Categories

Selsyn (Synchro) Motors

Textbook

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

Wound Rotor Induction Motors

Textbook

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

Stepper Motors

Textbook

Stepper Motor vs Servo Motor A stepper motor is a…

AC Instrumentation Transducers

Textbook

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

What is Alternating Current (AC)?

Textbook

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

Synchronous Motors

Textbook

Single Phase Synchronous Motors Single-phase synchronous motors are…

Brushless DC Motor

Textbook

Brushless DC motors were developed from conventional brushed DC motors…

Reluctance Motor

Textbook

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

Other Specialized Motors

Textbook

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

AC Commutator Motors

Textbook

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

Tesla Polyphase Induction Motors

Textbook

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

Regulated Power Sources

Worksheets - IoT

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

Transistor Biasing Calculations

Textbook

Although transistor switching circuits operate without bias, it is…

Polyphase Power Systems

Worksheets - IoT

Explain the difference between a balanced polyphase system and an…

Design Project: Simple Component Curve-Tracer Circuit

Worksheets - IoT

What do each of the oscilloscope axes represent, in real-life terms…

Wound Rotor Induction Motors

Textbook

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

Some Examples with AC Circuits

Textbook

Let’s connect three AC voltage sources in series and use complex…

Calculating Power Factor

Textbook

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

Bipolar Junction Transistors

Textbook

The bipolar junction transistor (BJT) was named because its operation…

Mesh Current Method and Analysis

Textbook

The Mesh-Current Method, also known as the Loop Current Method, is…

High-impedance Voltmeter

Textbook

PARTS AND MATERIALS Operational amplifier, model TL082 recommended…

Capacitive Reactance

Worksheets - IoT

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

Likely Failures in Proven Systems

Textbook

The following problems are arranged in order from most likely to least…

Permanent Magnets

Textbook

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

Analog-to-Digital Conversion

Worksheets - IoT

The circuit shown here is a four-bit analog-to-digital converter…

Transistors, Bipolar

Textbook

There are not too many circuit symbols for bipolar transistors. There…

Edge Coupled Trace Inductance Calculator

Tools

This calculator helps you compute for the inductance of an edge coupled trace.

555 Hysteretic Oscillator

Textbook

PARTS AND MATERIALS One 9V Battery Battery Clip (Radio Shack catalog #…

Single-phase Induction Motors

Textbook

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

Phase-Locked Loops

Worksheets - IoT

This is a schematic for a simple VCO: The oscillator is of the RC…

Single-ended and Differential Amplifiers

Textbook

For ease of drawing complex circuit diagrams, electronic amplifiers…

Power Added Efficiency Calculator

Tools

A calculator designed to compute the power-added efficiency (PAE) of an amplifier

Switches, Process Actuated

Textbook

It is very important to keep in mind that the “normal”…

R, L and C Summary

Textbook

With the notable exception of calculations for power (P), all AC…

Design Project: Radio Transmitter

Worksheets - IoT

Research the FCC (Federal Communication Commission) guidelines on…

Band Theory of Solids

Textbook

Quantum physics describes the states of electrons in an atom according…

Microstrip Trace Width Calculator

Tools

This tool is designed to compute for the trace width of a microstrip

Successive Approximation ADC

Textbook

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

Calculus for Electric Circuits

Worksheets - IoT

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

Voltage Divider Circuits

Textbook

Let’s analyze a simple series circuit and determine the voltage…

Light-Pulse Switch

Worksheets - IoT

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

Logic Signal Voltage Levels

Textbook

Input Voltages for Logic Gates Logic gate circuits are designed to…

Minterm vs Maxterm Solution

Textbook

So far we have been finding Sum-Of-Product (SOP) solutions to logic…

Stepper Motor Calculator

Tools

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

Inductors

Worksheets - IoT

∫f(x) dx Calculus alert! A 5 H inductor is subjected to an electric…

Sensing AC Magnetic Fields

Textbook

PARTS AND MATERIALS Audio detector with headphones Electromagnet coil…

Performance-Based Assessments for DC Circuit Competencies

Worksheets - IoT

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Optoelectronic Devices

Worksheets - IoT

In this circuit, the electric motor is supposed to turn on whenever…

Negative Feedback

Textbook

If we connect the output of an op-amp to its inverting input and apply…

Single-ended and Differential Amplifiers

Textbook

For ease of drawing complex circuit diagrams, electronic amplifiers…

Microprocessor Programming

Textbook

The “vocabulary” of instructions which any particular…