All About Circuits

Latest MEMS Education

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Monostable Multivibrators

Monostable Multivibrators

We’ve already seen one example of a monostable multivibrator in…


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DC Motor Control Circuits

DC Motor Control Circuits

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


Worksheets - MEMS

Resonance

Resonance

The Q factor of a series inductive circuit is given by the following…


Worksheets - MEMS

Latch Circuits

Latch Circuits

What do you think this logic buffer gate will do, with the output…


Worksheets - MEMS

The Bipolar Junction Transistor (BJT) as a Switch

The Bipolar Junction Transistor (BJT) as a Switch

Bipolar junction transistors (Also known as BJTs) can be used as an…


Textbook

Switch Contact Design

Switch Contact Design

A switch can be constructed with any mechanism bringing two conductors…


Textbook

The Bipolar Junction Transistor (BJT) as a Switch

The Bipolar Junction Transistor (BJT) as a Switch

Bipolar junction transistors (Also known as BJTs) can be used as an…


Textbook

Synchronous Motors

Synchronous Motors

Single Phase Synchronous Motors Single-phase synchronous motors are…


Textbook

Performance-Based Assessments for DC Circuit Competencies

Performance-Based Assessments for DC Circuit Competencies

(Template)


Worksheets - MEMS

Torque Conversion Calculator

Torque Conversion Calculator

A tool designed to convert between units of torque


Tools

Motor Control Circuits

Motor Control Circuits

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


Textbook

Stepper Motor Calculator

Stepper Motor Calculator

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


Tools

The Silicon-Controlled Switch (SCS)

The Silicon-Controlled Switch (SCS)

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


Textbook

High Voltage Ohmmeters

High Voltage Ohmmeters

Most ohmmeters of the design shown in the previous section utilize a…


Textbook

AC Lab - Induction Motor

AC Lab - Induction Motor

In this hands-on AC electronics experiment, build a simple AC permanent capacitor split-phase induction motor and learn the principles of AC induction motor function.


Textbook

Arc Flash and Arc Blast

Arc Flash and Arc Blast

Electromechanical relays used to start and stop high-power electric…


Worksheets - MEMS

Flip-Flop Circuits

Flip-Flop Circuits

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


Worksheets - MEMS

Time Constant Calculations

Time Constant Calculations

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


Worksheets - MEMS

Switch Types

Switch Types

Though it may seem strange to cover the elementary topic of electrical…


Textbook

“Ladder” Diagrams

“Ladder” Diagrams

Ladder diagrams are specialized schematics commonly used to document…


Textbook

AC Lab - Large Induction Motor

AC Lab - Large Induction Motor

In this hands-on AC electronics experiment, build a large AC permanent capacitor split-phase induction motor and learn the principles of AC induction motor function.


Textbook

Fail-safe Design

Fail-safe Design

Logic circuits, whether comprised of electromechanical relays or…


Textbook

Permissive and Interlock Circuits

Permissive and Interlock Circuits

A practical application of switch and relay logic is in control…


Textbook

Electromechanical Relay Logic

Electromechanical Relay Logic

In ladder logic symbolism, an electromechanical relay coil is shown as…


Worksheets - MEMS

Switches, Electrically Actuated (Relays)

Switches, Electrically Actuated (Relays)

The structure behind ladder logic is based on the electrical ladder…


Textbook

Intro Lab - Circuit With a Switch

Intro Lab - Circuit With a Switch

In this hands-on electronics experiment, you will control a light with a switch and learn the basics of connecting toggle (on/off) switches into circuits.


Textbook

Applications of Resonance

Applications of Resonance

So far, the phenomenon of resonance appears to be a useless curiosity,…


Textbook

Pi-Match Impedance Matching Calculator

Pi-Match Impedance Matching Calculator

This calculator is designed to compute the parameters required to design a Pi-Match Impedance Circuit


Tools

Synchronous Counters

Synchronous Counters

What is a Synchronous Counter? A synchronous counter, in contrast to…


Textbook

AC phase

AC phase

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


Worksheets - MEMS

Calculating Power Factor

Calculating Power Factor

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


Textbook

Contact “Bounce”

Contact “Bounce”

When a switch is actuated and contacts touch one another under the…


Textbook

Electrical Conduction in Semiconductors

Electrical Conduction in Semiconductors

In any electrically conductive substance, what are charge carriers?…


Worksheets - MEMS

Diode Switching Circuits

Diode Switching Circuits

Diodes can perform switching and digital logic operations. Forward and…


Textbook

Parallel Circuit Rules

Parallel Circuit Rules

Voltage Components in a parallel circuit share the same voltage:…


Textbook

Transistors, Hybrid

Transistors, Hybrid

In essence, the IGFET controls the base current of a BJT, which…


Textbook

Lock-out / Tag-out

Lock-out / Tag-out

In this motor control circuit, how would you ensure that there is no…


Worksheets - MEMS

Binary Subtraction

Binary Subtraction

We can subtract one binary number from another by using the standard…


Textbook

Gate Universality

Gate Universality

NAND and NOR gates possess a special property: they are universal.…


Textbook

The Antiderivative (Indefinite Integral)

The Antiderivative (Indefinite Integral)

  Notice something important here: taking the derivative of f(x)…


Textbook

Introduction to Digital Communication

Introduction to Digital Communication

In the design of large and complex digital systems, it is often…


Textbook

AC Negative Feedback OpAmp Circuits

AC Negative Feedback OpAmp Circuits

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


Worksheets - MEMS

Single-phase Induction Motors

Single-phase Induction Motors

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


Textbook

Capacitor Charge and Time Constant Calculator

Capacitor Charge and Time Constant Calculator

This calculator computes for the capacitor charge time and energy, given the supply voltage and the added series resistance.


Tools

Thermocouples

Thermocouples

Seebeck Effect An interesting phenomenon applied in the field of…


Textbook

Boolean Algebraic Properties

Boolean Algebraic Properties

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


Textbook