Precision op amp clamp circuit

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Precision op amp clamp circuit

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If one wants to avoid saturation of the OP- amp one could add a buffer amplifier series resistor and diode in the freeback of the main OP-amp. You cannot overwrite this file. The circuit also does not solve the saturation problem.

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Explore the intriguing world of voltage clamp circuits, their principle, components, and broad applications in electronics and neuroscience. The concept of voltage clamping is integral to the field of electronics and neuroscience. This article aims to provide a detailed and intuitive understanding of voltage clamp circuits, their workings, and their applications. Before we delve into the specifics, it is essential to grasp the fundamental concept. This is achieved by an external electronic circuit known as a voltage-clamp circuit. The core idea is to prevent the voltage across the device from going beyond a predetermined level, despite changes in the input voltage. The functionality of a voltage clamp circuit depends on its composition. Generally, it involves a feedback mechanism that enables the circuit to maintain the desired voltage level. This system dynamically regulates the current through the device to offset any potential changes in the input voltage, thereby maintaining a constant voltage across it.

Precision op amp clamp circuit

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Quote from: exe on March 11, , am. SMF 2. A comparator controls a switch that either the passes the input or the clamp voltage to the output. Voltage regulator is the same "limiting" circuits as any clamp, only series instead of shunt. O'k, first circuits just shows line of thoughts, R3 should be replaced by zenner. You cannot overwrite this file. It the comparator would go mad without it surely? To solve both issue, use BJT as a switch element, basicaly common voltage regulator circuits. The function relies on the opamp going open loop. You're right, it doesn't work. I wonder if there is any way to provide this feedback to keep output within the linear region and not affect the input signal at the same time, or achieving this in some other way. EEVblog on Youtube. Toggle limited content width. Download as PDF Printable version.

An alternating current always changes its direction over time, but the direct current flows continuously in one direction.

Think of a high-impedance, low-voltage source of Vin with the op amp powered from its own power rails. Quote from: Kleinstein on March 14, , am. The circuit also does not solve the saturation problem. The circuit you showed, as far as I understand, does a different thing. I'm interested in improving the circuit shown in the original post in a way that it still clips the input signal at a precise level set by a voltage reference, but avoids driving the op amp into saturation. I wonder if there is any way to provide this feedback to keep output within the linear region and not affect the input signal at the same time, or achieving this in some other way. If so, how can it be modified to avoid saturation? Pages: [ 1 ] Go Up. Low leak diode would be necessary. Contents move to sidebar hide.