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A more connected and convenient vehicle

In partnership with Texas Instruments

Our advancements in body electronics, infotainment and telematics technologies have made vehicles…

Analog Power and Signal Chain in Automotive Body Motor EEs

In partnership with Texas Instruments

Learn more about the end equipments power and signal chain components are part of in automotive body…

LED Sequencer

Textbook

PARTS AND MATERIALS 4017 decade counter/divider (Radio Shack catalog…

AC phase

Worksheets - Lighting

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

Current Divider Circuits

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

Design Project: LED Stroboscope

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A technician uses a stroboscope to “freeze” the rotation of a…

Switches

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What is the purpose of the switch shown in this schematic diagram?

Thyristor Application Circuits

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

CMOS 555 Long Duration Minimum Parts Red LED Flasher

Textbook

PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…

CMOS 555 Long Duration Red LED Flasher

Textbook

PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…

Special-purpose Diodes

Textbook

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

Static Electricity

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What does it mean for an object to have an electric charge? Give an…

CMOS 555 Long Duration Flyback LED Flasher

Textbook

PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…

Thyristors

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

Rectifier Circuits

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

Pulsed-light Sensor

Textbook

PARTS AND MATERIALS Two 6-volt batteries One NPN…

Light-Pulse Switch

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It is fairly important to use large value resistors (10 MΩ works…

Convert MCD to Lumens

Tools

This calculator is useful for calculating the luminous flux for LEDs where the angle is known.

LED Resistor Calculator

Tools

An LED resistance calculator is perfect for when you have a single LED and need to know which resistor you should use.

AC Motor Theory

Worksheets - Lighting

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

Circuits and the Speed of Light

Textbook

Suppose we had a simple one-battery, one-lamp circuit controlled by a…

CMOS 555 Long Duration Blue LED Flasher

Textbook

PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…

Resistors

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

Averager and Summer Circuits

Textbook

If we take three equal resistors and connect one end of each to a…

Introduction to Digital-Analog Conversion

Textbook

Connecting digital circuitry to sensor devices is simple if the sensor…

Time Constant Equations

Textbook

Value of time constant in series RC and RL circuits   Time…

Temperature Coefficient of Resistance

Textbook

You might have noticed on the table for specific resistances that all…

Switched Capacitor Circuitry

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Write an equation describing the precise mathematical relationship…

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

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

Digital Ramp ADC

Textbook

Also known as the stairstep-ramp, or simply counter A/D converter,…

Universal Shift Registers: Parallel-in, Parallel-out

Textbook

The purpose of the parallel-in/ parallel-out shift register is to take…

Resistance

Textbook

The circuit in the previous section is not a very practical one. In…

Class B Audio Amplifier

Textbook

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

Branch Current Method

Textbook

The first and most straightforward network analysis technique is…

Audio Oscillator

Textbook

PARTS AND MATERIALS Two 6-volt batteries Three NPN…

Waveguides

Textbook

A waveguide is a special form of transmission line consisting of a…

Bridged-Tee Attenuator Calculator

Tools

This calculator helps you determine the values of the resistors R1 and R2 to be used for a bridged-tee attenuator.

Transistor Ratings and Packages (JFET)

Textbook

Edge Coupled Microstrip Impedance Calculator

Tools

This tool helps calculate the impedance of an edge coupled microstrip.

Introduction to Operational Amplifiers (Op-amps)

Textbook

What is an Operational Amplifier (Op-amp)? Operational Amplifiers,…

Design Project: Event Counter

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If your event sensing switch is mechanical in nature, you will likely…

The Common-drain Amplifier (IGFET)

Textbook

AC Metrology

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In power distribution systems, it is very important to be able to…

How to Use an Ammeter to Measure Current

Textbook

Parts and Materials   6-volt battery   6-volt incandescent…

Ohm’s Law

Textbook

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

Electromagnetic Induction Experiment

Textbook

PARTS AND MATERIALS Electromagnet from previous experiment Permanent…

Measurements of AC Magnitude

Textbook

So far we know that AC voltage alternates in polarity and AC current…

Design Project: DC Voltage Regulator

Worksheets - Lighting

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

Slope (integrating) ADC

Textbook

So far, we’ve only been able to escape the sheer volume of…

Absolute dB scales

Textbook

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

Waveguide Calculator (Circular)

Tools

This tool calculates the cutoff frequency of a circular waveguide

Oscillator Circuits

Textbook

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

Electron Tubes

Textbook

Cathode:   This is the electrode that is heated and emits the…

Clamper Circuits

Textbook

The circuits in the figure below are known as clampers or DC…

DC Motor Control Circuits

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How is it possible to electrically measure the torque output by a…

The Command-line Interface

Textbook

If you’ve used DOS or UNIX operating systems before in a…

Universal Shift Registers: Parallel-in, Parallel-out

Textbook

The purpose of the parallel-in/ parallel-out shift register is to take…

Op-Amp Practical Considerations

Textbook

Real operational amplifiers have some imperfections compared to an…

T-Match Impedance Matching Circuits

Tools

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

Inductors

Textbook

An inductor is a passive two-terminal electrical component that…

Introduction to Network Theorems

Textbook

Anyone who’s studied geometry should be familiar with the…

AC Inductor Circuits

Textbook

Resistors vs. Inductors Inductors do not behave the same way as…