Positive Feedback in Electronic Circuits
https://www.electronics-lab.com/article/the-positive-feedback-in-electronics/
Introduction While negative feedback controls and corrects the behavior of a system, positive feedback encourages and strengthens the behavior of the system. For this reason, it is also known as regenerative feedback. Positive feedback generally occurs when the fed-back signal is in phase with the input signal, and it causes the magnitude of the input signal […]
Sine Wave-Based Inverter with SLG47004 AnalogPAK
https://www.electronics-lab.com/sine-wave-based-inverter-with-slg47004-analogpak/
Author: Pablo E. Leibovich and Alberto I. Leibovich Introduction Climate change and its consequences have increased concern about how to replace fossil fuels with cleaner and more sustainable alternatives for electricity generation. Renewable energy sources, such as solar, wind, hydropower, biomass, and geothermal energy, have emerged as real solutions with huge development. They refer not […]
Piezo Element Amplifier for Guitar and Violin
https://www.electronics-lab.com/piezo-element-amplifier-for-guitar-and-violin/
The board presented here is a preamplifier for contact microphones that are used for amplifying the sound of musical instruments which do not contain electrical pickups, such as guitar and violins. Most contact microphones use a piezo element to convert vibration in the body of the musical instrument to a voltage. The circuit is built […]
TLV916x RRIO Low-Noise Op Amps
https://www.electronics-lab.com/tlv916x-rrio-low-noise-op-amps/
Texas Instruments’ 16 V, 11 MHz op amps are ideal for industrial applications offering high performance and flexibility Texas Instruments’ TLV916x (TLV9161, TLV9162, and TLV9164) is a family of 16 V, general-purpose op amps that offer exceptional DC precision and AC performance including rail-to-rail input/output (RRIO), low offset, low-offset drift, and low noise. Features including differential and […]
Audio Line Receiver using INA134
https://www.electronics-lab.com/audio-line-receiver-using-ina134/
The project described here is a differential line receiver consisting of high-performance INA134 OPAMPs with on-chip precision resistors. The project is fully specified for high-performance audio applications and has excellent AC specifications, including low distortion (0.0005% at 1kHz) and high slew rate (14V/µs), assuring good dynamic response. In addition, wide output voltage swing and high […]
SPI Programmable-Gain Amplifier with Input VOS Trim and Output OPAMP
https://www.electronics-lab.com/spi-programmable-gain-amplifier-with-input-vos-trim-and-output-opamp/
The project presented here is an SPI programable Gain Amplifier using MAX9939. The MAX9939 is a general-purpose, differential-input programmable-gain amplifier (PGA) that is ideal for conditioning a variety of wide dynamic range signals such as those found in motor current-sense, medical instrumentation, and sonar data acquisition applications. It features SPI-programmable differential gains from 0.2V/V to […]
Full Wave Rectifier Using Single Supply OPAMP
https://www.electronics-lab.com/full-wave-rectifier-using-single-supply-opamp/
This is a Full wave rectifier project built using MAX44267 dual OPAMP which provides true zero output with a single supply. The circuit converts Bipolar/AC input into full-wave output. CN1 is provided for sinewave input, CN2 helps to connect the power and output. Operating supply 15V DC, D1 power LED. The MAX44267 precision, low-noise, low-drift […]
Universal OPAMP Board for SMD MSOP8 Package
https://www.electronics-lab.com/universal-opamp-board-for-smd-msop8-package/
This is easy to build and very useful project for hobbyists and students to learn and create OPAMP-based projects. The project accommodates a single OPAMP in the MSOP8 package. The project provides the user with multiple choices and extensive flexibility for different applications circuits and configurations. It provides the user with many combinations for various […]
Bidirectional Speed Control for DC Motors
https://www.electronics-lab.com/bidirectional-speed-control-for-dc-motors/
This is a very simple bidirectional speed control of a small DC brushed motor. The project is built using power OPAMP TCA0372 which can drive a load up to 1A. Connecting a small DC motor and trimmer pot will control the motor forward/reverse operation along with speed control. A Trimmer potentiometer is provided to set […]
TSV791 Rail-to-Rail 5 V Op Amp
https://www.electronics-lab.com/tsv791-rail-to-rail-5-v-op-amp/
STMicroelectronics’ single 50 MHz bandwidth unity-gain-stable amp features rail-to-rail input stage STMicroelectronics’ TSV791 is a single 50 MHz bandwidth unity gain stable amplifier. The rail-to-rail input stage and the slew rate of 30 V/μs make the TSV791 ideal for low-side current measurement. The excellent accuracy provided by a maximum input voltage of 200 μV allows […]