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Time-Delay Electromechanical Relays

Worksheets - Relays

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

CMOS Logic Gates

Worksheets - Relays

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

Programmable Logic Controllers (PLC)

Textbook

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

TTL Logic Gates

Worksheets - Relays

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

Contact “Normal” State and Make/Break Sequence

Textbook

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

Digital Logic Functions

Textbook

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

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

Textbook

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

Other Specialized Motors

Textbook

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

Encoders and Decoders

Worksheets - Relays

What does it mean, in general terms, to encode something? Conversely,…

Circuit With a Switch

Textbook

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

Fuses

Textbook

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

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…

Sensing AC Magnetic Fields

Textbook

PARTS AND MATERIALS Audio detector with headphones Electromagnet coil…

Step-up, Step-down, and Isolation Transformers

Worksheets - Relays

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

Basic Electromagnetic Relays

Worksheets - Relays

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

Protective Relay Circuits

Worksheets - Relays

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

Boolean Algebra

Worksheets - Relays

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

Thyristor Application Circuits

Worksheets - Relays

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

DC Motor Control Circuits

Worksheets - Relays

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

Inductive Reactance

Worksheets - Relays

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

Performance-Based Assessments for Digital Circuit Competencies

Worksheets - Relays

(Template)

DC Motor Theory

Worksheets - Relays

If the ends of a wire loop are attached to two half-circular metal…

The Silicon-Controlled Switch (SCS)

Textbook

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

Simple Combination Lock

Textbook

PARTS AND MATERIALS 4001 quad NOR gate (Radio Shack catalog #…

The J-K Flip-Flop

Textbook

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

Design Project: Event Counter

Worksheets - Relays

If your event sensing switch is mechanical in nature, you will likely…

Rectifying Diodes

Worksheets - Relays

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

Universal Shift Registers: Parallel-in, Parallel-out

Textbook

The purpose of the parallel-in/ parallel-out shift register is to take…

Polarity of voltage drops

Textbook

When using conventional current flow, we can trace the direction of…

Ionization (gas-filled) Tubes

Textbook

So far, we’ve explored tubes which are totally…

Counters

Worksheets - Relays

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

Potentiometric Voltmeter

Textbook

PARTS AND MATERIALS Two 6 volt batteries One potentiometer, single…

Decibels Equations

Textbook

  RELATED WORKSHEETS: Decibel Measurements Worksheet

LED Resistor Calculator

Tools

An LED resistance calculator is perfect for when you have a single LED and need to know which resistor you should use.

Static Electricity

Worksheets - Relays

What does it mean for an object to have an electric charge? Give an…

Waveguide Calculator (Rectangular)

Tools

This tool calculates the cutoff frequency of a rectangular waveguide

Other Specialized Motors

Textbook

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

Basic AC-DC Power Supplies

Worksheets - Relays

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

Rectangle Loop Inductance Calculator

Tools

This calculator helps you compute the inductance of a rectangle loop.

Kirchhoff’s Current Law (KCL)

Textbook

What Is Kirchhoff’s Current Law? Kirchhoff’s Current Law,…

Meter Check of a Transistor (BJT)

Textbook

Bipolar transistors are constructed of a three-layer semiconductor…

Questions to Ask Before Proceeding

Textbook

Has the system ever worked before? If yes, has anything happened to…

Octal and Hexadecimal to Decimal Conversion

Textbook

Although the prime intent of octal and hexadecimal numeration systems…

Design Project: Intercom System

Worksheets - Relays

Design a passive circuit that will create a "split” ( V/-V) power…

Inductance, Reactance, and Admittance Calculator

Tools

This calculator gives the reactance and admittance of an inductor or the inductance given the reactance of an inductor