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Design Project: LED Stroboscope

Design Project: LED Stroboscope

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


Worksheets - Optoelectronics

555 Lab - Blue LED Flasher With Voltage Doubler

555 Lab - Blue LED Flasher With Voltage Doubler

In this hands-on electronics experiment, build a blue LED flasher using a 555 timer and learn the basic theory of a voltage doubler using a transistor switch and a capacitor.


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Si Lab - Light Sensor (LED Photodetector)

Si Lab - Light Sensor (LED Photodetector)

In this hands-on semiconductor electronics experiment, use an LED as a light-sensitive photodetector and learn how to use a bipolar transistor in a common-emitter amplifier configuration.


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Karnaugh Mapping

Karnaugh Mapping

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


Worksheets - Optoelectronics

Optoelectronic Devices

Optoelectronic Devices

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


Worksheets - Optoelectronics

Convert MCD to Lumens

Convert MCD to Lumens

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


Tools

Digital Lab - 10-bit Flashing LED Sequencer

Digital Lab - 10-bit Flashing LED Sequencer

In this hands-on electronics experiment, build and test an automated circuit that sequentially flashes 10 LED, and learn about counters, frequency dividers, and switch debouncing.


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Digital Display Circuits

Digital Display Circuits

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


Worksheets - Optoelectronics

Special-purpose Diodes

Special-purpose Diodes

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


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555 Lab - LED Flasher with Inductive Flyback

555 Lab - LED Flasher with Inductive Flyback

In this hands-on electronics experiment, build a multiple LED flasher and learn how to use inductive flyback to generate a voltage pulse that is greater than the supply voltage.


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555 Lab - Advanced Red LED Flasher

555 Lab - Advanced Red LED Flasher

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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555 Lab - Red LED Flasher

555 Lab - Red LED Flasher

In this hands-on electronics experiment, you will build a red LED flasher and learn a useful application of the versatile 555 timer IC.


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Display Tubes

Display Tubes

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


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Series LED Resistor Calculator

Series LED Resistor Calculator

This series LED resistance calculator is perfect for when you have a single LED or a number of the same color of LEDs in series and need to know which resistor you should use.


Tools

Digital Lab - 7-segment LED Display

Digital Lab - 7-segment LED Display

In this hands-on electronics experiment, you will control a 7-segment binary-coded decimal (BCD) display and learn about active-low and active-high logic inputs.


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Programmable Logic Controllers (PLC)

Programmable Logic Controllers (PLC)

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


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Si Lab - Bipolar Transistor as a Switch

Si Lab - Bipolar Transistor as a Switch

In this hands-on semiconductor electronics experiment, use a bipolar junction transistor (BJT) to switch an LED and learn about the current their amplification.


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Digital Lab - Digital Combination Lock

Digital Lab - Digital Combination Lock

In this hands-on electronics experiment, build a digital combination lock with LED output indicators and learn about XOR gate functionality and how to implement NOR logic functionality using diodes.


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Synchronous Motors

Synchronous Motors

Single Phase Synchronous Motors Single-phase synchronous motors are…


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Arc Flash and Arc Blast

Arc Flash and Arc Blast

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


Worksheets - Optoelectronics

Inductance

Inductance

∫f(x) dx Calculus alert! One of the fundamental principles of…


Worksheets - Optoelectronics

OpAmp Oscillator Circuits

OpAmp Oscillator Circuits

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


Worksheets - Optoelectronics

AC Resistor Circuits (Capacitive)

AC Resistor Circuits (Capacitive)

Pure resistive AC circuit: voltage and current are in phase.  …


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Network Topology

Network Topology

Point-to-Point Connecting two digital devices with a network, would…


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Arithmetic with Scientific Notation

Arithmetic with Scientific Notation

The benefits of scientific notation do not end with ease of writing…


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Series-Parallel Combination AC Circuits

Series-Parallel Combination AC Circuits

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


Worksheets - Optoelectronics

What Are Zener Diodes?

What Are Zener Diodes?

What Is a Zener Diode? A Zener diode is a special type of rectifying…


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Digital Logic Functions

Digital Logic Functions

We can construct a simple logic functions for our hypothetical lamp…


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Frequency and Phase Measurement

Frequency and Phase Measurement

An important electrical quantity with no equivalent in DC circuits is…


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Other Waveshapes

Other Waveshapes

As strange as it may seem, any repeating, non-sinusoidal waveform is…


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Definite Integrals and the Fundamental Theorem of Calculus

Definite Integrals and the Fundamental Theorem of Calculus

        RELATED WORKSHEET: Calculus for Electric…


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Specific Troubleshooting Techniques

Specific Troubleshooting Techniques

After applying some of the general troubleshooting tips to narrow the…


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Converting Between Thevenin and Norton Equivalent Circuits

Converting Between Thevenin and Norton Equivalent Circuits

Since Thevenin’s theorem and Norton’s theorems are two…


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Kirchhoff’s Laws

Kirchhoff’s Laws

Many electronic circuits use what is called a split or a dual power…


Worksheets - Optoelectronics

Successive Approximation ADC

Successive Approximation ADC

One method of addressing the digital ramp ADC’s shortcomings is…


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Solving for Unknown Time

Solving for Unknown Time

Sometimes it is necessary to determine the length of time that a…


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Passive Filter Circuits

Passive Filter Circuits

In very simple, qualitative terms, rate the impedance of capacitors…


Worksheets - Optoelectronics

Motor Control Circuits

Motor Control Circuits

The interlock contacts installed in the previous section’s motor…


Textbook

Pi-Match Impedance Matching Calculator

Pi-Match Impedance Matching Calculator

This calculator is designed to compute the parameters required to design a Pi-Match Impedance Circuit


Tools

Transistor Ratings and Packages (JFET)

Transistor Ratings and Packages (JFET)


Textbook

Divided Feedback

Divided Feedback

If we add a voltage divider to the negative feedback wiring so that…


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Copper Wire Ampacity Table

Copper Wire Ampacity Table

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


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The Common-gate Amplifier (JFET)

The Common-gate Amplifier (JFET)

RELATED WORKSHEETS: JFET Amplifiers Worksheet


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Practical Considerations - Transformers

Practical Considerations - Transformers

Power Capacity As has already been observed, transformers must be well…


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Time Constant Circuits

Time Constant Circuits

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


Worksheets - Optoelectronics

The Common-drain Amplifier (IGFET)

The Common-drain Amplifier (IGFET)


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Voltage Regulation

Voltage Regulation

As we saw in a few SPICE analyses earlier in this chapter, the output…


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Current Signal Systems

Current Signal Systems

Current Source It is possible through the use of electronic amplifiers…


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Square Wave Signals

Square Wave Signals

It has been found that any repeating, non-sinusoidal waveform can be…


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Contributors (9)

Contributors (9)

Contributors to this chapter are listed in chronological order of…


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The Common-source Amplifier (JFET)

The Common-source Amplifier (JFET)

RELATED WORKSHEETS: JFET Amplifiers Worksheet


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Design Project: Stepper Motor Driver

Design Project: Stepper Motor Driver

At first it may seem pointless to have the four buffer gates following…


Worksheets - Optoelectronics

What Is the Skin Effect?

What Is the Skin Effect?

The Skin Depth of Copper in Electrical Engineering As previously…


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Phasing

Phasing

Since transformers are essentially AC devices, we need to be aware of…


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Basic Operational Amplifiers

Basic Operational Amplifiers

Determine the output voltage polarity of this op-amp (with reference…


Worksheets - Optoelectronics

555 Lab - Advanced Red LED Flasher

555 Lab - Advanced Red LED Flasher

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.


Textbook

The S-R Latch

The S-R Latch

A bistable multivibrator has two stable states, as indicated by the…


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Performance-Based Assessments for Semiconductor Circuit Competencies

Performance-Based Assessments for Semiconductor Circuit Competencies


Worksheets - Optoelectronics

Kelvin (4-wire) Resistance Measurement

Kelvin (4-wire) Resistance Measurement

Suppose we wished to measure the resistance of some component located…


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