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Turn Your PWM into a DAC

Turn Your PWM into a DAC

If your microcontroller doesn’t have a digital-to-analog converter, you can make a passable replacement with nothing more than a pulse-width-modulated signal and a low-pass filter.


Linear Amplitude Modulation Applications

Linear Amplitude Modulation Applications

In this article, we'll delve into amplitude modulation and what it's used for. Also, we will differentiate between communication methods that do and do not use modulation.


How to Buffer an Op-Amp Output for Higher Current, Part 4

How to Buffer an Op-Amp Output for Higher Current, Part 4

If you choose to buffer with MOSFETs instead of BJTs, you need to consider the relationship between gate capacitance and instability.


How to Buffer an Op-Amp Output for Higher Current, Part 3

How to Buffer an Op-Amp Output for Higher Current, Part 3

The previous two articles focused on bipolar junction transistors. In this article, we’ll look at buffering with MOSFETs instead of BJTs.


How to Buffer an Op-Amp Output for Higher Current, Part 2

How to Buffer an Op-Amp Output for Higher Current, Part 2

In this article, we will look at two variations on the basic BJT current-buffering circuit.


How to Buffer an Op-Amp Output for Higher Current, Part 1

How to Buffer an Op-Amp Output for Higher Current, Part 1

Op-amps become even more versatile if you can use them in high-current applications. In this article, we will look at a basic current-buffering circuit.


C-BISCUIT Power: Crowbar Protection Circuit for 5V Regulator

C-BISCUIT Power: Crowbar Protection Circuit for 5V Regulator

Over-voltage and over-current protection circuit for use with the C-BISCUIT platform's main computer, the Wandboard.


Projects Mar 09, 2016 by Patrick Lloyd
Average Power Calculations of Periodic Functions

Average Power Calculations of Periodic Functions

This article is following up The Effects of Symmetry on the Fourier Coefficients. Topics will cover finding the average power delivered to a resistor, calculating the RMS value of a periodic function.


Prime Implicant Simplification Using Petrick’s Method

Prime Implicant Simplification Using Petrick’s Method

This article follows the Quine McCluskey method article. We will now finding essential prime implicants using Petrick's method, simplifying incompletely specified functions, and using map-entered variables.


Create a Laser Detection System Using a PICAXE

Create a Laser Detection System Using a PICAXE

Lasers are plentiful, inexpensive, and fun to use. Here's a target that reacts when it's hit by a laser beam.


Building Raspberry Pi Controllers Part 5: Reading Analog Data with an RPi

Building Raspberry Pi Controllers Part 5: Reading Analog Data with an RPi

Learn how to read electrical signals and data from an analog device using the Step Response technique in Part 5 of the Building Raspberry Pi Controllers series.


Projects Feb 09, 2016 by Don Wilcher
Embedded PID Temperature Control, Part 1: The Circuit

Embedded PID Temperature Control, Part 1: The Circuit

Invoke the power of the PID (proportional–integral–derivative controller)! The key components in this design are an EFM8 microcontroller, a DAC, and the MAX31855 thermocouple-to-digital converter.


Projects Feb 01, 2016 by Robert Keim
How to Eliminate Ground Loops with Signal Isolation

How to Eliminate Ground Loops with Signal Isolation

This project explains how to isolate signals to eliminate ground loops in electronic systems.


Projects Jan 29, 2016 by Orrin Bigelow
Design a Color Sensor with Measurements Displayed via an RGB LED Module, Part 2

Design a Color Sensor with Measurements Displayed via an RGB LED Module, Part 2

Learn how to collect and process RGB data generated by the BH1745NUC color sensor IC.


Projects Jan 23, 2016 by Robert Keim
Design a Color Sensor with Measurements Displayed via an RGB LED Module

Design a Color Sensor with Measurements Displayed via an RGB LED Module

Display colors by precisely controlling the intensity of red, green, and blue LEDs.


Projects Jan 22, 2016 by Robert Keim
A Breakdown of Class D Amplifiers

A Breakdown of Class D Amplifiers

Ever wanted to find out more about Class D amplification? Here's a handy breakdown.


An Overview of the Analysis and Transmission of Aperiodic Signals

An Overview of the Analysis and Transmission of Aperiodic Signals

A signal that does not repeat itself after a specific interval of time is called an aperiodic signal. By applying a limiting process, the signal can be expressed as a continuous sum (or integral) of everlasting exponentials.


Galvanic Isolation: Purpose and Methodologies

Galvanic Isolation: Purpose and Methodologies

Galvanic isolation is a way to isolate functional sections of electrical systems to prevent current flow. A brief explanation of differing methods to create galvanic isolation.


Derive and Plot a Low Pass Transfer Function on MATLAB

Derive and Plot a Low Pass Transfer Function on MATLAB

Learn all about Akerberg-Mossberg Filters and how to plot the frequency response using MATLAB.


Learn About Fourier Coefficients

Learn About Fourier Coefficients

Learn about Fourier series coefficients.