Inductive Reactance

Don’t just sit there! Build something!! Learning to mathematically…

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Oscilloscope Trigger Controls

A very useful tool for observing rotating objects is a strobe light.…

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Intermediate Electromagnetism and Electromagnetic Induction

As an electric current is passed through a coil of wire, it creates a…

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Motor Control Circuits

The interlock contacts installed in the previous section’s motor…

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AC Generator Theory

If an electric current is passed through this wire, which direction…

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AC Lab - Induction Motor

In this hands-on AC electronics experiment, build a simple AC permanent capacitor split-phase induction motor and learn the principles of AC induction motor function.

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Bipolar Junction Transistors as Switches

Solid-state switching circuits usually keep their constituent…

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Single-phase Induction Motors

A three-phase motor may be run from a single-phase power source.…

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Some Examples with AC Circuits

Let’s connect three AC voltage sources in series and use complex…

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More on Spectrum Analysis

Computerized Fourier analysis, particularly in the form of the FFT…

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Timer Circuits

Don’t just sit there! Build something!! Learning to analyze digital…

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Scientific Notation

In many disciplines of science and engineering, very large and very…

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Transistor Ratings and Packages (IGFET)

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Current Divider Circuits

Don’t just sit there! Build something!! Learning to mathematically…

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Oscillator Circuits

Phase shift oscillator. R1C1, R2C2, and R3C3 each provide 60° of…

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Inverting and Noninverting OpAmp Voltage Amplifier Circuits

Don’t just sit there! Build something!! Learning to mathematically…

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Specific Troubleshooting Techniques

After applying some of the general troubleshooting tips to narrow the…

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Digital Memory Terms and Concepts

When we store information in some kind of circuit or device, we not…

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Design Project: Dual-output AC-DC Power Supply

Safety is very important when designing and/or building a device…

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Synchronous Counters

What is a Synchronous Counter? A synchronous counter, in contrast to…

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Making a Venn Diagram Look Like a Karnaugh Map

Starting with circle A in a rectangular A’ universe in figure…

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Digital Logic Signals

A rheostat (variable resistor) and a switch are both examples of…

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Transistor Biasing Calculations

Although transistor switching circuits operate without bias, it is…

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Capacitors

Identify some of the different types of capacitors, and their…

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The DIAC

Like all diodes, Shockley diodes are unidirectional devices; that is,…

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Miscellaneous Diode Applications

Don’t just sit there! Build something!! Learning to mathematically…

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Flyback Switch Mode Regulator Calculator

A calculator for computing several parameters needed in the design of a flyback switch mode regulator

Tools

Brushless DC Motor

Brushless DC motors were developed from conventional brushed DC motors…

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Electrical Energy Calculator

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.

Tools

Advanced Electromagnetism and Electromagnetic Induction

∫f(x) dx Calculus alert! Electronic power conversion circuits known…

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“Long’’ and “Short’’ Transmission Lines

In DC and low-frequency AC circuits, the characteristic impedance of…

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Monostable Multivibrators

We’ve already seen one example of a monostable multivibrator in…

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Electrons and “holes’’

Pure semiconductors are relatively good insulators as compared with…

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Scientific Notation

In many disciplines of science and engineering, very large and very…

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Magnetic Units of Measurement

If the burden of two systems of measurement for common quantities…

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Derivative of a Constant

    (“c” being a constant)   RELATED…

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Coil Inductance Calculator

This calculator computes the inductance of a wire coil.

Tools

AC Lab - Noise Cancellation

In this hands-on AC electronics experiment, you will use an AC voltage source connected to speakers to learn about sound waves and the foundational principle used in noise cancelling headphones.

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Relay Construction

Electricity and Magnetism An electric current through a conductor will…

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Design Project: Pulse-Width Modulation (PWM) Signal Generator

What shape of voltage waveform would you expect to measure (using an…

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Hysteresis

Thyristors are a class of semiconductor components exhibiting…

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The S-R Latch

A bistable multivibrator has two stable states, as indicated by the…

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Mixed-Frequency Signals

What is a harmonic frequency? If an oscillator circuit outputs a…

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Digital Signals and Gates

While the binary numeration system is an interesting mathematical…

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Analysis Options

AC ANALYSIS: General form: .ac [curve] [points] [start] [final]…

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Standing Waves and Resonance

Whenever there is a mismatch of impedance between transmission line…

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Stripline Trace Width Calculator

A calculator designed to calculate the trace width of a stripline based on the maximum current rating

Tools

Diode Ratings

In addition to forward voltage drop (Vf) and peak inverse voltage…

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