Test-driven development (TDD) is an iterative process for writing software, where the unit tests are developed just before the implementation. TDD isn't used…
Test-driven development (TDD) is an iterative process for writing software, where the unit tests are developed just before the implementation. TDD isn't used widely in embedded software, but it's the best way to get started with unit testing.
This project explains how to isolate signals to eliminate ground loops in electronic systems.
This project explains how to isolate signals to eliminate ground loops in electronic systems.
In this article, we'll build a sound-activated switch that can be opened and closed with a double clap.
In this article, we'll build a sound-activated switch that can be opened and closed with a double clap.
The transient response of a negative-feedback amplifier can help us to understand the nature of stability and convey…
The transient response of a negative-feedback amplifier can help us to understand the nature of stability and convey useful information about the stability characteristics of a particular circuit.
A simple “break-the-feedback-loop” simulation technique makes for convenient stability analysis, especially with…
A simple “break-the-feedback-loop” simulation technique makes for convenient stability analysis, especially with complex circuits.
A introduction to adaptive echo cancellers using Matlab simulation.
A introduction to adaptive echo cancellers using Matlab simulation.
An introduction to the least mean squares algorithm and adaptive gain control through a simple example.
An introduction to the least mean squares algorithm and adaptive gain control through a simple example.
Here's a rundown of three boards best suited for beginning to intermediate FPGA designers. Some boards cost thousands of…
Here's a rundown of three boards best suited for beginning to intermediate FPGA designers. Some boards cost thousands of dollars, and it’s unrealistic to compare a board of that cost to a board that a hobbyist would likely choose, so this comparison looks at three popular boards in the sub-$90 price point.
This article will help you to understand why the frequency response of a feedback network can seriously, and sometimes…
This article will help you to understand why the frequency response of a feedback network can seriously, and sometimes unexpectedly, degrade stability.
This article will show you a handy alternative approach to assessing stability via open-loop gain and the feedback factor.
This article will show you a handy alternative approach to assessing stability via open-loop gain and the feedback factor.
How to use frequency-domain simulations to analyze loop gain and evaluate the stability of your amplifier circuit. We…
How to use frequency-domain simulations to analyze loop gain and evaluate the stability of your amplifier circuit. We need a way to determine whether a circuit is sufficiently stable—in other words, stable enough to ensure that the circuit will perform properly despite part-to-part variations and environmental or operational conditions that affect the characteristics of the open-loop gain or the feedback network. There is where gain margin and phase margin come into play.
Resolution and sampling rate are two important factors to consider when selecting an analog-to-digital converter (ADC).…
Resolution and sampling rate are two important factors to consider when selecting an analog-to-digital converter (ADC). In order to understand these fully, concepts such as quantisation, and the Nyquist Criterion must be understood to a certain degree.
Why are negative-feedback amplifiers susceptible to oscillation? What is the fundamental criterion for stability? Let’s…
Why are negative-feedback amplifiers susceptible to oscillation? What is the fundamental criterion for stability? Let’s find out.
Use negative feedback to increase your amplifier’s signal-to-noise ratio, reduce its nonlinear distortion, and improve…
Use negative feedback to increase your amplifier’s signal-to-noise ratio, reduce its nonlinear distortion, and improve its input- and output-impedance characteristics.
This analog design allows your LEDs to respond to your music. Just plug your music source into this which sends a channel…
This analog design allows your LEDs to respond to your music. Just plug your music source into this which sends a channel to your sound system and some LEDs.
Use a laser and a photo resistor to build a laser based point-to-point communication system. The best part? It's under $10.
Use a laser and a photo resistor to build a laser based point-to-point communication system. The best part? It's under $10.
Part 3 in the “How to Make an EFM8-Based Sound Synthesizer” series.
Part 3 in the “How to Make an EFM8-Based Sound Synthesizer” series.
Part 2 in the “How to Make an EFM8-Based Sound Synthesizer” series.
Part 2 in the “How to Make an EFM8-Based Sound Synthesizer” series.
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