Categories

Special Transformers and Applications

Textbook

Impedance Matching Because transformers can step voltage and current…

The Silicon-Controlled Rectifier (SCR)

Textbook

Shockley Diodes and Silicon Controlled Rectifiers (SCRs) Shockley…

Oscilloscope Trigger Controls

Worksheets - Power Supplies

A very useful tool for observing rotating objects is a strobe light.…

Design Project: Intercom System

Worksheets - Power Supplies

Design a passive circuit that will create a "split” ( V/-V) power…

Switched Capacitor Circuitry

Worksheets - Power Supplies

Write an equation describing the precise mathematical relationship…

Standing Waves and Resonance

Textbook

Whenever there is a mismatch of impedance between transmission line…

Transformer—Power Supply

Textbook

PARTS AND MATERIALS Power transformer, 120VAC step-down to 12VAC,…

Autotransformers

Worksheets - Power Supplies

How much voltage is there between the following pairs of points in…

Special-purpose Diodes

Textbook

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

Transistor Biasing Calculations

Textbook

Although transistor switching circuits operate without bias, it is…

Practical Power Factor Correction

Textbook

When the need arises to correct for poor power factor in an AC power…

Batteries

Worksheets - Power Supplies

If I wanted to build a battery-powered electric drill, would it be…

Peak, Average, and RMS Measurements

Worksheets - Power Supplies

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

555 Schmitt Trigger

Textbook

PARTS AND MATERIALS One 9V Battery Battery Clip (Radio Shack catalog #…

JFET Current Regulator

Textbook

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

Design Project: AC-DC Power Supply

Worksheets - Power Supplies

Safety is very important when designing and/or building a device…

Pulse Width Modulation

Textbook

Pulse Width Modulation (PWM) uses digital signals to control power…

Thevenin’s, Norton’s, and Maximum Power Transfer Theorems

Worksheets - Power Supplies

Suppose a 12 volt lead-acid battery has an internal resistance of 20…

Logic Signal Voltage Levels

Textbook

Input Voltages for Logic Gates Logic gate circuits are designed to…

Class B Audio Amplifier

Textbook

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

Series-Parallel DC Circuits

Worksheets - Power Supplies

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

Synchronous Condenser

Textbook

Synchronous motors load the power line with a leading power factor.…

Servo Motor Systems

Worksheets - Power Supplies

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

Static Electricity

Textbook

It was discovered centuries ago that certain types of materials would…

Rectifier Circuits

Worksheets - Power Supplies

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

Calculus for Electric Circuits

Worksheets - Power Supplies

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

Pulse Width Modulation

Textbook

Pulse Width Modulation (PWM) uses digital signals to control power…

Voltage and Current Calculations

Textbook

There’s a sure way to calculate any of the values in a reactive…

Microstrip Max Current Calculator

Tools

A calculator for solving the maximum current a microstrip can handle.

555 Audio Oscillator

Textbook

PARTS AND MATERIALS Two 6 volt batteries One capacitor, 0.1 µF,…

Rectifier Circuits

Textbook

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

The R/2nR DAC: Binary-Weighted-Input Digital-to-Analog Converter

Textbook

What Is a R/2nR DAC Circuit? The R/2nR DAC circuit, otherwise known as…

IGBTs

Textbook

Because of their insulated gates, IGFETs of all types have extremely…

Time Constant Calculations

Worksheets - Power Supplies

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

Mutual Inductance

Worksheets - Power Supplies

When an electric current is passed through a coil of wire, what…

Junction Field-effect Transistors

Textbook

The field effect transistor was proposed by Julius Lilienfeld in US…

Capacitive Reactance

Worksheets - Power Supplies

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

AC Motor Theory

Worksheets - Power Supplies

Electromechanical watt-hour meters use an aluminum disk that is spun…

Wiring Color Codes

Textbook

Wiring for AC and DC power distribution branch circuits are color…

True, Reactive, and Apparent Power

Textbook

Reactive Power We know that reactive loads such as inductors and…

Asynchronous Flip-Flop Inputs

Textbook

The normal data inputs to a flip flop (D, S and R, or J and K) are…

Transistor Biasing Calculations

Textbook

Although transistor switching circuits operate without bias, it is…

Potentiometer as a Rheostat

Textbook

Learning Objectives Rheostat use Wiring a potentiometer as a rheostat…

Multiplexers and Demultiplexers

Worksheets - Power Supplies

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

AC Negative Feedback OpAmp Circuits

Worksheets - Power Supplies

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

Vol VI. Credits

Textbook

All entries arranged in alphabetical order of surname. Major…

Larger 5 & 6-variable Karnaugh Maps

Textbook

Larger Karnaugh maps reduce larger logic designs. How large is large…

AC Network Analysis

Worksheets - Power Supplies

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

Sequences

Textbook

Arithmetic Sequences An arithmetic sequence is a series of numbers…

Design Project: Arbitrary Waveform Generator

Worksheets - Power Supplies

What, exactly, is an arbitrary waveform generator, and for what…

Synchronous Motors

Textbook

Single Phase Synchronous Motors Single-phase synchronous motors are…

Introduction to Solid-state Device Theory

Textbook

This chapter will cover the physics behind the operation of…

Design Project: Logic Probe

Worksheets - Power Supplies

What factors determine where potentiometers Rpot1 and Rpot2 must be…

Design Project: DC Voltage Regulator

Worksheets - Power Supplies

It may seem difficult to even start on a project such as this, with no…

Scientific Notation

Textbook

In many disciplines of science and engineering, very large and very…

Practical Power Factor Correction

Textbook

When the need arises to correct for poor power factor in an AC power…

Nonlinear Resistance

Textbook

PARTS AND MATERIALS Calculator (or pencil and paper for doing…

Finite-length Transmission Lines

Textbook

A transmission line of infinite length is an interesting abstraction,…

Oscillator Circuits

Worksheets - Power Supplies

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

Properties of Exponents

Textbook

Product of Powers Property am an = am+n   Power of a Product…