Latest Filters Education

Categories

Mixed-Frequency Signals

Worksheets - Filters

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

Conventional Transistor Overview and Special Transistors

Worksheets - Filters

A microcontroller is a specialized type of digital computer used to…

Class A BJT Amplifiers

Worksheets - Filters

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

Transistor Biasing Calculations

Textbook

Although transistor switching circuits operate without bias, it is…

Performance-Based Assessments for Analog Integrated Circuit Competencies

Worksheets - Filters

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

Textbook

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

Biasing Techniques (BJT)

Textbook

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

Negative Feedback OpAmp Circuits

Worksheets - Filters

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

Analog Lab - Op Amp Integrator

Textbook

In this hands-on electronics experiment, you will build an analog integrator using an operational amplifier and learn about integration functions, op amp input bias currents, and how to limit the voltage swing of a potentiometer.

Decibel Calculator

Tools

This calculator will convert voltage or power gains into decibels. Enter one of the three values and the calculator will output the other two.

Calculus for Electric Circuits

Worksheets - Filters

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

Analog-to-Digital Conversion

Worksheets - Filters

The circuit shown here is a four-bit analog-to-digital converter…

Junction Field-effect Transistors

Textbook

The field effect transistor was proposed by Julius Lilienfeld in US…

Battery Life Calculator

Tools

This calculator provides three options—basic, intermediate, and advanced—for determining expected battery life for microcontroller, Internet of Things (IoT), and edge processing systems with up to four different operating modes.

Switched Capacitor Circuitry

Worksheets - Filters

Write an equation describing the precise mathematical relationship…

Special-purpose Diodes

Textbook

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

Si Lab - JFET Current Regulator

Textbook

In this hands-on semiconductor electronics experiment, build a junction field-effect transistor (JFET) current regulator and learn some of the advantages of JFETs over BJTs for current regulation.

Meter Check of a Transistor (JFET)

Textbook

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

Simple Parallel (Tank Circuit) Resonance

Textbook

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

Active Filters

Worksheets - Filters

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

Elementary Amplifier Theory

Worksheets - Filters

Fundamentally, an amplifier is a device that takes in a low-power…

The NOT Gate

Textbook

The single-transistor inverter circuit illustrated earlier is actually…

Square Root, Cube Root, and Nth Root Calculator

Tools

This calculator will determine the square root, cube root, or nth root of a given number, x.

555 Lab - Monostable Multivibrator (One-shot)

Textbook

In this hands-on electronics experiment, you will build a monostable multivibrator using a 555 timer IC and learn about RC time constant charging and how a one-shot timer operates.

Si Lab - Simple Op Amp

Textbook

In this hands-on semiconductor electronics experiment, build a custom operational amplifier (op amp) and learn about the application of current mirrors and the use of negative feedback in op amp circuits.

Physiological Effects of Electricity

Textbook

Most of us have experienced some form of electric “shock,”…

Building Series-Parallel Resistor Circuits

Textbook

Once again, when building battery/resistor circuits, the student or…

Multi-Stage Transistor Amplifiers

Worksheets - Filters

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

The Common-base Amplifier

Textbook

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

DC Lab - Potentiometer as a Rheostat

Textbook

In this hands-on electronics experiment, you will use a potentiometer as a variable resistor to control the speed of a motor and learn how to connect a potentiometer as a rheostat.

IGFET Amplifiers

Worksheets - Filters

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

Pulse Width Modulation

Textbook

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

AC Phase

Textbook

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

Insulated-gate Field-effect Transistors (MOSFET)

Textbook

The Insulated-Gate Field-Effect Transistor (IGFET), also known as…

Magnetic Fields and Inductance

Textbook

Whenever electrons flow through a conductor, a magnetic field will…

Meter Check of a Transistor (JFET)

Textbook

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

Phase-locked Loops

Textbook

Transistors, Bipolar

Textbook

There are not too many circuit symbols for bipolar transistors. There…

How to Use Thevenin’s Theorem

Textbook

This page will walk you step-by-step through the process of…

Analog and Digital Signals

Textbook

Instrumentation is a field of study and work centering on measurement…

Karnaugh Maps, Truth Tables, and Boolean Expressions

Textbook

Who Developed the Karnaugh Map? Maurice Karnaugh, a…

Decibel Measurements

Worksheets - Filters

During the early development of telephone technology, a unit was…

Operational Amplifier Models

Textbook

While mention of operational amplifiers typically provokes visions of…

The Common-emitter Amplifier

Textbook

At the beginning of this chapter, it illustrates how transistors could…

Successive Approximation ADC

Textbook

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

What is Alternating Current (AC)?

Textbook

Most students of electricity begin their study with what is known as…

Ohm’s Law - How Voltage, Current, and Resistance Relate

Textbook

The first, and perhaps most important, relationship between current,…

Series Circuit Rules

Textbook

Current Components in a series circuit share the same current: Itotal…

Noise Figure Calculator

Tools

A tool designed to calculate the noise figure of cascaded amplifiers

Mutual Inductance

Textbook

If two coils of wire are brought into close proximity with each other…

Programmable Logic Controllers (PLC)

Textbook

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

Ring Counters

Textbook

If the output of a shift register is fed back to the input. a ring…

Analysis Options

Textbook

AC ANALYSIS: General form: .ac [curve] [points] [start] [final]…

Series and Parallel Component Equivalent Values

Textbook

Series and Parallel Resistances     Series and Parallel…

AC Lab - Using a Transformer to Build a 12 VAC Power Supply

Textbook

In this hands-on AC electronics experiment, build a 12 V alternating current (AC) power supply using a step-down transformer and learn about transformer operation and the purpose of tapped windings.

Microprocessors

Textbook

Early computer science pioneers such as Alan Turing and John Von…

Si Lab - Commutating Diode

Textbook

In this hands-on semiconductor electronics experiment, build a simple circuit that will teach you how to use a commutating diode to reduce inductive kickback.

Voltage Multipliers (Doublers, Triplers, Quadruplers, and More)

Textbook

A voltage multiplier is a specialized rectifier circuit producing…

Digital Lab - 7-segment LED Display

Textbook

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.

Coil Inductance Calculator

Tools

This calculator computes the inductance of a wire coil.