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The Junction Field-effect Transistor (JFET) as a Switch

Textbook

Like its bipolar cousin, the field-effect transistor may be used as an…

The Cascode Amplifier

Textbook

While the C-B (common-base) amplifier is known for wider bandwidth…

Simple Parallel (Tank Circuit) Resonance

Textbook

Resonance in a Tank Circuit A condition of resonance will be…

Performance-Based Assessments for Analog Integrated Circuit Competencies

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Mixed-Frequency Signals

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What is a harmonic frequency? If an oscillator circuit outputs a…

OpAmp Oscillator Circuits

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

Rectifier/Filter Circuit

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PARTS AND MATERIALS Low-voltage AC power supply Bridge rectifier pack…

Resonant Filters

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So far, the filter designs we’ve concentrated on have employed…

Thyristor Application Circuits

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Quantum Devices

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Most integrated circuits are digital, based on MOS (CMOS) transistors.…

Example Circuits and Netlists

Textbook

The following circuits are pre-tested netlists for SPICE 2g6, complete…

Passive Filter Circuits

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

Special-purpose Diodes

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

Bipolar Junction Transistor (BJT) theory

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LC Resonant Frequency Calculator

Tools

A circuit with an inductor (L) and capacitor (C) connected in parallel or series will have a resonant frequency at which their impedances are equal. Given two of the three values—inductance, capacitance, or resonant frequency—this tool will calculate the missing third variable.

Meter Check of a Transistor (JFET)

Textbook

Testing a JFET with a multimeter might seem to be a relatively easy…

Circuit Components

Textbook

Remember that this tutorial is not exhaustive by any means, and that…

Calculus for Electric Circuits

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∫f(x) dx Calculus alert! Calculus is a branch of mathematics that…

Biasing Techniques (BJT)

Textbook

In the common-emitter section of this chapter, we saw a SPICE analysis…

Active Filters

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555 Hysteretic Oscillator

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

Negative Feedback OpAmp Circuits

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Autotransformers

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

Rectifier/Filter Circuit

Textbook

PARTS AND MATERIALS Low-voltage AC power supply Bridge rectifier pack…

The Common-collector Amplifier

Textbook

Our next transistor configuration to study is a bit simpler for gain…

Three-phase Power Systems

Textbook

What is Split-Phase Power Systems? Split-phase power systems achieve…

AC Negative Feedback OpAmp Circuits

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Bipolar Junction Transistor (BJT) theory

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Practical Considerations of ADC Circuits

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Perhaps the most important consideration of an ADC is its resolution.…

Basic Electricity Worksheet

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

BJT Amplifier Troubleshooting

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

Logic Signal Voltage Levels

Textbook

Input Voltages for Logic Gates Logic gate circuits are designed to…

Transistors, Insulated-gate Field-effect (IGFET or MOSFET)

Textbook

We have the symbols for depletion mode and enhancement mode MOSFETs -…

The NOT Gate

Textbook

The single-transistor inverter circuit illustrated earlier is actually…

True, Reactive, and Apparent Power

Textbook

Reactive Power We know that reactive loads such as inductors and…

Voltage Comparator

Textbook

Parts and Materials Operational amplifier, model 1458 or 353…

JFET Current Regulator

Textbook

PARTS AND MATERIALS One N-channel junction field-effect transistor,…

Meter Check of a Transistor (BJT)

Textbook

Bipolar transistors are constructed of a three-layer semiconductor…

Hand Calculator Use

Textbook

To enter numbers in scientific notation into a hand calculator, there…

Other Waveshapes

Textbook

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

Coil Inductance Calculator

Tools

This calculator computes the inductance of a wire coil.

The Pentode

Textbook

Another strategy for addressing the problem of secondary electrons…

Power Calculations

Textbook

When calculating the power dissipation of resistive components, use…

Series and Parallel Inductors

Textbook

When inductors are connected in series, the total inductance is the…

Waveform Analysis

Textbook

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

Superposition Theorem

Textbook

Superposition theorem is one of those strokes of genius that takes a…

SPICE Quirks

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“Garbage in, garbage out.” —Anonymous SPICE is a…

Series and Parallel AC Circuits

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Table (portrait view)

Textbook

  Periodic table of chemical elements.

Parallel R, L, and C

Textbook

We can take the same components from the series circuit and rearrange…

Sum and Product Notation

Textbook

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

Contributors (4)

Textbook

Contributors to this chapter are listed in chronological order of…

The S-R Latch

Textbook

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

Trigonometric Equivalencies

Textbook

Introduction to Operational Amplifiers (Op-amps)

Textbook

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

Introduction to Digital-Analog Conversion

Textbook

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

Meter Check of a Transistor (JFET)

Textbook

Testing a JFET with a multimeter might seem to be a relatively easy…

Active-mode Operation (IGFET)

Textbook

OpAmp Oscillator Circuits

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

Introduction to DC Circuits

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“DC” stands for Direct Current, which can refer to either…