The previous two articles focused on bipolar junction transistors. In this article, we’ll look at buffering with MOSFETs instead of BJTs.
The previous two articles focused on bipolar junction transistors. In this article, we’ll look at buffering with MOSFETs instead of BJTs.
In this article, we will look at two variations on the basic BJT current-buffering circuit.
In this article, we will look at two variations on the basic BJT current-buffering circuit.
Op-amps become even more versatile if you can use them in high-current applications. In this article, we will look at a…
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.
Invoke the power of the PID (proportional–integral–derivative controller)! The key components in this design are an…
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.
Ever wanted to find out more about Class D amplification? Here's a handy breakdown.
Ever wanted to find out more about Class D amplification? Here's a handy breakdown.
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.
The techniques discussed in previous articles can help us to understand and remedy stability problems observed in a…
The techniques discussed in previous articles can help us to understand and remedy stability problems observed in a common circuit used to amplify photodiode signals.
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.
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.
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.
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.
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.
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.
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