Categories

Contact “Normal” State and Make/Break Sequence

Textbook

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

CMOS Logic Gates

Worksheets - Relays

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

TTL Logic Gates

Worksheets - Relays

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

Time-Delay Electromechanical Relays

Worksheets - Relays

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

Programmable Logic Controllers (PLC)

Textbook

Before the advent of solid-state logic circuits, logical control…

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

Textbook

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

Stepper Motor Calculator

Tools

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

Fuses

Textbook

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

Performance-Based Assessments for DC Circuit Competencies

Worksheets - Relays

(Template)

Hysteresis

Textbook

Thyristors are a class of semiconductor components exhibiting…

Step-up, Step-down, and Isolation Transformers

Worksheets - Relays

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

High Voltage Ohmmeters

Textbook

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

Circuit With a Switch

Textbook

PARTS AND MATERIALS 6-volt battery Low-voltage incandescent lamp…

Switches

Worksheets - Relays

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

Insulated Gate Bipolar Transistors

Worksheets - Relays

What is an Insulated Gate Bipolar Transistor (IGBT), and what…

Voltmeter Impact on Measured Circuit

Textbook

Every meter impacts the circuit it is measuring to some extent, just…

Resonance

Worksheets - Relays

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

Stepper Motors

Textbook

A stepper motor is a “digital” version of the electric…

The TRIAC

Textbook

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

Voltage Regulation

Textbook

As we saw in a few SPICE analyses earlier in this chapter, the output…

The J-K Flip-Flop

Textbook

Another variation on a theme of bistable multivibrators is the J-K…

Build a Transformer

Textbook

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

AC Motor Theory

Worksheets - Relays

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

CMOS Logic Gates

Worksheets - Relays

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…

Other Specialized Motors

Textbook

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

Data Flow

Textbook

Buses and networks are designed to allow communication to occur…

Boolean Algebraic Identities

Textbook

In mathematics, an identity is a statement true for all possible…

AC Inductor Circuits

Textbook

Resistors vs. Inductors Inductors do not behave the same way as…

Impedance Transformation

Textbook

Standing waves at the resonant frequency points of an open- or…

Basic Algebra and Graphing for Electric Circuits

Worksheets - Relays

Many different equations used in the analysis of electric circuits may…

Advanced Electromagnetism and Electromagnetic Induction

Worksheets - Relays

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

Introduction to Junction Field-effect Transistors (JFET)

Textbook

A transistor is a linear semiconductor device that controls current…

Summer and Subtractor OpAmp Circuits

Worksheets - Relays

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

Electron Versus Conventional Flow

Worksheets - Relays

In this electrical circuit, trace the direction of current through the…

Introduction to AC Motors

Textbook

After the introduction of the DC electrical distribution system by…

Voltage and Current

Textbook

As was previously mentioned, we need more than just a continuous path…

Edge Coupled Stripline Impedance Calculator

Tools

A calculator for computing the impedance of an edge coupled stripline.

Series and Parallel Inductors

Textbook

When inductors are connected in series, the total inductance is the…

Basic Circuit Troubleshooting

Worksheets - Relays

Determine if the light bulb will de-energize for each of the following…

Fail-safe Design

Textbook

Logic circuits, whether comprised of electromechanical relays or…

Historical, Nonmechanical Memory Technologies

Textbook

Perhaps the most ingenious technique was that of the delay line. A…

Permissive and Interlock Circuits

Textbook

A practical application of switch and relay logic is in control…

Waveform Analysis

Textbook

PARTS AND MATERIALS IBM-compatible personal computer with sound card,…

Binary Addition

Textbook

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