Categories

What is a Filter?

Textbook

It is sometimes desirable to have circuits capable of selectively…

Introduction to Mixed-Frequency AC Signals

Textbook

In our study of AC circuits thus far, we’ve explored circuits…

Passive Filter Circuits

Worksheets - Digital Signal Processing

In very simple, qualitative terms, rate the impedance of capacitors…

Square Wave Signals

Textbook

It has been found that any repeating, non-sinusoidal waveform can be…

Mixed-Frequency Signals

Worksheets - Digital Signal Processing

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

Wire-by-Number project kit introduction

Worksheets - Digital Signal Processing

Wire-by-Number project: simple voltage divider Description: Build a…

Four-Channel Audio Mixer

Worksheets - Digital Signal Processing

A very common misconception students have about potentiometers is the…

“Long’’ and “Short’’ Transmission Lines

Textbook

In DC and low-frequency AC circuits, the characteristic impedance of…

The Common-emitter Amplifier

Textbook

At the beginning of this chapter, it illustrates how transistors could…

Feedback

Textbook

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

Absolute dB scales

Textbook

Decibel as Absolute Unit of Power It is also possible to use the…

Decibel Measurements

Worksheets - Digital Signal Processing

During the early development of telephone technology, a unit was…

PC Oscilloscope

Textbook

PARTS AND MATERIALS IBM-compatible personal computer with sound card,…

Performance-Based Assessments for AC Circuit Competencies

Worksheets - Digital Signal Processing

(Template)

The “Operational” Amplifier

Textbook

Long before the advent of digital electronic technology, computers…

AC Network Analysis

Worksheets - Digital Signal Processing

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

BJT Quirks

Textbook

An ideal transistor would show 0% distortion in amplifying a signal.…

Resonance

Worksheets - Digital Signal Processing

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

Class B Audio Amplifier

Textbook

PARTS AND MATERIALS Four 6 volt batteries Dual operational amplifier,…

Basic Troubleshooting Strategies

Worksheets - Digital Signal Processing

A chandelier has five light bulbs in it, and one of them is not…

Radio Circuits

Textbook

(a) Crystal radio. (b) Modulated RF at antenna. (c) Rectified RF at…

Series-Parallel Combination AC Circuits

Worksheets - Digital Signal Processing

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

Op-Amp Practical Considerations

Textbook

Real operational amplifiers have some imperfections compared to an…

Vacuum Tube Audio Amplifier

Textbook

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

Attenuators

Textbook

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

Other Specialized Motors

Textbook

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

“Ladder” Diagrams

Textbook

Ladder diagrams are specialized schematics commonly used to document…

AC Power

Worksheets - Digital Signal Processing

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

Basic AC-DC Power Supplies

Worksheets - Digital Signal Processing

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

Clipper Circuits

Textbook

A circuit which removes the peak of a waveform is known as a clipper.…

Peak, Average, and RMS Measurements

Worksheets - Digital Signal Processing

How is it possible to assign a fixed value of voltage or current (such…

Kirchhoff’s Current Law (KCL)

Textbook

What Is Kirchhoff’s Current Law? Kirchhoff’s Current Law,…

Electron Activity in Chemical Reactions

Textbook

So far in our discussions on electricity and electric circuits, we…

Tesla Polyphase Induction Motors

Textbook

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

Biasing Techniques (BJT)

Textbook

In the common-emitter section of this chapter, we saw a SPICE analysis…

Flash ADC

Textbook

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

Specific Troubleshooting Techniques

Textbook

After applying some of the general troubleshooting tips to narrow the…

Basic Operational Amplifiers

Worksheets - Digital Signal Processing

Determine the output voltage polarity of this op-amp (with reference…

Servo Motor Systems

Worksheets - Digital Signal Processing

Explain the operation of this “H-bridge” motor control circuit: At…

Circuit Wiring

Textbook

So far, we’ve been analyzing single-battery, single-resistor…

Basic Gate Function

Textbook

Parts and Materials 4011 quad NAND gate (Radio Shack catalog #…

Simple Parallel Circuits

Textbook

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

Branch Current Method

Textbook

The first and most straightforward network analysis technique is…

Power Quality Measurement

Textbook

It used to be with large AC power systems that “power…

Design Project: Pulse-Width Modulation (PWM) Signal Generator

Worksheets - Digital Signal Processing

What shape of voltage waveform would you expect to measure (using an…