Reactive Power We know that reactive loads such as inductors and…
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When capacitors are connected in series, the total capacitance is…
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In this hands-on electronics experiment, build a red LED flasher with a transistor drive to control the current and learn how to use transistors to provide current gain and how to limit LED current.
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Suppose we wished to measure the resistance of some component located…
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The jobs of electronics engineers and technicians frequently entail…
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In this hands-on electronics experiment, build an oscillator with hysteresis from a Schmitt trigger and learn how to use it to create an RC oscillator and a method to configure a 555 timer as an astable multivibrator.
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In this hands-on electronics experiment, build an audio amplifier using a vacuum tube (triode) and learn about voltage transformers, how to build a high-voltage DC power supply, and how to use a transformer for impedance matching.
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In this hands-on electronics experiment, build a Schmitt trigger using a 555 timer and learn about hysteresis and the inner workings of the extremely versatile 555 timer IC.
Textbook
What factors determine where potentiometers Rpot1 and Rpot2 must be…
Worksheets - Passives
A handy all-in-one tool for reading resistor color code values for a 4 band resistor, 5 band resistor, or 6 band resistor.
Tools
By definition, a low-pass filter is a circuit offering easy passage to…
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Write an equation describing the precise mathematical relationship…
Worksheets - Passives
In this hands-on electronics experiment, you will build a resistive voltage divider and observe how Ohm's law and Kirchhoff's voltage law (KVL) function in real circuits using a voltmeter and an ammeter.
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In this hands-on semiconductor electronics experiment, build a simple circuit that will teach you how to use a commutating diode to reduce inductive kickback.
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Because the relationship between voltage, current, and resistance in…
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In this hands-on electronics experiment, construct a signal generator circuit that creates two different types of ramp signals and learn how capacitors charge when connected to resistors and constant current sources.
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Let’s take the following example circuit and analyze it: …
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No text on electrical metering could be called complete without a…
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Design a passive circuit that will create a "split” ( V/-V) power…
Worksheets - Passives
As an instructor of electronics, I am called upon frequently to help…
Worksheets - Passives
Suppose we had a simple one-battery, one-lamp circuit controlled by a…
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We can take the same components from the series circuit and rearrange…
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In any electrically conductive substance, what are charge carriers?…
Worksheets - Passives
What is an Operational Amplifier (Op-amp)? Operational Amplifiers,…
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Most integrated circuits are digital, based on MOS (CMOS) transistors.…
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What is Kirchhoff’s Voltage Law (KVL)? The principle known as…
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When inductors are connected in series, the total inductance is the…
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Once again, when building battery/resistor circuits, the student or…
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Don’t just sit there! Build something!! Learning to mathematically…
Worksheets - Passives
Counting practice: count from zero to thirty-one in binary, octal, and…
Worksheets - Passives
Convert to and from different units of length, weight, power, temperature and torque
Tools
The R/2R DAC circuit is an alternative to the binary-weighted-input…
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Most of us have experienced some form of electric “shock,”…
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Pure resistive AC circuit: voltage and current are in phase. …
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Protective relays are special power-sensing devices whose job it is to…
Worksheets - Passives
Worksheets - Passives
Why learn about Karnaugh maps? The Karnaugh map, like Boolean…
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Power Equation of Ohm’s Law and Joule’s Law …
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The use of variable voltage for instrumentation signals seems a rather…
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In this hands-on electronics experiment, you will compare the resistance of a lamp filament in its on and off states and learn about nonlinear resistances by applying Ohm's law.
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Don’t just sit there! Build something!! Learning to mathematically…
Worksheets - Passives
Contributors to this chapter are listed in chronological order of…
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In this hands-on introduction to electronics, you will experiment with a multimeter and learn how to measure resistance using the ohmmeter function.
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A mathematician named DeMorgan developed a pair of important rules…
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What are Simultaneous Equations and Systems of Equations? The terms…
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This calculator helps you determine the values of the resistors R1 and R2 to be used for a T-pad attenuator.
Tools
In the simplest terms you can think of, define what an electrical…
Worksheets - Passives
When an alternator produces AC voltage, the voltage switches polarity…
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In this hands-on electronics experiment, you will build a monostable multivibrator using a 555 timer IC and learn about RC time constant charging and how a one-shot timer operates.
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When analyzing complex series and parallel circuits, it is easy to…
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Worksheets - Passives
The Insulated-Gate Field-Effect Transistor (IGFET), also known as…
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Standing waves at the resonant frequency points of an open- or…
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Testing a JFET with a multimeter might seem to be a relatively easy…
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The metric system, besides being a collection of measurement units for…
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This page provides a step-by-step introduction to using the mesh…
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In this hands-on semiconductor electronics experiment, build a simple DC voltage regulator circuit and learn how to use reverse-biased Zener diodes as voltage clamps.
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As with inductors, the ideal capacitor is a purely reactive device,…
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In this hands-on electronics experiment, you will build a simple voltmeter and ammeter while learning some fundamentals about circuit measurements.
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“Garbage in, garbage out.” —Anonymous SPICE…
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