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Design Project: Stepper Motor Driver

Worksheets - Processors

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

Quantum Devices

Textbook

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

Practical Considerations of ADC Circuits

Textbook

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

Finite State Machines

Textbook

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

Microcontroller Principles

Worksheets - Processors

Read the following quotation, and then research the term…

Electromechanical Relay Logic

Worksheets - Processors

In ladder logic symbolism, an electromechanical relay coil is shown as…

Tracking ADC

Textbook

A third variation on the counter-DAC-based converter theme is, in my…

Analog-to-Digital Conversion

Worksheets - Processors

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

Shift Registers: Serial-in, Serial-out

Textbook

Serial-in, serial-out shift registers delay data by one clock time for…

Digital Lab - Digital Combination Lock

Textbook

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.

Digital-to-Analog Conversion

Worksheets - Processors

If a pulse-width modulated (PWM) signal is sent to a passive…

Encoder

Textbook

What is an Encoder? An encoder is a circuit that changes a set of…

Modern Nonmechanical Memory

Textbook

Now we can proceed to studying specific types of digital storage…

Introduction to Combinational Logic Functions

Textbook

The term “combinational” comes to us from mathematics. In…

Microprocessors

Textbook

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

Digital Ramp ADC

Textbook

Also known as the stairstep-ramp, or simply counter A/D converter,…

Logic Signal Voltage Levels

Textbook

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

Karnaugh Maps, Truth Tables, and Boolean Expressions

Textbook

Who Developed the Karnaugh Map? Maurice Karnaugh, a…

The R/2nR DAC: Binary-Weighted-Input Digital-to-Analog Converter

Textbook

What Is a R/2nR DAC Circuit? The R/2nR DAC circuit, otherwise known as…

The J-K Flip-Flop

Textbook

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

Programmable Logic Controllers

Worksheets - Processors

The Programmable Logic Controller, or PLC, was invented in the late…

Binary Count Sequence

Textbook

If we examine a four-bit binary count sequence from 0000 to 1111, a…

Bipolar Junction Transistors as Switches

Worksheets - Processors

Solid-state switching circuits usually keep their constituent…

Digital Lab - 3-bit Binary Counter

Textbook

In this hands-on electronics experiment, build a 3-bit down counter using J-K flip-flops and learn about asynchronous counter functionality.

Practical considerations - Digital Communication

Textbook

A principal consideration for industrial control networks, where the…

Binary Addition

Textbook

The Rules of Binary Addition Adding binary numbers is a very simple…

Why digital?

Textbook

Although many textbooks provide good introductions to digital memory…

Network Protocols

Textbook

Aside from the issues of the physical network (signal types and…

Quantum Devices

Textbook

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

Safe Meter Usage

Textbook

Using an electrical meter safely and efficiently is perhaps the most…

Capacitor Types

Textbook

A capacitor is a passive two-terminal electronic component that…

Capacitance Calculator

Tools

This calculates the capacitance of a capacitor based on its charge, Q, and its voltage, V, according to the formula, C=Q/V.

DC Motor Theory

Worksheets - Processors

If the ends of a wire loop are attached to two half-circular metal…

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.

The Shockley Diode

Textbook

Our exploration of thyristors begins with a device called the…

Microstrip Impedance Calculator

Tools

This calculator helps you compute the characteristic impedance of a microstrip.

Si Lab - A Simple BJT Current Mirror Circuit

Textbook

In this hands-on semiconductor electronics experiment, build a simple current mirror using matched bipolar junction transistors (BJTs) and learn about current mirror circuit limitations, the temperature dependence of BJTs, and thermal runaway.

Potentiometers

Worksheets - Processors

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

Digital-to-Analog Conversion

Worksheets - Processors

If a pulse-width modulated (PWM) signal is sent to a passive…

Conductors and Insulators

Worksheets - Processors

Given two lengths of metal wire, which one will have the least…

Digital Memory Terms and Concepts

Textbook

When we store information in some kind of circuit or device, we not…

Building a Differential Amplifier

Textbook

Differential Op-Amp Circuits An op-amp with no feedback is already a…

Ideal Diode Current and Voltage Calculator

Tools

This calculator solves for any single missing value in the ideal diode I-V equation for a forward-biased PN-junction diode. Parameters are current, saturation current, voltage, temperature, and ideality factor.

Measurement Circuits

Textbook

Figure below shows a photodiode amplifier for measuring low levels of…

Trace Resistance Calculator

Tools

This calculator determines the resistance of a microstrip trace

Capacitance, Reactance, and Admittance Calculator

Tools

A calculator for solving the capacitance, reactance, and admittance of a capacitor.

Demultiplexers

Textbook

A demultiplexer, sometimes abbreviated dmux, is a circuit that has one…

Capacitors and Calculus

Textbook

Capacitors do not have a stable “resistance” as conductors…

Maximum Power Transfer Theorem

Textbook

The Maximum Power Transfer Theorem is not so much a means of analysis…