Categories

Induction Motor

Textbook

PARTS AND MATERIALS AC power source: 120VAC Capacitor, 3.3 µF…

Single-phase Induction Motors

Textbook

A three-phase motor may be run from a single-phase power source.…

Polyphase Motor Design

Textbook

AC Motors Perhaps the most important benefit of polyphase AC power…

Flyback Switch Mode Regulator Calculator

Tools

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

Oscilloscope Trigger Controls

Worksheets - Motor Control

A very useful tool for observing rotating objects is a strobe light.…

Wound Rotor Induction Motors

Textbook

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

What is Alternating Current (AC)?

Textbook

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

Automotive Alternator

Textbook

Project Parts and Materials Automotive alternator (one required, but…

Servo Motor Systems

Worksheets - Motor Control

Explain the operation of this “H-bridge” motor control circuit: At…

DC Motor Control Circuits

Worksheets - Motor Control

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

Intermediate Electromagnetism and Electromagnetic Induction

Worksheets - Motor Control

As an electric current is passed through a coil of wire, it creates a…

Torque Conversion Calculator

Tools

A tool designed to convert between units of torque

Motor Control Circuits

Textbook

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

Induction Motor, Large

Textbook

PARTS AND MATERIALS AC power source: 120VAC Capacitor, 3.3 µF…

Selsyn (Synchro) Motors

Textbook

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

AC Motor Control Circuits

Worksheets - Motor Control

Perhaps the most challenging aspect of interpreting ladder diagrams,…

Pulse Width Modulation

Textbook

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

Introduction to AC Motors

Textbook

After the introduction of the DC electrical distribution system by…

Other Specialized Motors

Textbook

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

AC Instrumentation Transducers

Textbook

Just as devices have been made to measure certain physical quantities…

Power Measurement

Textbook

Power measurement in AC circuits can be quite a bit more complex than…

The Common-emitter Amplifier

Textbook

At the beginning of this chapter, it illustrates how transistors could…

Trace Resistance Calculator

Tools

This calculator determines the resistance of a microstrip trace

An Electric Pendulum

Textbook

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

Introduction to AC Circuits

Textbook

“AC” stands for Alternating Current, which can refer to…

Circuit Wiring

Textbook

So far, we’ve been analyzing single-battery, single-resistor…

BJT Amplifier Troubleshooting

Worksheets - Motor Control

As an instructor of electronics, I am called upon frequently to help…

Three-phase Y and Delta Configurations

Textbook

Three-phase Wye(Y) Connection Initially, we explored the idea of…

DC Generator Theory

Worksheets - Motor Control

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

Basic Operational Amplifiers

Worksheets - Motor Control

Determine the output voltage polarity of this op-amp (with reference…

Rectifier/Filter Circuit

Textbook

PARTS AND MATERIALS Low-voltage AC power supply Bridge rectifier pack…

Derivative of a Constant

Textbook

    (“c” being a constant)   RELATED…

Sensing AC Electric Fields

Textbook

PARTS AND MATERIALS Audio detector with headphones  …

ElectroStatic Discharge

Textbook

At the start of this book, we discussed static electricity and how it…

Beam Power Tubes

Textbook

In the beam power tube, the basic four-element structure of the…

Capacitor Transient Response

Textbook

Because capacitors store energy in the form of an electric field, they…

Shift Registers

Worksheets - Motor Control

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

“Long’’ and “Short’’ Transmission Lines

Textbook

In DC and low-frequency AC circuits, the characteristic impedance of…

Overcurrent Protection

Worksheets - Motor Control

What hazards might be posed by a circuit with excessive current going…

Noise Figure and Noise Temperature Calculator

Tools

This calculator computes the noise figure and noise temperature in a system

Half-Adder

Textbook

As a first example of useful combinational logic, let’s build a…

Table (portrait view)

Textbook

  Periodic table of chemical elements.

Unit Conversion Calculator

Tools

Convert to and from different units of length, weight, power, temperature and torque

Microwave Tubes

Textbook

For extremely high-frequency applications (above 1 GHz), the…

Phase Rotation

Textbook

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

Wattmeter Design

Textbook

Power in an electric circuit is the product (multiplication) of…

Boolean Arithmetic

Textbook

Let us begin our exploration of Boolean algebra by adding numbers…

Microphones

Worksheets - Motor Control

Explain how a moving-coil, or dynamic microphone works. Identify how…

Overcurrent Protection

Worksheets - Motor Control

What hazards might be posed by a circuit with excessive current going…

Networks and Busses

Textbook

The wires between the tank and the monitoring location is  called…

Impedance Transformation

Textbook

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

DeMorgan’s Theorems

Textbook

A mathematician named DeMorgan developed a pair of important rules…

Differentiator and Integrator Circuits

Textbook

By introducing electrical reactance into the feedback loops of an…

Millman’s Theorem Revisited

Textbook

You may have wondered where we got that strange equation for the…

The Common-emitter Amplifier

Textbook

At the beginning of this chapter, it illustrates how transistors could…

Wiring Color Codes Infographic

Textbook

Wiring Color Codes Infographic. Released under the Creative Commons…

Active-mode Operation (JFET)

Textbook

JFETs, like bipolar transistors, are able to “throttle”…

AC Motor Control Circuits

Worksheets - Motor Control

Perhaps the most challenging aspect of interpreting ladder diagrams,…

Winding Configurations

Textbook

Transformers with Multiple Secondaries Transformers are very versatile…

Sources of Electricity

Worksheets - Motor Control

What is the difference between DC and AC electricity? Identify some…