Categories

Special-output Gates

Textbook

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

Linear Computational Circuitry

Worksheets - Electromechanical

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

Switches, Hand Actuated

Textbook

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

AC Motor Control Circuits

Worksheets - Electromechanical

Perhaps the most challenging aspect of interpreting ladder diagrams,…

DC Generator Theory

Worksheets - Electromechanical

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

Switches

Worksheets - Electromechanical

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

Contactors

Textbook

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

Vacuum Tube Audio Amplifier

Textbook

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

Arc Flash and Arc Blast

Worksheets - Electromechanical

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

Inductive Reactance

Worksheets - Electromechanical

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

The Silicon-Controlled Switch (SCS)

Textbook

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

Sensing AC Magnetic Fields

Textbook

PARTS AND MATERIALS Audio detector with headphones Electromagnet coil…

Light-Pulse Switch

Worksheets - Electromechanical

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

Thyristor Application Circuits

Worksheets - Electromechanical

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

Flyback Switch Mode Regulator Calculator

Tools

A calculator for computing several parameters needed in the design of a flyback switch mode regulator

High Voltage Ohmmeters

Textbook

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

Hysteresis

Textbook

Thyristors are a class of semiconductor components exhibiting…

Monostable Multivibrators

Textbook

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

Series and Parallel AC Circuits

Worksheets - Electromechanical

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

Electromechanical Relay Logic

Worksheets - Electromechanical

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

Introduction to Insulated-gate Field-effect Transistors

Textbook

As was stated in the last chapter, there is more than one type of…

Friis Transmission Calculator

Tools

This calculator computes the power received by an antenna using Friis formula

Physiological Effects of Electricity

Textbook

Most of us have experienced some form of electric “shock,”…

Switches, Process Actuated

Textbook

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

Bipolar Transistor Biasing Circuits

Worksheets - Electromechanical

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

Performance-Based Assessments for Semiconductor Circuit Competencies

Worksheets - Electromechanical

Other Specialized Motors

Textbook

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

Circuit Components

Textbook

Remember that this tutorial is not exhaustive by any means, and that…

Look-up Tables

Textbook

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

PN Junctions

Worksheets - Electromechanical

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

General Troubleshooting Tips

Textbook

When first approaching a failed or otherwise misbehaving system, the…

Solving for Unknown Time

Textbook

Sometimes it is necessary to determine the length of time that a…

An Electric Pendulum

Textbook

Capacitors store energy in the form of an electric field, and…

Mesh Current Method and Analysis

Textbook

The Mesh-Current Method, also known as the Loop Current Method, is…

Calculus for Electric Circuits

Worksheets - Electromechanical

∫f(x) dx Calculus alert! Calculus is a branch of mathematics that…

Electron Versus Conventional Flow

Worksheets - Electromechanical

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

Conductors and Insulators

Worksheets - Electromechanical

Given two lengths of metal wire, which one will have the least…

Op-Amp Practical Considerations

Textbook

Real operational amplifiers have some imperfections compared to an…

Component Modeling

Worksheets - Electromechanical

When plotted on a curve tracer, the characteristic curve for a normal…

Lock-out / Tag-out

Worksheets - Electromechanical

In this motor control circuit, how would you ensure that there is no…

Balanced Attenuator Calculator

Tools

This balanced attenuator calculator helps you determine the resistor (R1) values for a balanced attenuator.

Selsyn (Synchro) Motors

Textbook

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

Memory Devices

Worksheets - Electromechanical

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

Some Examples with AC Circuits

Textbook

Let’s connect three AC voltage sources in series and use complex…

Phase Rotation

Textbook

Three-Phase Alternator Let’s take the three-phase alternator…

7-segment Display

Textbook

PARTS AND MATERIALS 4511 BCD-to-7seg latch/decoder/driver (Radio…

Basic Voltmeter Use

Worksheets - Electromechanical

What will this voltmeter register when connected to a battery as shown…

Factorials

Textbook

Definition of a Factorial Denoted by the symbol “!” after…

Bit Grouping

Textbook

The singular reason for learning and using the binary numeration…

Basic Electromagnetic Relays

Worksheets - Electromechanical

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

Temperature Coefficient of Resistance

Textbook

You might have noticed on the table for specific resistances that all…

JFET Quirks

Textbook

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.

Positive Feedback OpAmp Circuits

Worksheets - Electromechanical

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

Series-Parallel DC Circuits

Worksheets - Electromechanical

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

Sequences

Textbook

Arithmetic Sequences An arithmetic sequence is a series of numbers…

Negative Feedback OpAmp Circuits

Worksheets - Electromechanical

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…

3-bit Binary Counter

Textbook

PARTS AND MATERIALS 555 timer IC (Radio Shack catalog # 276-1723) One…

Audio Oscillator

Textbook

PARTS AND MATERIALS Two 6-volt batteries Three NPN…