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Basic Circuit Analysis
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Resistor
Limits the flow of electric current in a circuit.
Capacitor
Stores energy in an electric field.
Inductor
Stores energy in a magnetic field.
Diode
Allows current to flow in only one direction.
Transistor
Used to amplify or switch electronic signals.
Operational Amplifier
Performs mathematical operations such as amplification.
Ohm's Law
Relation between voltage, current, and resistance.
Kirchhoff's Voltage Law (KVL)
The sum of all voltages around a closed loop is zero.
Kirchhoff's Current Law (KCL)
The sum of currents entering a junction equals the sum leaving.
Thevenin's Theorem
Any linear circuit can be simplified to a single voltage source and series resistance.
Norton's Theorem
Any collection of voltage sources and resistors with two terminals can be replaced by a single current source in parallel with a single resistor.
Superposition Theorem
In a linear circuit with several sources, the voltage/current is the algebraic sum of the voltages/currents from each source acting alone.
Maximum Power Transfer Theorem
Maximum power is transferred when the load resistance equals the Thevenin resistance of the circuit supplying power.
Voltage Divider
Divides input voltage into a lower output voltage based on the ratio of the resistors.
Current Divider
Divides input current into a lower output current by parallel resistors.
Potentiometer
A variable resistor often used to adjust levels.
Relay
An electrically operated switch using electromagnetism.
Filter
Passes signals within a certain frequency range and attenuates signals outside that range.
Oscillator
Generates periodic electronic signals.
Varistor
Protects circuits against excessive transient voltages by changing resistance.
Transformer
Transfers electrical energy between circuits through electromagnetic induction.
Zener Diode
Allows current to flow in the reverse direction when voltage surpasses the Zener voltage.
Logic Gates
Performs basic logical functions in digital circuits.
Multiplexer
Selects one of several input signals and forwards the selected input into a single line.
Demultiplexer
Takes a single input signal and selects one of many data-output-lines.
Integrated Circuit (IC)
A set of electronic circuits on one small plate ('chip') of semiconductor material.
Rectifier
Converts alternating current (AC) into direct current (DC).
LC Circuit
A circuit containing an inductor (L) and a capacitor (C).
BJT (Bipolar Junction Transistor)
A type of transistor that uses both electron and hole charge carriers.
FET (Field Effect Transistor)
A transistor that uses an electric field to control the shape and hence the conductivity of a channel.
PCB (Printed Circuit Board)
Provides mechanical support and electrical connection for electronic components.
Thyristor
A solid-state semiconductor device with four layers of alternating N and P-type material.
DC Motor
Converts direct current electrical energy into mechanical energy.
AC Motor
Converts alternating current electrical energy into mechanical energy.
Photodiode
Converts light into an electrical current.
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