Categories

Brushless DC Motor

Textbook

Brushless DC motors were developed from conventional brushed DC motors…

Selsyn (Synchro) Motors

Textbook

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

Single-phase Induction Motors

Textbook

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

DC Motor Theory

Worksheets - DC Motors

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

Rectifier Circuits

Worksheets - DC Motors

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

Tesla Polyphase Induction Motors

Textbook

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

Pulse Width Modulation

Textbook

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

AC Generator Theory

Worksheets - DC Motors

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

DC Motor Control Circuits

Worksheets - DC Motors

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

CMOS 555 Long Duration Flyback LED Flasher

Textbook

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

Induction Motor, Large

Textbook

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

Oscilloscope Trigger Controls

Worksheets - DC Motors

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

Torque Conversion Calculator

Tools

A tool designed to convert between units of torque

Induction Motor

Textbook

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

Stepper Motor Calculator

Tools

A tool designed to calculate the maximum speed, minimum time per step and maximum power of a stepper motor

Design Project: Stepper Motor Driver

Worksheets - DC Motors

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

Servo Motor Systems

Worksheets - DC Motors

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

Stepper Motors

Textbook

Stepper Motor vs Servo Motor A stepper motor is a…

AC Motor Control Circuits

Worksheets - DC Motors

Perhaps the most challenging aspect of interpreting ladder diagrams,…

Flyback Switch Mode Regulator Calculator

Tools

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

Wound Rotor Induction Motors

Textbook

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

Calculating Power Factor

Textbook

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

Wavelength (TEM) Calculator

Tools

This calculator determines the wavelength of a signal given the frequency and dielectric constant.

Step-up, Step-down, and Isolation Transformers

Worksheets - DC Motors

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

Resistor Color Codes

Textbook

Try out our Resistor Color Code Calculator in our Tools section.…

AC phase

Worksheets - DC Motors

If we were to express the series-connected DC voltages as phasors…

7-segment Display

Textbook

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

“Long’’ and “Short’’ Transmission Lines

Textbook

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

Variable Inductor

Textbook

PARTS AND MATERIALS Paper tube, from a toilet-paper roll Bar of iron…

Introduction to Combinational Logic Functions

Textbook

The term “combinational” comes to us from mathematics. In…

Network Protocols

Textbook

Aside from the issues of the physical network (signal types and…

Convert MCD to Lumens

Tools

This calculator is useful for calculating the luminous flux for LEDs where the angle is known.

CMOS Gate Circuitry

Textbook

Up until this point, our analysis of transistor logic circuits has…

The Silicon-Controlled Switch (SCS)

Textbook

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

Multiplexers

Textbook

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

555 Audio Oscillator

Textbook

PARTS AND MATERIALS Two 6 volt batteries One capacitor, 0.1 µF,…

AC Generator Theory

Worksheets - DC Motors

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

Basic Voltmeter Use

Worksheets - DC Motors

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

Reflection Attenuator Calculator

Tools

This tool is designed to calculate the value of resistance R1 in a reflection attenuator.

Superconductivity

Textbook

Conductors lose all of their electrical resistance when cooled to…

Batteries

Worksheets - DC Motors

If I wanted to build a battery-powered electric drill, would it be…