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AC Negative Feedback OpAmp Circuits

Worksheets - Oscillators

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

Feedback

Textbook

If some percentage of an amplifier’s output signal is connected…

Mixed-Frequency Signals

Worksheets - Oscillators

What is a harmonic frequency? If an oscillator circuit outputs a…

Frequency and Phase Measurement

Textbook

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

555 Hysteretic Oscillator

Textbook

Try out our 555 Timer Astable Circuit in our Tools section. PARTS AND…

Negative Feedback OpAmp Circuits

Worksheets - Oscillators

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

Positive Feedback OpAmp Circuits

Worksheets - Oscillators

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

Oscillator Circuits

Textbook

Phase shift oscillator. R1C1, R2C2, and R3C3 each provide 60° of…

High-impedance Voltmeter

Textbook

PARTS AND MATERIALS Operational amplifier, model TL082 recommended…

Flash ADC

Textbook

Also called the parallel A/D converter, this circuit is the simplest…

Parallel Resistor-Capacitor Circuits

Textbook

Using the same value components in our series example circuit, we will…

Differentiator and Integrator Circuits

Textbook

By introducing electrical reactance into the feedback loops of an…

Simple Parallel Circuits

Textbook

On this page, we’ll outline the three principles you should…

Fuses

Textbook

Normally, the ampacity rating of a conductor is a circuit design…

Positive Feedback OpAmp Circuits

Worksheets - Oscillators

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

Potentiometer as a Rheostat

Textbook

Learning Objectives Rheostat use Wiring a potentiometer as a rheostat…

Voltage Comparator

Textbook

Parts and Materials Operational amplifier, model 1458 or 353…

Microcontroller Principles

Worksheets - Oscillators

Read the following quotation, and then research the term…

Stepper Motors

Worksheets - Oscillators

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

An Analogy for Divided Feedback

Textbook

A helpful analogy for understanding divided feedback amplifier…

Complex Vector Addition

Textbook

If vectors with uncommon angles are added, their magnitudes (lengths)…

Insulated-gate Field-effect Transistors (MOSFET)

Textbook

The Insulated-Gate Field-Effect Transistor (IGFET), also known as…

Bipolar Junction Transistors

Textbook

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

Attenuators

Textbook

What is Attenuators? Attenuators are passive devices. It is…

Regulated Power Sources

Worksheets - Oscillators

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

Special-purpose Diodes

Textbook

Schottky diodes Schottky diodes are constructed of a metal-to-N…

Voltage-to-Current Signal Conversion

Textbook

In instrumentation circuitry, DC signals are often used as analog…

What Are Zener Diodes?

Textbook

What Is a Zener Diode? A Zener diode is a special type of rectifying…

Inverting Op-Amp Resistor Calculator

Tools

This calculator determines the bias and feedback of resistors for an inverting op-amp.

T-Match Impedance Matching Circuits

Tools

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

BJT Amplifier Troubleshooting

Worksheets - Oscillators

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

Transistor Biasing Calculations

Textbook

Although transistor switching circuits operate without bias, it is…

Practical Considerations - Capacitors

Textbook

Capacitors, like all electrical components, have limitations that must…

Practical Considerations of ADC Circuits

Textbook

Perhaps the most important consideration of an ADC is its resolution.…

Potentiometers

Worksheets - Oscillators

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

Physical Effects of Electricity

Worksheets - Oscillators

Certain substances are known to physically deform (shorten or…

Re-drawing Complex Schematics

Textbook

Typically, complex circuits are not arranged in nice, neat, clean…

AC Resistor Circuits (Capacitive)

Textbook

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

Q Factor and Bandwidth of a Resonant Circuit

Textbook

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

Likely Failures in Proven Systems

Textbook

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

Rules for Limits

Textbook

Solving Simultaneous Equations: The Substitution Method and the Addition Method

Textbook

What are Simultaneous Equations and Systems of Equations? The terms…

AC Voltmeters and Ammeters

Textbook

AC electromechanical meter movements come in two basic arrangements:…

More on Spectrum Analysis

Textbook

Computerized Fourier analysis, particularly in the form of the FFT…

Phase-Locked Loops

Worksheets - Oscillators

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

Class B BJT Amplifiers

Worksheets - Oscillators

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

Metric Prefixes and Unit Conversions

Textbook

Metric prefixes Yotta = 1024 Symbol: Y Zetta = 1021 Symbol: Z Exa =…

Finite-state Machine

Textbook

Feedback is a fascinating engineering principle. It can turn a rather…