Categories

Motor Control Circuits

Textbook

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

CMOS Logic Gates

Worksheets - Switches

Counting practice: count from zero to thirty-one in binary, octal, and…

Fail-safe Design

Textbook

Logic circuits, whether comprised of electromechanical relays or…

TTL Logic Gates

Worksheets - Switches

Counting practice: count from zero to thirty-one in binary, octal, and…

CMOS 555 Long Duration Flyback LED Flasher

Textbook

PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…

Inductive Reactance

Worksheets - Switches

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

What is Alternating Current (AC)?

Textbook

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

Series and Parallel AC Circuits

Worksheets - Switches

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

Contactors

Textbook

All About Contactors When a relay is used to switch a large amount of…

The Junction Field-effect Transistor (JFET) as a Switch

Textbook

Like its bipolar cousin, the field-effect transistor may be used as an…

Switches

Worksheets - Switches

What is the purpose of the switch shown in this schematic diagram?

Switch Types

Textbook

Though it may seem strange to cover the elementary topic of electrical…

Boolean Algebra

Worksheets - Switches

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

AC Bridge Circuits

Textbook

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

Switch Contact Design

Textbook

A switch can be constructed with any mechanism bringing two conductors…

Vacuum Tube Audio Amplifier

Textbook

PARTS AND MATERIALS One 12AX7 dual triode vacuum tube Two power…

Relay Construction

Textbook

Electricity and Magnetism An electric current through a conductor will…

Commutating Diode

Textbook

PARTS AND MATERIALS 6 volt battery Power transformer, 120VAC step-down…

Thyristor Application Circuits

Worksheets - Switches

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

Monostable Multivibrators

Textbook

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

Performance-Based Assessments for DC Circuit Competencies

Worksheets - Switches

(Template)

Switch Types

Textbook

Though it may seem strange to cover the elementary topic of electrical…

Stepper Motor Calculator

Tools

A tool designed to calculate the maximum speed, minimum time per step and maximum power of a stepper motor

Electromagnetism

Textbook

The discovery of the relationship between magnetism and electricity…

Arc Flash and Arc Blast

Worksheets - Switches

Electromechanical relays used to start and stop high-power electric…

The Junction Field-effect Transistor (JFET) as a Switch

Textbook

Like its bipolar cousin, the field-effect transistor may be used as an…

Contact “Normal” State and Make/Break Sequence

Textbook

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

Light-Pulse Switch

Worksheets - Switches

It is fairly important to use large value resistors (10 MΩ works…

Inductor Commutating Circuits

Textbook

A popular use of diodes is for the mitigation of inductive…

Polyphase Motor Design

Textbook

AC Motors Perhaps the most important benefit of polyphase AC power…

Build a Transformer

Textbook

PARTS AND MATERIALS Steel flat bar, 4 pieces Miscellaneous bolts,…

DC Motor Control Circuits

Worksheets - Switches

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

Tesla Polyphase Induction Motors

Textbook

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

Fuses

Textbook

Normally, the ampacity rating of a conductor is a circuit design…

Thyristor Application Circuits

Worksheets - Switches

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”…

Motor Control Circuits

Textbook

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

High Voltage Ohmmeters

Textbook

Most ohmmeters of the design shown in the previous section utilize a…

Sensing AC Magnetic Fields

Textbook

PARTS AND MATERIALS Audio detector with headphones Electromagnet coil…

Lenz’s Law and Faraday’s Law Calculator

Tools

This calculator uses Faraday's and Lenz's laws to calculate the magnitude and polarity of the induced electromotive force (EMF) caused by a change in magnetic flux through a closed-loop coil.

The TRIAC

Textbook

SCRs are unidirectional (one-way) current devices, making them useful…

DC Generator Theory

Worksheets - Switches

Generators used in battery-charging systems must be regulated so as to…

Susceptance and Admittance

Textbook

What is Conductance? In the study of DC circuits, the student of…

Oscillator Circuits

Worksheets - Switches

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

What is Network Analysis?

Textbook

Generally speaking, network analysis is any structured technique used…

Multiplexers

Textbook

A multiplexer, abbreviated mux, is a device that has multiple inputs…

Measurements of AC Magnitude

Textbook

So far we know that AC voltage alternates in polarity and AC current…

Arithmetic with Scientific Notation

Textbook

The benefits of scientific notation do not end with ease of writing…

Design Project: Power Inverter

Worksheets - Switches

A common topology for DC-AC power converter circuits uses a pair of…

Diodes

Textbook

A diode is an electronics component made from a combination of a…

Polyphase Motor Design

Textbook

AC Motors Perhaps the most important benefit of polyphase AC power…

Digital Logic With Feedback

Textbook

With simple gate and combinational logic circuits, there is a definite…

Open-Loop OpAmp Circuits

Worksheets - Switches

Determine what the magnitude and polarity of the voltmeter’s…

Factors Affecting Capacitance

Textbook

There are three basic factors of capacitor construction determining…

The Silicon-Controlled Switch (SCS)

Textbook

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

Edge Coupled Trace Inductance Calculator

Tools

This calculator helps you compute for the inductance of an edge coupled trace.

Successive Approximation ADC

Textbook

One method of addressing the digital ramp ADC’s shortcomings is…

Electron Tubes

Textbook

Cathode:   This is the electrode that is heated and emits the…

Current Divider

Textbook

PARTS AND MATERIALS Calculator (or pencil and paper for doing…

Resistor Color Codes

Textbook

Try out our Resistor Color Code Calculator in our Tools section.…