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1-PWM Mode

In partnership with Texas Instruments

This video is an overview of the new 1-PWM Mode for the DRV8305 Brushless DC Motor Driver

2-kW isolated bidirectional DC-DC converter reference design for UPS

In partnership with Texas Instruments

The 2-kW isolated bidirectional DC-DC converter reference design (TIDA-00951) is capable of power…

AC Commutator Motors

Textbook

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

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…

AC Instrumentation Transducers

Textbook

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

AC Motor Control Circuits

Worksheets - Appliances

Perhaps the most challenging aspect of interpreting ladder diagrams,…

DC Motor Control Circuits

Worksheets - Appliances

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

Intermediate Electromagnetism and Electromagnetic Induction

Worksheets - Appliances

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

CMOS 555 Long Duration Flyback LED Flasher

Textbook

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

Reluctance Motor

Textbook

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

Design Project: Stepper Motor Driver

Worksheets - Appliances

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

Polyphase Motor Design

Textbook

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

What is Alternating Current (AC)?

Textbook

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

Inductive Reactance

Worksheets - Appliances

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

Automotive Alternator

Textbook

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

Selsyn (Synchro) Motors

Textbook

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

AC Motor Theory

Worksheets - Appliances

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

Induction Motor

Textbook

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

Other Specialized Motors

Textbook

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

Stepper Motors

Textbook

Stepper Motor vs Servo Motor A stepper motor is a…

Rectifier Circuits

Worksheets - Appliances

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

Wound Rotor Induction Motors

Textbook

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

Design Project: Sensitive Audio Detector

Worksheets - Appliances

The choice of step-down transformers to use in a project such as this…

The Silicon-Controlled Switch (SCS)

Textbook

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

The Common-base Amplifier

Textbook

The final transistor amplifier configuration (Figure below) we need to…

Digital Codes

Worksheets - Appliances

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

Passive Integrator and Differentiator Circuits

Worksheets - Appliances

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

Simple Parallel Circuits

Textbook

On this page, we’ll outline the three principles you should…

Synchronous Condenser

Textbook

Synchronous motors load the power line with a leading power factor.…

Decoder

Textbook

A decoder is a circuit that changes a code into a set of signals. It…

Electron Activity in Chemical Reactions

Textbook

So far in our discussions on electricity and electric circuits, we…

Building a Differential Amplifier

Textbook

Differential Op-Amp Circuits An op-amp with no feedback is already a…

Scientific Notation

Textbook

In many disciplines of science and engineering, very large and very…

Step-up, Step-down, and Isolation Transformers

Worksheets - Appliances

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

Contactors

Textbook

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

Harmonics in Polyphase Power Systems

Textbook

In the chapter on mixed-frequency signals, we explored the concept of…

Special-purpose Batteries

Textbook

Mercury Standard Cell Back in the early days of electrical measurement…

Protective Relay Circuits

Worksheets - Appliances

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

Electromagnetic Induction

Textbook

While Oersted’s surprising discovery of electromagnetism paved…

Four-Channel Audio Mixer

Worksheets - Appliances

A very common misconception students have about potentiometers is the…

Mutual Inductance

Worksheets - Appliances

When an electric current is passed through a coil of wire, what…

VSWR / Return Loss Calculator

Tools

A calculator designed to compute the VSWR, reflection coefficient, return loss and matching loss in a transmission line