Categories

Protective Relay Circuits

Worksheets - Relays

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

CMOS Logic Gates

Worksheets - Relays

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

High Voltage Ohmmeters

Textbook

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

Monostable Multivibrators

Textbook

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

Electromechanical Relay Logic

Worksheets - Relays

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

Electromechanical Relay Logic

Worksheets - Relays

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

Introduction to Diodes And Rectifiers

Textbook

All About Diodes A diode is an electrical device allowing current to…

Switches

Worksheets - Relays

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

DC Generator Theory

Worksheets - Relays

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

Torque Conversion Calculator

Tools

A tool designed to convert between units of torque

Linear Computational Circuitry

Worksheets - Relays

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…

The Bipolar Junction Transistor (BJT) as a Switch

Textbook

Bipolar junction transistors (Also known as BJTs) can be used as an…

Thyristor Application Circuits

Worksheets - Relays

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

Build a Transformer

Textbook

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

Pulse Width Modulation

Textbook

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

Switch Contact Design

Textbook

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

Arc Flash and Arc Blast

Worksheets - Relays

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

Fail-safe Design

Textbook

Logic circuits, whether comprised of electromechanical relays or…

Voltage Regulation

Textbook

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

Light-Pulse Switch

Worksheets - Relays

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

Brushless DC Motor

Textbook

Brushless DC motors were developed from conventional brushed DC motors…

Synchronous Motors

Textbook

Single Phase Synchronous Motors Single-phase synchronous motors are…

CMOS Logic Gates

Worksheets - Relays

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

Wound Rotor Induction Motors

Textbook

A wound rotor induction motor has a stator like a squirrel cage…

Amplifiers

Textbook

Practical Benefit of Active Devices The practical benefit of active…

Broadside Coupled Trace Inductance Calculator

Tools

This calculator helps you compute the inductance of a broadside coupled trace.

Inductor Transient Response

Textbook

Inductors have the exact opposite characteristics of capacitors.…

Wires and Connections

Textbook

Older electrical schematics showed connecting wires crossing, while…

What is a Meter?

Textbook

A meter is any device built to accurately detect and display an…

Introduction to Conductance and Conductors

Textbook

By now you should be well aware of the correlation between electrical…

Universal Shift Registers: Parallel-in, Parallel-out

Textbook

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

Characteristic Impedance

Textbook

The Parallel Wires of Infinite Length Suppose, though, that we had a…

Switches, Hand Actuated

Textbook

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

Integrator

Textbook

PARTS AND MATERIALS Four 6 volt batteries Operational amplifier, model…

Introduction to DC Circuits

Textbook

“DC” stands for Direct Current, which can refer to either…

What Are Electric Circuits?

Textbook

You might have been wondering how charges can continuously flow in a…

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.

Potentiometric Voltmeter

Textbook

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

Transistors, junction field-effect (JFET)

Textbook

Note that the direction of the arrow at the gate indicates the…

Characteristic Impedance

Worksheets - Relays

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

Parallel Wire Inductance Calculator

Tools

This tool is designed to calculate the inductance of two parallel wires

Power Dissipation

Textbook

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

Harmonic Phase Sequences

Textbook

In the last section, we saw how the 3rd harmonic and all of its…

Electrical Noise and Interference

Worksheets - Relays

Define what noise means, in the electrical sense of the word. How does…