, potentiometers, and solar cells, which control voltage, current, and resistance in circuits. Understanding Ohm’s Law, power ratings, and circuit configurations is essential for designing efficient electronic systems. Practical applications include brightness control, voltage division, and energy conversion using solar cells.
Section 1: Resistors and Ohm's Law
Section 1: Resistors and Ohm's Law
Key Concept: Resistors limit current flow in electronic circuits.
Ohm’s Law:
Formula: V=IRV = IRV=IR
V: Voltage (volts), I: Current (amps), R: Resistance (ohms)
Current Flow:
Conventional Current: Positive to negative.
Electron Flow: Negative to positive.
Resistance & Current Relationship:
Inverse Relationship: Increasing resistance decreases current and vice versa.
Example calculations demonstrating current changes based on resistance.
Practical Application: Understanding how resistors control current flow in circuits.
Section 2: Power Rating and Resistor Configurations
Section 2: Power Rating and Resistor Configurations
Section 3: Light Bulbs and LEDs
Section 3: Light Bulbs and LEDs
Incandescent Light Bulbs:
Converts electricity into light through incandescence.
Inefficient: Wastes energy as heat.
LEDs (Light Emitting Diodes):
Directly converts electricity to light with higher efficiency.
Less heat generation, monochromatic light source.
Typical voltage drop & current range for LEDs.
Current Limiting Resistors for LEDs:
Required to prevent burnout.
Calculation of resistor value using Ohm’s Law and Kirchhoff’s Voltage Law.
Section 4: Potentiometers and Brightness Control
Section 4: Potentiometers and Brightness Control
Potentiometers:
Variable resistors used for adjusting resistance in a circuit.
Controls voltage & current.
Used in voltage divider circuits.
Brightness Control Application:
Using a potentiometer to control LED brightness.
Circuit analysis and calculations for resistor values.
Applying Ohm’s Law and Kirchhoff’s Voltage Law for adjustments.
Section 5: Voltage Dividers and Solar Cells
Section 5: Voltage Dividers and Solar Cells
Voltage Dividers:
Used to create specific voltage levels.
Potentiometers can be part of a voltage divider circuit.
Potentiometer Connection Variations:
Different wiring configurations affect circuit resistance.
Solar Cells:
Convert light energy into electricity.
Functions as a DC power source.
Opposite function of an LED (absorbs light instead of emitting).
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