Latest Oscillators Technical Articles

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.

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.

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.

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.

All of our previous circuits dealt with opamps using resistors in the feedback loop. What happens when we start swapping…

All of our previous circuits dealt with opamps using resistors in the feedback loop. What happens when we start swapping out resistors for other passive components?

Part 4 in the “How to Make an Ambient Light Monitor” series

Part 4 in the “How to Make an Ambient Light Monitor” series

Part 2 in the "How to Make an Ambient Light Monitor" Series. Our smart ambient light monitor will need to digitize and…

Part 2 in the "How to Make an Ambient Light Monitor" Series. Our smart ambient light monitor will need to digitize and analyze signals from an optical detector, so it is time to explore the EFM8’s integrated analog-to-digital conversion functionality.

LTSpice possesses several features that can be used to test your design beyond simple transient analysis and AC sweeps.…

LTSpice possesses several features that can be used to test your design beyond simple transient analysis and AC sweeps. This article will go over a few advanced functions.

Introduction to the Arduino SPI Library with example sketch for the LTC1286 12 Bit ADC and the DAC714 16 bit DAC.

Introduction to the Arduino SPI Library with example sketch for the LTC1286 12 Bit ADC and the DAC714 16 bit DAC.

Build an analog booby-trap alarm system with an LM386 amplifier and an NPN transistor. This alarm system is activated by…

Build an analog booby-trap alarm system with an LM386 amplifier and an NPN transistor. This alarm system is activated by a trip sensor that sets off a screeching noise, alerting everyone and scaring off thieves.

The effect of noise and Power Supply Rejection Ratio (PSRR) in Low-dropout (LDO) regulators.

The effect of noise and Power Supply Rejection Ratio (PSRR) in Low-dropout (LDO) regulators.

The core concept of power processing can be explained together with several significant applications of power…

The core concept of power processing can be explained together with several significant applications of power electronics. Power electronics is the technology of processing and controlling the flow of electric power by modifying and supplying the voltage and current in a form that is best suitable to the customer at the load end.

The basic converters complete equivalent circuits can be studied here which include the basic AC modeling approach and…

The basic converters complete equivalent circuits can be studied here which include the basic AC modeling approach and the results for several converters. A simple circuit diagram is used for high-frequency converters. We will construct the non-linear model and convert it into a linear circuit that describes the small-signal performance of a circuit.