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DC Lab - Build Your Own Multimeter

DC Lab - Build Your Own Multimeter

In this hands-on electronics experiment, you will build a simple voltmeter and ammeter while learning some fundamentals about circuit measurements.


Textbook

PN Junctions

PN Junctions

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


Worksheets - Passives

AC Power

AC Power

If a sinusoidal voltage is applied to an impedance with a phase angle…


Worksheets - Passives

DC Lab - Precision Potentiometer

DC Lab - Precision Potentiometer

In this hands-on electronics experiment, you will build a precision potentiometer from three lower precision potentiometer and learn about voltage range compression and parameter interactions.


Textbook

BJT Amplifier Troubleshooting

BJT Amplifier Troubleshooting

As an instructor of electronics, I am called upon frequently to help…


Worksheets - Passives

Capacitor Sizing Equation

Capacitor Sizing Equation

Capacitance Formula     Permittivity of Dielectric  …


Textbook

Ohm’s Law (again!)

Ohm’s Law (again!)

A common phrase heard in reference to electrical safety goes something…


Textbook

Why L/R and not LR?

Why L/R and not LR?

Learn About L/R Time Constants It is often perplexing to new students…


Textbook

Signal Modulation

Signal Modulation

A modern method of electrical power control involves inserting a…


Worksheets - Passives

Active Loads in Amplifier Circuits

Active Loads in Amplifier Circuits

We know that the current in a series circuit may be calculated with…


Worksheets - Passives

Polarity of voltage drops

Polarity of voltage drops

When using conventional current flow, we can trace the direction of…


Textbook

Troubleshooting Series and Parallel Circuits

Troubleshooting Series and Parallel Circuits

The jobs of electronics engineers and technicians frequently entail…


Textbook

Parallel Resistor Calculator

Parallel Resistor Calculator

Calculate the equivalent resistance of up to six resistors in parallel with ease while learning how to calculate resistance in parallel and the parallel resistance formula.


Tools

Inductor Transient Response

Inductor Transient Response

Inductors have the exact opposite characteristics of capacitors.…


Textbook

AC Resistor Circuits (Capacitive)

AC Resistor Circuits (Capacitive)

Pure resistive AC circuit: voltage and current are in phase.  …


Textbook

Voltage and Current

Voltage and Current

As was previously mentioned, we need more than just a continuous path…


Textbook

Building Series-Parallel Resistor Circuits

Building Series-Parallel Resistor Circuits

Once again, when building battery/resistor circuits, the student or…


Textbook

Parallel DC Circuits Practice Worksheet With Answers

Parallel DC Circuits Practice Worksheet With Answers

In this circuit, three resistors receive the same amount of voltage…


Worksheets - Passives

DC Lab - Sensitive Voltage Detector With Audio Output

DC Lab - Sensitive Voltage Detector With Audio Output

In this hands-on electronics experiment, you will construct a voltage detector with adjustable sensitivity and audio output, and you will learn a method for detecting small electrical signals without an oscilloscope.


Textbook

L-Match Impedance Matching Circuits

L-Match Impedance Matching Circuits

This calculator is designed to compute for the parameters needed to design a L-Match Impedance Circuit


Tools

Phase Rotation

Phase Rotation

Three-Phase Alternator Let’s take the three-phase alternator…


Textbook

Time Constant Circuits

Time Constant Circuits

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


Worksheets - Passives

Delta-Sigma ADC

Delta-Sigma ADC

One of the more advanced ADC technologies is the so-called…


Textbook

Junction Diodes

Junction Diodes

There was some historic crude, but usable semiconductor…


Textbook

PN Junctions

PN Junctions

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


Worksheets - Passives

Design Project: Telegraph System

Design Project: Telegraph System

What voltage will you choose to use for each of the station batteries?


Worksheets - Passives

Algebraic Substitution for Electric Circuits

Algebraic Substitution for Electric Circuits

There are two basic Ohm’s Law equations: one relating voltage,…


Worksheets - Passives

Electrical Connections

Electrical Connections

What, exactly, is necessary to establish electrical continuity between…


Worksheets - Passives

Factorials

Factorials

Definition of a Factorial Denoted by the symbol “!” after…


Textbook

Torque Conversion Calculator

Torque Conversion Calculator

A tool designed to convert between units of torque


Tools

555 Timer Astable Oscillator Circuit

555 Timer Astable Oscillator Circuit

In an astable circuit, the output voltage alternates between VCC and 0 volts on a continuous basis. This calculator will help you design an oscillator using a 555 timer IC.


Tools

Switches, Electrically Actuated (Relays)

Switches, Electrically Actuated (Relays)

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


Textbook

Memory with moving parts: “Drives”

Memory with moving parts: “Drives”

The earliest forms of digital data storage involving moving parts was…


Textbook

The Silicon-Controlled Rectifier (SCR)

The Silicon-Controlled Rectifier (SCR)

Shockley Diodes and Silicon Controlled Rectifiers (SCRs) Shockley…


Textbook

Passive Integrator and Differentiator Circuits

Passive Integrator and Differentiator Circuits

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


Worksheets - Passives

BJT Amplifier Troubleshooting

BJT Amplifier Troubleshooting

As an instructor of electronics, I am called upon frequently to help…


Worksheets - Passives

Resistors

Resistors

Shown here is the schematic symbol for a resistor: What is the purpose…


Worksheets - Passives

Input and Output Coupling

Input and Output Coupling

To overcome the challenge of creating necessary DC bias voltage for an…


Textbook

Physical Effects of Electricity

Physical Effects of Electricity

Certain substances are known to physically deform (shorten or…


Worksheets - Passives

Conductors and Insulators

Conductors and Insulators

Given two lengths of metal wire, which one will have the least…


Worksheets - Passives

Resonant Filters

Resonant Filters

So far, the filter designs we’ve concentrated on have employed…


Textbook

Operational Amplifier Models

Operational Amplifier Models

While mention of operational amplifiers typically provokes visions of…


Textbook

Rectifier Circuits

Rectifier Circuits

What is Rectification? Now we come to the most popular application of…


Textbook

Performance-Based Assessments for Digital Circuit Competencies

Performance-Based Assessments for Digital Circuit Competencies

(Template)


Worksheets - Passives

Winding Configurations

Winding Configurations

Transformers with Multiple Secondaries Transformers are very versatile…


Textbook

Look-up Tables

Look-up Tables

Having learned about digital memory devices in the last chapter, we…


Textbook

The D Latch

The D Latch

Since the enable input on a gated S-R latch provides a way to latch…


Textbook

Potential Pitfalls

Potential Pitfalls

Fallacious reasoning and poor interpersonal relations account for more…


Textbook

Phasing

Phasing

Since transformers are essentially AC devices, we need to be aware of…


Textbook

Inductor Commutating Circuits

Inductor Commutating Circuits

A popular use of diodes is for the mitigation of inductive…


Textbook

Transistors, Insulated-gate Field-effect (IGFET or MOSFET)

Transistors, Insulated-gate Field-effect (IGFET or MOSFET)

We have the symbols for depletion mode and enhancement mode MOSFETs -…


Textbook

Enhancement-type IGFETs

Enhancement-type IGFETs


Textbook

Design Project: Logic Probe

Design Project: Logic Probe

What factors determine where potentiometers Rpot1 and Rpot2 must be…


Worksheets - Passives

PN Junctions

PN Junctions

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


Worksheets - Passives

Power Density Calculator

Power Density Calculator

A tool designed to calculate the power density of an antenna


Tools

AC phase

AC phase

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


Worksheets - Passives

Power Added Efficiency Calculator

Power Added Efficiency Calculator

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


Tools

Q Factor and Bandwidth of a Resonant Circuit

Q Factor and Bandwidth of a Resonant Circuit

The Q, or quality, factor of a resonant circuit is a measure of the…


Textbook

T-Match Impedance Matching Circuits

T-Match Impedance Matching Circuits

A tool designed to compute the values to be used in a T-match Impedance Circuit


Tools

Frequency and Phase Measurement

Frequency and Phase Measurement

An important electrical quantity with no equivalent in DC circuits is…


Textbook