Content for LM358

LM358

Utilizing the circuit designs perfected for quad op-amps, this dual op-amp features low power drain, a common mode input voltage range extending to ground/VEE, and single supply or split supply operation. The LM358 series is equivalent to one-half of an LM324. These amplifiers have several distinct advantages over standard operational amplifier types in single supply applications. They can operate at supply voltages as low as 3.0 V or as high as 32 V, with quiescent currents about one-fifth of those associated with the MC1741 (on a per amplifier basis). The common mode input range includes the negative supply, thereby eliminating the necessity for external biasing components in many applications. The output voltage range also includes the negative power supply voltage.

Signal Conditioner for Sensorless BLDC Operations

“This is a back EMF signal conditioning circuit that can be used to develop high-voltage sensorless motor drivers. When a sensorless algorithm is used to control the BLDC motor speed, the Back EMF (BEMF) signals are used. Based on zero …

STM32 Soldering and Rework Station with TFT Display

“Soldering station supported Hakko T12 tips and rework Hot Air Gun 858D using color TFT ili9341 display. This is a third release of combined soldering iron controller for Hakko T12 tips and 858D rework station based on STM32 micro controller …

Battery Soldering Iron

“Finally I’ve made a working battery based portable soldering iron. This one can melt solder in under 10 seconds, which is amazing. The soldering iron weighs just above 100 grams, is comfortable to use, it can reach more than …

Multiple Feedback Bandpass Filter for Woofer

“Band Pass filter is one which can pass only a specified band of frequencies. For example a band pass filter for woofers have the lower cutoff frequency as 200Hz and upper cutoff frequency as 2KHz, that is the mid range …

Proximity Sensor

“An analogue proximity circuit built with active and passive components Hey there, thanks for coming around, I would love to walk you through on how to create a fully functional proximity sensor and understanding the logic behind it…They are …

Microphone Preamplifier – Sound Sensor

“This is an easy to construct dual-stage microphone pre-amplifier. The project can be used as a sound sensor or microphone pre-amplifier. The 1st op-amp pre-amplify the very low-level signal coming from the condenser microphone and 2nd op-amp provides more boost …

LED Running Lights

“In todays article, I will show you running lights based on three popular microcircuits: an operational amplifier microcircuit LM358, a timer microcircuit NE555, and decimal counter microcircuit CD4017. The running lights schematic diagram and printed circuit board (PCB) were developed …

OP Amp IC Tester

“There is nothing more satisfying then building a circuit and having it work as you intended and nothing so infuriating at it failing and not knowing why! There’s usually a few main culprits that can cause a circuit to …

TL494 Working With a Crystal || Generate Perfect 50Hz Modified Square Waves

“Hello everyone! Thank you for stopping by this instructable. This is a very exciting project where I have made this TL494 based modified square wave module that is controlled by a crystal oscillator for having super accurate output frequency of …

Electret Mic Preamp

“In this project guide, we show you how to use your Desktop PCB Milling Machine to make an electret mic preamp. This circuit, based on an LM358 operational amplifier, is essential for a number of audio-reactive projects. Lets dive in …