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Bipolar Junction Transistors as Switches

Worksheets - Motor Control

Solid-state switching circuits usually keep their constituent…

Design Project: DC Motor

Worksheets - Motor Control

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

Reluctance Motor

Textbook

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

Selsyn (Synchro) Motors

Textbook

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

Brushless DC Motor

Textbook

Brushless DC motors were developed from conventional brushed DC motors…

Step-up, Step-down, and Isolation Transformers

Worksheets - Motor Control

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

AC Commutator Motors

Textbook

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

The Importance of Electrical Safety

Textbook

With this lesson, I hope to avoid a common mistake found in…

Tesla Polyphase Induction Motors

Textbook

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

Single-phase Induction Motors

Textbook

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

Vacuum Tube Audio Amplifier

Textbook

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

Boolean Algebra

Worksheets - Motor Control

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

Stepper Motors

Textbook

A stepper motor is a “digital” version of the electric…

Introduction to AC Motors

Textbook

After the introduction of the DC electrical distribution system by…

Calculus for Electric Circuits

Worksheets - Motor Control

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

SPICE Models

Textbook

The SPICE circuit simulation program provides for modeling diodes in…

Motor Control Circuits

Textbook

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

Polyphase Motor Design

Textbook

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

Synchronous Motors

Textbook

Single Phase Synchronous Motors Single-phase synchronous motors are…

Intermediate Electromagnetism and Electromagnetic Induction

Worksheets - Motor Control

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

Basic Logic Gate Troubleshooting

Worksheets - Motor Control

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

Atomic Structure

Worksheets - Motor Control

Shown here is a simplified representation of an atom: the smallest…

Static Electricity Sensor

Textbook

PARTS AND MATERIALS One N-channel junction field-effect transistor,…

Solving for Unknown Time

Textbook

Sometimes it is necessary to determine the length of time that a…

Thyristor Application Circuits

Worksheets - Motor Control

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

Precise Diode Circuits

Worksheets - Motor Control

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

Common Derivatives

Textbook

AC Waveforms

Textbook

When an alternator produces AC voltage, the voltage switches polarity…

Data - Resistance & Superconductor

Textbook

Tables of specific resistance and temperature coefficient of…

Minterm vs Maxterm Solution

Textbook

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

Semiconductor Devices in SPICE

Textbook

The SPICE (Simulation Program, Integrated Circuit Emphesis)…

Right Triangle Trigonometry

Textbook

A right triangle is defined as having one angle precisely equal to…

Coefficients of Specific Resistance

Textbook

Specific resistance at 20o C: Material Element/Alloy (ohm-cmil/ft)…

Full-Adder

Textbook

The half-adder is extremely useful until you want to add more that…

Resistance

Textbook

The circuit in the previous section is not a very practical one. In…

Multiple-input Gates

Textbook

The Use of Logic Gate Inverters and buffers exhaust the possibilities…

Tachogenerators

Textbook

An electromechanical generator is a device capable of producing…

Biasing Techniques (IGFET)

Textbook

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.

Potentiometer as a Voltage Divider

Textbook

PARTS AND MATERIALS Two 6-volt batteries Carbon pencil “lead” for…