All About Circuits

Latest Oscillators Articles and Videos

Categories

Op-Amps as Low-Pass and High-Pass Active Filters

Op-Amps as Low-Pass and High-Pass Active Filters

In this video we will explore a particularly important application of op-amps, namely, the design of high-performance filters that do not require inductors.


Review of the Op-Amp Integrator

Review of the Op-Amp Integrator

In this video, we will learn about the op-amp integrator, which performs mathematical integration and requires nothing more than an op-amp and a few passive components.


Technology Enablers for Faster, Safer, High-Efficiency EV chargers

Technology Enablers for Faster, Safer, High-Efficiency EV chargers

This article looks at semiconductor technologies that are driving EV chargers, including high-voltage semiconductor switches, power converters, and multi-level complex power stages.


Active Rectifier Circuits: Convert Alternating Current to Direct Current

Active Rectifier Circuits: Convert Alternating Current to Direct Current

In this video we will discuss the active rectifier, which is an op-amp-based circuit that uses a normal diode in conjunction with negative feedback to rectify signals without generating a significant amplitude difference between the input voltage and the rectified output voltage.


How to Reduce Noise in Low-Voltage Amplifier Designs

How to Reduce Noise in Low-Voltage Amplifier Designs

This article compares the noise performance of two different amplifiers and optimizes noise performance through the use of passive filtering.


Transimpedance Amplifier: Op-Amp-Based Current-to-Voltage Signal Converter

Transimpedance Amplifier: Op-Amp-Based Current-to-Voltage Signal Converter

In this video we’ll study an op-amp-based current-to-voltage converter. This widely used circuit is a simple and effective means of converting the output of a current source into a typical voltage signal.


Applications of the Op-Amp: Voltage Follower Circuit

Applications of the Op-Amp: Voltage Follower Circuit

In this video, we’ll be exploring the voltage follower, which is a good example of an op-amp circuit that is simple yet very useful.


Common Operational Amplifier (Op-Amp) Applications

Common Operational Amplifier (Op-Amp) Applications

In this video, we’ll look at some circuits that represent common op-amp applications. We’ll start with the voltage follower, then we’ll move on to an inverting amplifier, an active filter, and a current-to-voltage converter.


Basic Amplifier Configurations: the Inverting Amplifier

Basic Amplifier Configurations: the Inverting Amplifier

This video tutorial examines a fundamental op-amp-based amplifier configuration that not only applies gain but also changes the polarity of the input signal.


Frequency Response of Op-Amp Circuits

Frequency Response of Op-Amp Circuits

This video explores the frequency response of a realistic op-amp and discusses how this frequency response influences the operation of op-amp-based amplifier circuits.


Precisely Capture Servo Motor Position Using a High-Speed Simultaneous Sampling ADC

Precisely Capture Servo Motor Position Using a High-Speed Simultaneous Sampling ADC

Autonomous drones and robots utilize small motors. These fast-spinning mini motors require miniature encoders and IC package sizes. This article shows how an optical sinusoidal encoder provides a higher resolution and increased speeds with a 2x3 mm dual simultaneous-sampling SAR-ADC.


Architecture and Design Techniques of Op-Amps

Architecture and Design Techniques of Op-Amps

In this video we will examine the internal circuitry of an operational amplifier. A thorough analysis of any professional-quality op-amp would be far too complicated for an introductory video tutorial, but if we focus on the overall architecture and a few specific design techniques, we can learn quite a bit about op-amp functionality without getting lost in the details.


Ideal Op-Amp Characteristics

Ideal Op-Amp Characteristics

This video explores the characteristics of an idealized op-amp—that is, an op-amp that does not reflect true device operation but does, nonetheless, allow us to design functional circuits.


Wi-Fi Is a Power Guzzler. New Multi-Protocol Modules May Change the Game of Battery-Based IoT

Wi-Fi Is a Power Guzzler. New Multi-Protocol Modules May Change the Game of Battery-Based IoT

Wi-Fi's high power consumption represents a serious challenge to battery-powered IoT products. But this may no longer be a problem with the digitally-dominant advanced radio architecture of two new modules from Innophase.


News Jun 09, 2020 by Dr. Steve Arar
Passive, Active, and Electromechanical Components

Passive, Active, and Electromechanical Components

This video tutorial covers some basic information related to three major categories of electrical and electronic components.


Historical Engineers: Harry Nyquist, a Trail Blazer in Digital Communications

Historical Engineers: Harry Nyquist, a Trail Blazer in Digital Communications

Nyquist’s contributions were the intellectual building blocks essential to the birth of modern information theory


News Apr 06, 2020 by Gary Elinoff
How Do You Design an LC Low-Pass Filter for a Class D Amp?

How Do You Design an LC Low-Pass Filter for a Class D Amp?

What's the role of low-pass filters in class D amplification? We'll use ST's new class D amp to discuss this question.


News Mar 09, 2020 by Robert Keim
Understanding Operational Amplifier Slew Rate

Understanding Operational Amplifier Slew Rate

This article explores an important limitation that can cause a real-life op-amp to deviate from the behavior of its idealized counterpart.


Improving Phase Accuracy Using a Composite Op-Amp

Improving Phase Accuracy Using a Composite Op-Amp

This is the final part of a six-article series on composite amplifiers. In this last part, we'll show how to improve phase accuracy.


Achieving High DC Precision Using Composite Op-Amps

Achieving High DC Precision Using Composite Op-Amps

In Part 5 of this series on composite amplifiers, we'll discuss how to achieve higher DC precision.