Categories

Solid-state Relays

Textbook

Limitations of Electromechanical Relays As versatile as…

Time-Delay Electromechanical Relays

Worksheets - Electromechanical

What does the normal status of an electrical switch refer to?…

Single-phase Induction Motors

Textbook

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

Protective Relay Circuits

Worksheets - Electromechanical

Protective relays are special power-sensing devices whose job it is to…

Introduction to Diodes And Rectifiers

Textbook

All About Diodes A diode is an electrical device allowing current to…

Motor Control Circuits

Textbook

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

Winding Configurations

Textbook

Transformers with Multiple Secondaries Transformers are very versatile…

Thyristor Application Circuits

Worksheets - Electromechanical

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

Switches, Process Actuated

Textbook

It is very important to keep in mind that the “normal”…

AC Bridge Circuits

Textbook

As we saw with DC measurement circuits, the circuit configuration…

What is Alternating Current (AC)?

Textbook

Most students of electricity begin their study with what is known as…

Special-output Gates

Textbook

Complementary Output Gates It is sometimes desirable to have a logic…

Performance-Based Assessments for Digital Circuit Competencies

Worksheets - Electromechanical

(Template)

AC Commutator Motors

Textbook

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

Contact “Normal” State and Make/Break Sequence

Textbook

Any kind of switch contact can be designed so that the contacts…

The Bipolar Junction Transistor (BJT) as a Switch

Textbook

Bipolar junction transistors (Also known as BJTs) can be used as an…

Digital Logic Functions

Textbook

We can construct a simple logic functions for our hypothetical lamp…

Tesla Polyphase Induction Motors

Textbook

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

Resonance

Worksheets - Electromechanical

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

The Silicon-Controlled Switch (SCS)

Textbook

If we take the equivalent circuit of an SCR and add another external…

Protective Relay Circuits

Worksheets - Electromechanical

Protective relays are special power-sensing devices whose job it is to…

Design Project: DC Motor

Worksheets - Electromechanical

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

Wattmeter Design

Textbook

Power in an electric circuit is the product (multiplication) of…

Computational Circuits

Textbook

When someone mentions the word “computer,” a digital…

Power Quality Measurement

Textbook

It used to be with large AC power systems that “power…

Kirchhoff’s Laws

Worksheets - Electromechanical

Many electronic circuits use what is called a split or a dual power…

DIY EE Lab - Setting Up a Home Electronics Lab

Textbook

To build the DIY electronics projects described in this textbook, you will need a small work area, a few tools, and some basic electronics supplies. This page describes the setup of a low-cost home electronics laboratory.

Introduction to Diodes And Rectifiers

Textbook

All About Diodes A diode is an electrical device allowing current to…

Voltage Divider Circuits

Worksheets - Electromechanical

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

Building Series-Parallel Resistor Circuits

Textbook

Once again, when building battery/resistor circuits, the student or…

Si Lab - BJT Common-collector Voltage Follower

Textbook

In this hands-on semiconductor electronics experiment, build a voltage follower amplifier using a bipolar junction transistor (BJT) in common-collector configuration and learn about circuit ground and impedance transformations.

Programmable Logic Technology

Worksheets - Electromechanical

Define the following acronyms as they apply to digital logic circuits:…

Flash ADC

Textbook

Also called the parallel A/D converter, this circuit is the simplest…

Magnetism

Worksheets - Electromechanical

A permanent magnet is a device that retains a magnetic field without…

Important Constants

Textbook

Euler’s Number Euler’s constant is an important value for…

Servo Motor Systems

Worksheets - Electromechanical

Explain the operation of this “H-bridge” motor control circuit: At…

Networks and Busses

Textbook

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

Microstrip Inductance Calculator

Tools

This calculator computes the inductance of a microstrip etched on a PCB.

Copper Wire Gauge Table

Textbook

Solid Cooper Wire Table Size Diameter (inches) Cross-sectional area…

Field-effect-controlled Thyristors

Textbook

Two relatively recent technologies designed to reduce the…

Clipper Circuits

Textbook

A circuit which removes the peak of a waveform is known as a clipper.…

Performance-Based Assessments for Semiconductor Circuit Competencies

Worksheets - Electromechanical

Thyristors

Worksheets - Electromechanical

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

Digital Signals and Gates

Textbook

While the binary numeration system is an interesting mathematical…

Practical Considerations - Batteries

Textbook

When connecting batteries together to form larger “banks”…

Basic Operational Amplifiers

Worksheets - Electromechanical

Determine the output voltage polarity of this op-amp (with reference…

DeMorgan’s Theorems

Textbook

A mathematician named DeMorgan developed a pair of important rules…

Divided Feedback

Textbook

If we add a voltage divider to the negative feedback wiring so that…

DIY EE Lab - Introduction to Electronics Projects

Textbook

To learn about electronics, you must eventually engage in hands-on experimentation. Knowledge gleaned from books alone has limited use in scientific endeavors. Troubleshooting a circuit can be as important as the knowledge gained from a properly functioning experiment.

Pulse Width Modulation

Textbook

Pulse Width Modulation (PWM) uses digital signals to control power…

Gate Universality

Textbook

NAND and NOR gates possess a special property: they are universal.…

Resistor Color Code Calculator and Chart—4 Band, 5 Band, or 6 Band Resistors

Tools

A handy all-in-one tool for reading resistor color code values for a 4 band resistor, 5 band resistor, or 6 band resistor.

Rules for Limits

Textbook

    RELATED WORKSHEETS: Calculus for Electric Circuits…

Series Circuit Rules

Textbook

Current Components in a series circuit share the same current: Itotal…

JFET Quirks

Textbook

Wiring Color Codes

Textbook

Wiring for AC and DC power distribution branch circuits are color…

Delta-Sigma ADC

Textbook

One of the more advanced ADC technologies is the so-called…

T-Pad Attenuator Calculator

Tools

This calculator helps you determine the values of the resistors R1 and R2 to be used for a T-pad attenuator.

Band-pass Filters

Textbook

How to Create Band-pass Filter There are applications where a…

Binary Addition

Textbook

The Rules of Binary Addition Adding binary numbers is a very simple…