Categories

Synchronous Motors

Textbook

Single Phase Synchronous Motors Single-phase synchronous motors are…

Introduction to AC Motors

Textbook

After the introduction of the DC electrical distribution system by…

AC Commutator Motors

Textbook

Charles Proteus Steinmetz’s first job after arriving in America…

Single-phase Induction Motors

Textbook

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

AC Instrumentation Transducers

Textbook

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

Tesla Polyphase Induction Motors

Textbook

Most AC motors are induction motors. Induction motors are favored due…

DC Generator Theory

Worksheets - Encoders

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

AC Motor Theory

Worksheets - Encoders

Electromechanical watt-hour meters use an aluminum disk that is spun…

DC Motor Theory

Worksheets - Encoders

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

Reluctance Motor

Textbook

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

What is Alternating Current (AC)?

Textbook

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

Brushless DC Motor

Textbook

Brushless DC motors were developed from conventional brushed DC motors…

Servo Motor Systems

Worksheets - Encoders

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

AC Generator Theory

Worksheets - Encoders

If an electric current is passed through this wire, which direction…

Selsyn (Synchro) Motors

Textbook

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

Stepper Motors

Textbook

Stepper Motor vs Servo Motor A stepper motor is a…

Tesla Polyphase Induction Motors

Textbook

Most AC motors are induction motors. Induction motors are favored due…

Boolean Algebra

Worksheets - Encoders

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

Stepper Motors

Textbook

Stepper Motor vs Servo Motor A stepper motor is a…

Automotive Alternator

Textbook

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

Induction Motor

Textbook

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

Polyphase Motor Design

Textbook

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

Vacuum Tube Audio Amplifier

Textbook

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

What is Alternating Current (AC)?

Textbook

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

Step-up, Step-down, and Isolation Transformers

Worksheets - Encoders

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

AC Instrumentation Transducers

Textbook

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

Design Project: Stepper Motor Driver

Worksheets - Encoders

At first it may seem pointless to have the four buffer gates following…

DC Motor Theory

Worksheets - Encoders

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

Induction Motor, Large

Textbook

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

Basic Troubleshooting Strategies

Worksheets - Encoders

A chandelier has five light bulbs in it, and one of them is not…

Design Project: DC Motor

Worksheets - Encoders

The armature windings of your DC motor will have very low resistance.…

Pulse Width Modulation

Textbook

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

Single-phase Induction Motors

Textbook

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

Motor Control Circuits

Textbook

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

Other Specialized Motors

Textbook

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

Electric Shock

Worksheets - Encoders

It is sometimes said regarding electrical safety that, Ït’s not the…

Logic Simplification With Karnaugh Maps

Textbook

The logic simplification examples that we have done so far could have…

Design Project: Telegraph System

Worksheets - Encoders

What voltage will you choose to use for each of the station batteries?

Multiplexers

Textbook

A multiplexer, abbreviated mux, is a device that has multiple inputs…

Practical Considerations - Transformers

Textbook

Power Capacity As has already been observed, transformers must be well…

AC Resistor Circuits (Inductive)

Textbook

Instantaneous Values in AC Circuits Pure resistive AC circuit:…

Combination Tubes

Textbook

Similar in thought to the idea of the integrated circuit, tube…

Calculating Power Factor

Textbook

As was mentioned before, the angle of this “power…

What is a Filter?

Textbook

It is sometimes desirable to have circuits capable of selectively…

Power Supply Circuits

Textbook

There are three major kinds of power supplies: unregulated (also…

Scientific Notation and Metric Prefixes

Worksheets - Encoders

Write the following exponential expressions in expanded form: 101 =…

BJT Amplifier Troubleshooting

Worksheets - Encoders

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

Electrical Signal Types

Textbook

With BogusBus, our signals were very simple and straightforward: each…

Bit Grouping

Textbook

The singular reason for learning and using the binary numeration…

Permanent Magnets

Textbook

Centuries ago, it was discovered that certain types of mineral rock…

Capacitance Calculator

Tools

This calculates the capacitance of a capacitor based on its charge, Q, and its voltage, V, according to the formula, C=Q/V.

Successive Approximation ADC

Textbook

One method of addressing the digital ramp ADC’s shortcomings is…

Biasing Techniques (IGFET)

Textbook

Memory Devices

Worksheets - Encoders

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

Ohmmeter Usage

Textbook

Parts and Materials Multimeter, digital or analog Assorted resistors…

Boolean Algebraic Properties

Textbook

Another type of mathematical identity, called a “property”…