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3D Time of Flight: Understanding the system trade-offs

In partnership with Texas Instruments

Learn how design parameters impact system performance.

3D time-of-flight sensor theory of operation

In partnership with Texas Instruments

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

Pulsed-light Sensor

Textbook

PARTS AND MATERIALS Two 6-volt batteries One NPN transistor—models…

Optoelectronic Devices

Worksheets - Optical Sensors

In this circuit, the electric motor is supposed to turn on whenever…

LED Sequencer

Textbook

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

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.

Convert MCD to Lumens

Tools

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

Digital Display Circuits

Worksheets - Optical Sensors

What is the purpose of a seven-segment decoder circuit? What is a…

Simple Combination Lock

Textbook

PARTS AND MATERIALS 4001 quad NOR gate (Radio Shack catalog #…

Programmable Logic Controllers (PLC)

Textbook

Before the advent of solid-state logic circuits, logical control…

7-segment Display

Textbook

PARTS AND MATERIALS 4511 BCD-to-7seg latch/decoder/driver (Radio…

CMOS 555 Long Duration Blue 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…

Transistor as a Switch

Textbook

PARTS AND MATERIALS Two 6-volt batteries One NPN transistor—models…

CMOS 555 Long Duration Flyback 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…

CMOS 555 Long Duration Minimum Parts Red LED Flasher

Textbook

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

Karnaugh Mapping

Worksheets - Optical Sensors

Identify each of these logic gates by name, and complete their…

Design Project: LED Stroboscope

Worksheets - Optical Sensors

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

Display Tubes

Textbook

In addition to performing tasks of amplification and switching, tubes…

Decibels

Textbook

The Bel is Used to Represent Gain In its simplest form, an…

Transistors, junction field-effect (JFET)

Textbook

The 555 IC

Textbook

The 555 integrated circuit is the most popular chip ever…

Switch Types

Textbook

Though it may seem strange to cover the elementary topic of electrical…

Peak Detector

Textbook

A peak detector is a series connection of a diode and a…

Precise Diode Circuits

Worksheets - Optical Sensors

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

Servo Motor Systems

Worksheets - Optical Sensors

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

Flyback Switch Mode Regulator Calculator

Tools

A calculator for computing several parameters needed in the design of a flyback switch mode regulator

Copper Wire Ampacity Table

Textbook

Ampacities of copper wire, in free air at 30o C:…

Arc Flash and Arc Blast

Worksheets - Optical Sensors

Electromechanical relays used to start and stop high-power electric…

Active Loads in Amplifier Circuits

Worksheets - Optical Sensors

We know that the current in a series circuit may be calculated with…

Simple Series Resonance

Textbook

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

Common Derivatives

Textbook

Inverting and Noninverting OpAmp Voltage Amplifier Circuits

Worksheets - Optical Sensors

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

Current Divider Circuits

Worksheets - Optical Sensors

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

Peak, Average, and RMS Measurements

Worksheets - Optical Sensors

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

Finite-state Machine

Textbook

Feedback is a fascinating engineering principle. It can turn a rather…

Creating Custom Calibration Resistances

Textbook

Often in the course of designing and building electrical meter…

Ammeter Design

Worksheets - Optical Sensors

What would happen to this meter movement, if connected directly to a…

AC Phase

Textbook

Things start to get complicated when we need to relate two or more AC…