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Questions and Answers
What is the decimal equivalent of the binary number 1011?
What is the decimal equivalent of the binary number 1011?
What is the binary representation of the decimal number 22?
What is the binary representation of the decimal number 22?
Which logic gate outputs a '1' only if all of its inputs are '1'?
Which logic gate outputs a '1' only if all of its inputs are '1'?
Which of the following circuits are considered linear circuits?
Which of the following circuits are considered linear circuits?
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What is the primary function of a PCB in an AC-DC power supply?
What is the primary function of a PCB in an AC-DC power supply?
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In PCB etching, what is the purpose of the photoresist?
In PCB etching, what is the purpose of the photoresist?
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Which of these is NOT a key component found on the PCB of an AC-DC power supply?
Which of these is NOT a key component found on the PCB of an AC-DC power supply?
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What is the main advantage of using a well-planned PCB layout in an AC-DC power supply?
What is the main advantage of using a well-planned PCB layout in an AC-DC power supply?
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Flashcards
Electronics
Electronics
Branch of physics and engineering focused on electrons in circuits.
Binary System
Binary System
Numerical system using only two digits: 0 and 1.
Binary to Decimal Conversion
Binary to Decimal Conversion
Process of adding powers of 2 for binary digits of '1'.
Decimal to Binary Conversion
Decimal to Binary Conversion
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Logic Gates
Logic Gates
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Linear Circuits
Linear Circuits
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Printed Circuit Board (PCB)
Printed Circuit Board (PCB)
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PCB Etching
PCB Etching
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Study Notes
Electronics
- Electronics is the branch of physics and engineering that deals with the behavior and application of electrons in electrical circuits.
- It involves the design, construction, and operation of electronic devices, and systems.
- Electronic devices often use semiconductors, such as silicon, to control the flow of electrons.
Binary to Decimal Conversion
- Binary system uses only two digits: 0 and 1.
- Each digit in a binary number represents a power of 2.
- To convert a binary number to decimal, add the values of the positions where a '1' appears.
Decimal to Binary Conversion
- Decimal system uses digits from 0 to 9.
- To convert a decimal number to binary, repeatedly divide the decimal number by 2.
- The remainders, read in reverse order are the binary representation.
Logic Gates
Truth tables- help understand the behavior of logic gate
- Logic gates- are fundamental building blocks of digital circuits.
- They perform basic logical operations on binary inputs to produce a binary output.
- Common logic gates include AND, OR, NOT, NAND, NOR,
- AND gates gives high output a '1' only if all inputs are '1',
- OR gates give a high output '1' if all of its Input are "1".
- NOT gates inverter the input.
- NAND gates output a '0' only if all inputs are '1'.
- NOR gates output a '0' if all inputs are '1'.
EXNOR GATE (exclusive-nor gate) does the opposite to the Error gate. Gives a high output either, but not both, if two inputs are high.
EXOR Gate (exclusive or gate) gives a high output if either, but not both, if two inputs are high.
Linear Circuits
- ✓Linear circuits operate on the principle of superposition.
- •The output of a linear circuit is a linear combination of its inputs.
- •The output is directly proportional to the input.
- •Important properties of linear circuits include linearity, superposition, and homogeneity.
- Examples of linear circuits include amplifiers, filters, and oscillators but excluding rectifiers and comparators.
Printed Circuit Board (PCB) of AC-DC Power Supply
- • Main purpose is to reduce the space and to troubleshoot easily when problem occurs.
- • Copper Clad- has conductors that are thin strips of copper
- - bonded to a baseboard called subtrate.
- •two common substrate materials are phenolic and epoxy plastic.
- A PCB for an AC-DC power supply houses components like transformers, rectifiers, capacitors, and regulators.
- The physical layout is crucial, minimizing signal paths for efficiency and stability.
- This arrangement efficiently converts AC to DC and delivers regulated power to the output.
- The design of the layout in the PCB impacts efficiency. A well-planned and implemented layout minimizes signal interference and provides enough space for components to dissipate heat.
PCB Etching
- •PCB etching is a process used to create conductive pathways on a PCB.
- • process where unnecessary copper is removed to leave the individual tracks pr connections of the circuit.
- -A copper-clad laminate is used as the substrate.
- -A layer of photoresist is applied to the PCB and exposed to UV light through a stencil or mask.
- -The exposed photoresist protects the copper beneath.
- -The unexposed photoresist is dissolved.
- -The unprotected copper is etched away through an etchant (acid).
- -The remaining copper forms the desired circuit patterns.
AC-DC Power Supply
- AC-DC power supplies convert alternating current (AC) to direct current (DC).
- These supplies are crucial in electronic devices.
- A step-down transformer reduces the AC voltage.
- A rectifier converts AC to pulsating DC.
- Capacitors smooth the pulsating DC to a more stable DC output.
- A regulator maintains a constant output voltage regardless of load variations.in
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Description
This quiz covers essential concepts in electronics, including binary to decimal conversion and the function of logic gates. Learn how electronic devices operate and the significance of the binary number system in digital circuits. Test your knowledge on these foundational topics in electronics.
