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3D time-of-flight sensor theory of operation

In partnership with Texas Instruments

Explore the theory of operation behind 3D time of flight sensors.

Achieve Precise Measurement for Smoke Detector Designs

In partnership with Texas Instruments

This video provides an introduction to the internal components of typical smoke detectors.

Phase-Locked Loops

Worksheets - Audio

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

BJT Amplifier Troubleshooting

Worksheets - Audio

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

Design Project: Audio Power Amplifier

Worksheets - Audio

Explain how the microphone in your amplifier works. How, exactly, does…

PC Oscilloscope

Textbook

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

Waveform Analysis

Textbook

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

Basic Electromagnetism and Electromagnetic Induction

Worksheets - Audio

When lightning strikes, nearby magnetic compass needles may be seen to…

Sensitive Voltage Detector

Textbook

PARTS AND MATERIALS High-quality “closed-cup” audio…

Pulsed-light Sensor

Textbook

PARTS AND MATERIALS Two 6-volt batteries One NPN…

AC Network Analysis

Worksheets - Audio

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

“Long’’ and “Short’’ Transmission Lines

Textbook

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

Multi-Stage Transistor Amplifiers

Worksheets - Audio

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

The “Operational” Amplifier

Textbook

Long before the advent of digital electronic technology, computers…

Standing Waves and Resonance

Textbook

Whenever there is a mismatch of impedance between transmission line…

Performance-Based Assessments for Semiconductor Circuit Competencies

Worksheets - Audio

Resonance

Worksheets - Audio

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

Summer and Subtractor OpAmp Circuits

Worksheets - Audio

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

Wire-by-Number project kit introduction

Worksheets - Audio

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

Sensitive Audio Detector

Textbook

PARTS AND MATERIALS High-quality “closed-cup” audio…

Bipolar Transistor Biasing Circuits

Worksheets - Audio

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

Class B Audio Amplifier

Textbook

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

The Common-base Amplifier

Textbook

The final transistor amplifier configuration (Figure below) we need to…

Resistor Color Codes

Textbook

Try out our Resistor Color Code Calculator in our Tools section.…

Autotransformers

Worksheets - Audio

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

Simple Series Resonance

Textbook

A similar effect happens in series inductive/capacitive circuits. When…

Bipolar Junction Transistor (BJT) theory

Worksheets - Audio

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

What is a Series-Parallel Circuit?

Textbook

With simple series circuits, all components are connected end-to-end…

The NOT Gate

Textbook

The single-transistor inverter circuit illustrated earlier is actually…

Wire Stripline Impedance Calculator

Tools

A calculator for computing the impedance of a wire stripline.

TTL NOR and OR gates

Textbook

Let’s examine the following TTL circuit and analyze its…

Electromagnetism Experiment

Textbook

PARTS AND MATERIALS 6-volt battery Magnetic compass Small permanent…

Special Transformers and Applications

Textbook

Impedance Matching Because transformers can step voltage and current…

Safe Practices

Textbook

If at all possible, shut off the power to a circuit before performing…

Switches, Hand Actuated

Textbook

555 Monostable Multivibrator

Textbook

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

Calculating Electric Power

Textbook

Learn the Power Formula We’ve seen the formula for determining…

Millman’s Theorem

Worksheets - Audio

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

Pulse Width Modulation

Textbook

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

Sum and Product Notation

Textbook

For reference, this section introduces the terminology used in some…

Definite Integrals and the Fundamental Theorem of Calculus

Textbook

Counters

Worksheets - Audio

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

Rheostat Range Limiting

Textbook

PARTS AND MATERIALS Several 10 kΩ resistors One 10 kΩ…

Voltage Divider Calculator

Tools

The voltage divider is a circuit used to create a voltage less than or equal to the input voltage.

Resistor Color Codes

Textbook

Try out our Resistor Color Code Calculator in our Tools section.…

Rate-of-change Indicator

Textbook

PARTS AND MATERIALS Two 6 volt batteries Capacitor, 0.1 µF…

Numeration Systems

Worksheets - Audio

Digital computers communicate with external devices through ports:…

Voltage, Current, and Resistance

Worksheets - Audio

Voltage is commonly defined as “electrical pressure.” The unit of…

Capacitor Charge and Time Constant Calculator

Tools

This calculator computes for the capacitor charge time and energy, given the supply voltage and the added series resistance.

Karnaugh Maps, Truth Tables, and Boolean Expressions

Textbook

Who Developed the Karnaugh Map? Maurice Karnaugh, a…

Synchronous Condenser

Textbook

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

Amplifier Impedances

Textbook

Input impedance varies considerably with the circuit configuration…

Single-ended and Differential Amplifiers

Textbook

For ease of drawing complex circuit diagrams, electronic amplifiers…

The J-K Flip-Flop

Textbook

Another variation on a theme of bistable multivibrators is the J-K…

Introduction to Bipolar Junction Transistors (BJT)

Textbook

The invention of the bipolar transistor in 1948 ushered in a…

Simple Op-Amp

Textbook

PARTS AND MATERIALS Two 6-volt batteries Four NPN…

Finite State Machines

Textbook

Up to now, every circuit that was presented was a combinatorial…

Circuit Effects

Textbook

The principle of non-sinusoidal, repeating waveforms being equivalent…

Contributors (10)

Textbook

Contributors to this chapter are listed in chronological order of…

The Silicon-Controlled Switch (SCS)

Textbook

If we take the equivalent circuit of an SCR and add another external…

Harmonics in Polyphase Power Systems

Textbook

In the chapter on mixed-frequency signals, we explored the concept of…

Digital Logic Functions

Textbook

We can construct simple logic functions for our hypothetical lamp…