This is the final part in a series of articles on building a robot that can follow lines or walls and avoid obstacles!
This is the final part in a series of articles on building a robot that can follow lines or walls and avoid obstacles!
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.
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.
The buck converter is a ubiquitous DC-DC converter that efficiently converts a high voltage to a low voltage efficiently.…
The buck converter is a ubiquitous DC-DC converter that efficiently converts a high voltage to a low voltage efficiently. Efficient power conversion extends battery life, reduces heat, and allows for smaller gadgets to be built. The buck converter can be used in lots of cool applications.
Here are some great power conversion topologies that can be used as alternatives to the boost converter; they are much…
Here are some great power conversion topologies that can be used as alternatives to the boost converter; they are much less vulnerable to short circuit load conditions.
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.
How an op amp works with LTspice simulation. We left off last time finishing up how the input stage of an op-amp works.…
How an op amp works with LTspice simulation. We left off last time finishing up how the input stage of an op-amp works. The next important stage is made up by transistors Q3, Q4, Q5, Q6, and Q7.
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.
The boost converter is a DC-DC converter used to created an output voltage that is higher than the input voltage. Boost…
The boost converter is a DC-DC converter used to created an output voltage that is higher than the input voltage. Boost converters are also used to drive LEDs placed in series in products like LED flashlights. The boost converter suffers from vulnerability to a short circuit load. Learn how to protect them from shorts!
Direct Digital Synthesis is used to generate precise analog waveforms that can quickly change frequencies. It's used in…
Direct Digital Synthesis is used to generate precise analog waveforms that can quickly change frequencies. It's used in test equipment, spread spectrum techniques and to enable frequency sweeps.
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 the Analog to Digital Converter (ADC) feature of LaunchPad to build a laser tripwire alarm. This is a great way to…
Use the Analog to Digital Converter (ADC) feature of LaunchPad to build a laser tripwire alarm. This is a great way to familiarize yourself with LaunchPad while simultaneously making something cool.
An inside look at how the 741 operational amplifier operates with LTspice simulation. We'll go over internal structure…
An inside look at how the 741 operational amplifier operates with LTspice simulation. We'll go over internal structure and differential amplifiers and continue with everything you've ever needed to know about this operational amplifier.
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.
An overview of how the concepts of electron flow and the role of individual circuit components can be related to the flow…
An overview of how the concepts of electron flow and the role of individual circuit components can be related to the flow of fluid in pipe networks. The analogy between hydraulics and electricity is a useful tool for teaching and for those who are struggling to understand how circuits work.
Having introduced the general negative feedback structure, we will now demonstrate that negative feedback has a…
Having introduced the general negative feedback structure, we will now demonstrate that negative feedback has a beneficial effect on two important characteristics of amplifier circuits.
Learn how to put together your own toaster oven controller with a handful of inexpensive, through-hole parts. The…
Learn how to put together your own toaster oven controller with a handful of inexpensive, through-hole parts. The emphasis is on safety, low price, and minimal modification of the toaster oven.
This article, the first in a series, will introduce you to the fundamental concepts required for understanding and…
This article, the first in a series, will introduce you to the fundamental concepts required for understanding and analyzing negative feedback amplifiers.
What linear voltage regulator circuits lack in efficiency, they make up in simplicity and low noise. Here's a scheme for…
What linear voltage regulator circuits lack in efficiency, they make up in simplicity and low noise. Here's a scheme for 9 voltages from 2.5V to 15V on the same PCB design.
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