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AC Motor Control Circuits

Worksheets - Motors

Perhaps the most challenging aspect of interpreting ladder diagrams,…

DC Motor Control Circuits

Worksheets - Motors

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

TTL Logic Gates

Worksheets - Motors

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…

What is Alternating Current (AC)?

Textbook

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

Boolean Algebra

Worksheets - Motors

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

Thyristor Application Circuits

Worksheets - Motors

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

Permissive and Interlock Circuits

Textbook

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

Motor Control Circuits

Textbook

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

Switch Types

Textbook

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

Electromechanical Relay Logic

Worksheets - Motors

In ladder logic symbolism, an electromechanical relay coil is shown as…

Three-phase Transformer Circuits

Textbook

Since three-phase is used so often for power distribution systems, it…

DC Generator Theory

Worksheets - Motors

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

Series and Parallel AC Circuits

Worksheets - Motors

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

Programmable Logic Controllers (PLC)

Textbook

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

AC Bridge Circuits

Textbook

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

Latch Circuits

Worksheets - Motors

What do you think this logic buffer gate will do, with the output…

Protective Relay Circuits

Worksheets - Motors

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

Contactors

Textbook

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

Encoders and Decoders

Worksheets - Motors

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

Three-phase Transformer Circuits

Textbook

Since three-phase is used so often for power distribution systems, it…

DC Motor Theory

Worksheets - Motors

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

Simple Combination Lock

Textbook

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

Winding Configurations

Textbook

Transformers with Multiple Secondaries Transformers are very versatile…

Special-output Gates

Textbook

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

Reluctance Motor

Textbook

The variable reluctance motor is based on the principle that an…

AC Bridge Circuits

Textbook

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

Digital Logic Functions

Textbook

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

The S-R Latch

Textbook

A bistable multivibrator has two stable states, as indicated by the…

Pulse Width Modulation

Textbook

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

Switches, Electrically Actuated (Relays)

Textbook

The structure behind ladder logic is based on the electrical ladder…

Inductive Reactance

Worksheets - Motors

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

Sensing AC Magnetic Fields

Textbook

PARTS AND MATERIALS Audio detector with headphones Electromagnet coil…

Build a Transformer

Textbook

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

Contactors

Textbook

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

Switches, Process Actuated

Textbook

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

Selsyn (Synchro) Motors

Textbook

Normally, the rotor windings of a wound rotor induction motor are…

CMOS 555 Long Duration Flyback LED Flasher

Textbook

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

Voltmeter Impact on Measured Circuit

Textbook

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

Performance-Based Assessments for Digital Circuit Competencies

Worksheets - Motors

(Template)

555 Hysteretic Oscillator

Textbook

PARTS AND MATERIALS One 9V Battery Battery Clip (Radio Shack catalog #…

Characteristic Impedance

Worksheets - Motors

Note the “50 ohm” rating printed on the jacket of the cable. What…

Digital Display Circuits

Worksheets - Motors

What is the purpose of a seven-segment decoder circuit? What is a…

Time Constant Calculations

Worksheets - Motors

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

The S-R Latch

Textbook

A bistable multivibrator has two stable states, as indicated by the…

Look-up Tables

Textbook

Having learned about digital memory devices in the last chapter, we…

Electromagnetic Induction

Textbook

While Oersted’s surprising discovery of electromagnetism paved…

Magnetic Units of Measurement

Textbook

If the burden of two systems of measurement for common quantities…

AC Power

Worksheets - Motors

If a sinusoidal voltage is applied to an impedance with a phase angle…

How to Use an Ammeter to Measure Current

Textbook

Parts and Materials   6-volt battery   6-volt incandescent…

Parallel Resistor-Inductor Circuits

Textbook

Let’s take the same components for our series example circuit…

The Common-source Amplifier (IGFET)

Textbook

Potentiometer as a Rheostat

Textbook

Learning Objectives Rheostat use Wiring a potentiometer as a rheostat…

Derivatives of Power Functions of e

Textbook

Example Derivatives of e Proportionality Constant When we say that a…

Switches, Hand Actuated

Textbook

A switch is an electrical component that can “make” or…

Antenna Downtilt and Coverage Calculator

Tools

This calculator will determine the correct antenna downtilt angle given the heights of the antennas and distance between them.

Resistors

Worksheets - Motors

Shown here is the schematic symbol for a resistor: What is the purpose…

Digital-to-Analog Conversion

Worksheets - Motors

If a pulse-width modulated (PWM) signal is sent to a passive…

The common-drain Amplifier (JFET)

Textbook

RELATED WORKSHEETS: JFET Amplifiers Worksheet

Voltmeter Usage

Textbook

PARTS AND MATERIALS Multimeter, digital or analog Assorted batteries…