All About Circuits

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Bipolar Junction Transistors as Switches

Bipolar Junction Transistors as Switches

Solid-state switching circuits usually keep their constituent…


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Tesla Polyphase Induction Motors

Tesla Polyphase Induction Motors

Most AC motors are induction motors. Induction motors are favored due…


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Electric Shock

Electric Shock

It is sometimes said regarding electrical safety that, Ït’s not the…


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Memory Devices

Memory Devices

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


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Stepper Motors

Stepper Motors

Stepper Motor vs Servo Motor A stepper motor is a…


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AC Commutator Motors

AC Commutator Motors

Charles Proteus Steinmetz’s first job after arriving in America…


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AC Motor Theory

AC Motor Theory

Electromechanical watt-hour meters use an aluminum disk that is spun…


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Networks and Busses

Networks and Busses

The wires between the tank and the monitoring location is  called…


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DC Motor Control Circuits

DC Motor Control Circuits

How is it possible to electrically measure the torque output by a…


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Specific Troubleshooting Techniques

Specific Troubleshooting Techniques

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


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Series-Parallel DC Circuits

Series-Parallel DC Circuits

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


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Other Specialized Motors

Other Specialized Motors

Shaded Pole Induction Motor An easy way to provide starting torque to…


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Resonance

Resonance

The Q factor of a series inductive circuit is given by the following…


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AC Lab - Automotive Alternator as AC Generator

AC Lab - Automotive Alternator as AC Generator

In this hands-on AC electronics experiment, you will use an automotive alternator to generate three-phase AC voltage and learn how alternators can function as both generators and motors.


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Design Project: DC Motor

Design Project: DC Motor

The armature windings of your DC motor will have very low resistance.…


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Conventional Transistor Overview and Special Transistors

Conventional Transistor Overview and Special Transistors

A microcontroller is a specialized type of digital computer used to…


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Calculus for Electric Circuits

Calculus for Electric Circuits

∫f(x) dx Calculus alert! Calculus is a branch of mathematics that…


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Lorentz Force Calculator

Lorentz Force Calculator

This calculator will determine the combined Lorentz force exerted on a charged particle moving through both an electric field and a magnetic field.


Tools

Stepper Motors

Stepper Motors

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


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Wheatstone Bridge Calculator

Wheatstone Bridge Calculator

This calculator helps determine the resistance of a variable resistor within a Wheatstone bridge circuit or the differential voltage created across the bridge terminals.


Tools

Motor Control Circuits

Motor Control Circuits

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


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Inverting and Noninverting OpAmp Voltage Amplifier Circuits

Inverting and Noninverting OpAmp Voltage Amplifier Circuits

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


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Likely Failures in Proven Systems

Likely Failures in Proven Systems

The following problems are arranged in order from most likely to least…


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Some Examples with AC Circuits

Some Examples with AC Circuits

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


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Wire Microstrip Impedance Calculator

Wire Microstrip Impedance Calculator

A helpful tool for calculating the impedance of a wire microstrip.


Tools

Inductors

Inductors

An inductor is a passive two-terminal electrical component that…


Textbook

Using Multiple Combinational Circuits

Using Multiple Combinational Circuits

As an example of using several circuits together, we are going to make…


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Amplifiers

Amplifiers

Practical Benefit of Active Devices The practical benefit of active…


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Potentiometers

Potentiometers

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


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A 50-Ohm Cable?

A 50-Ohm Cable?

Early in my explorations of electricity, I came across a length of…


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Performance-Based Assessments for AC Circuit Competencies

Performance-Based Assessments for AC Circuit Competencies

(Template)


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Electrical Conduction in Semiconductors

Electrical Conduction in Semiconductors

In any electrically conductive substance, what are charge carriers?…


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Step-up, Step-down, and Isolation Transformers

Step-up, Step-down, and Isolation Transformers

Calculate the voltage output by the secondary winding of a transformer…


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Differential Equations

Differential Equations

As opposed to normal equations where the solution is a number, a…


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Data Flow

Data Flow

Buses and networks are designed to allow communication to occur…


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Integrated Circuits

Integrated Circuits

  A Logic Gate is assigned as an elementary building block of…


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Superconductivity

Superconductivity

Conductors lose all of their electrical resistance when cooled to…


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Metric Prefix Conversions

Metric Prefix Conversions

To express a quantity in a different metric prefix from how it was…


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Nonlinear Conduction

Nonlinear Conduction

“Advances are made by answering questions. Discoveries are made…


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Heat Sink Calculator

Heat Sink Calculator

This calculator helps determine the maximum temperature a device can withstand


Tools

Mutual Inductance

Mutual Inductance

If two coils of wire are brought into close proximity with each other…


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Digital Lab - 7-segment LED Display

Digital Lab - 7-segment LED Display

In this hands-on electronics experiment, you will control a 7-segment binary-coded decimal (BCD) display and learn about active-low and active-high logic inputs.


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