A modern method of electrical power control involves inserting a…
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With BogusBus, our signals were very simple and straightforward: each…
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In very simple, qualitative terms, rate the impedance of capacitors…
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What is Attenuators? Attenuators are passive devices. It is…
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This calculator allows you to solve for any of the six variables in the Friis formula for RF transmission: transmitter power, transmitter gain, receiver power, receiver gain, frequency, or distance.
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Normally, the rotor windings of a wound rotor induction motor are…
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Varicap or varactor diodes A variable capacitance diode is known as a…
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The wires between the tank and the monitoring location is called…
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This is a schematic for a simple VCO: The oscillator is of the RC…
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Impedance Matching Because transformers can step voltage and current…
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What is a harmonic frequency? If an oscillator circuit outputs a…
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Aside from the issues of the physical network (signal types and…
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Just as devices have been made to measure certain physical quantities…
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A waveguide is a special form of transmission line consisting of a…
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One of the more fascinating applications of electricity is in the…
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What does the acronym RF stand form, in reference to radio-related…
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Don’t just sit there! Build something!! Learning to analyze digital…
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What shape of voltage waveform would you expect to measure (using an…
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Pulse Width Modulation (PWM) uses digital signals to control power…
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Whenever there is a mismatch of impedance between transmission line…
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Point-to-Point Connecting two digital devices with a network, would…
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What shape of voltage waveform would you expect to measure (using an…
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This calculator allows you to solve for any of the six variables in the Friis formula for RF transmission: transmitter power, transmitter gain, receiver power, receiver gain, frequency, or distance.
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A calculator for solving the capacitance, reactance, and admittance of a capacitor.
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In the design of large and complex digital systems, it is often…
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In the chapter on mixed-frequency signals, we explored the concept of…
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This calculator computes the noise figure and noise temperature in a system
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In order to work with complex numbers without drawing vectors, we…
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This calculates values of the inductance, capacitance of an inductor and capacitor used in a Butterworth LC bandpass filter.
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A tool designed to convert RF power from watts to decibels and vice versa
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Don’t just sit there! Build something!! Learning to analyze digital…
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A principal consideration for industrial control networks, where the…
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This is a schematic for a simple VCO: The oscillator is of the RC…
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In our study of AC circuits thus far, we’ve explored circuits…
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Since three-phase is used so often for power distribution systems, it…
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Just as devices have been made to measure certain physical quantities…
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This calculator helps you determine the values of the resistors R1 and R2 to be used for a Pi Attenuator.
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Decibel as Absolute Unit of Power It is also possible to use the…
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When an electric current is passed through a coil of wire, what…
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This calculator helps you determine the values of the resistors R1 and R2 to be used for a bridged-tee attenuator.
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De Forest’s Audion tube came to be known as the triode tube…
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Series and Parallel Resistances Series and Parallel…
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Counting practice: count from zero to thirty-one in binary, octal, and…
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Don’t just sit there! Build something!! Learning to mathematically…
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Metric Prefixes Yotta = 1024 Symbol: Y Zetta = 1021 Symbol: Z…
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Don’t just sit there! Build something!! Learning to mathematically…
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Up to now, every circuit that was presented was a combinatorial…
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Capacitors Vs. Resistors Capacitors do not behave the same as…
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This calculator will determine the instantaneous energy, sustained energy, and power consumed by an electrical system given two of the three electrical parameters (voltage, current, or resistance) and the time.
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SPICE analysis of Electrical Isolation Aside from the ability to…
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Whenever electrons flow through a conductor, a magnetic field will…
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Older electrical schematics showed connecting wires crossing, while…
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This calculator computes the resonant frequency of a parallel inductor and capacitor "tank" circuit.
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Let’s take the same components for our series example circuit…
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A permanent magnet is a device that retains a magnetic field without…
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Don’t just sit there! Build something!! Learning to mathematically…
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We know that the current in a series circuit may be calculated with…
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It should be common-sense knowledge that liquids flow through…
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Also called the parallel A/D converter, this circuit is the simplest…
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This calculator will compute the required resistor ratio (R2/R1) and reference voltage (VREF) to create the desired high (VTH) and low (VTL) threshold voltages in a non-inverting comparator circuit with hysteresis (commonly called a Schmitt trigger).
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