An error amplifier is most commonly encountered in feedback unidirectional voltage control circuits, where the sampled output voltage of the circuit under control, is fed back and compared to a stable reference voltage. Any difference between the two generates a compensating error voltage which tends to move the output voltage towards the design specification.
An error amplifier is essentially what its name says, that is, it amplifies an error signal. This error is based on the difference between a reference signal and the input signal. It can also be treated as the difference between the two inputs. These are usually used in unison with feedback loops, owing to their self-correcting mechanism. They have an inverting and a non-inverting input pin set, which is what is responsible for the output to be the difference of the inputs.
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Transcription
Devices
- Discrete Transistors
- Operational amplifiers
Applications
- Regulated power supply.
- D.C Power Amplifiers
- Measurement Equipment
- Servomechanisms
See also
External links
- Error Amplifier Design and Application Archived 28 March 2018 at the Wayback Machine, alphascientific.com. Originally accessed 27 April 2009, now 404. Try https://web.archive.org/web/20081006222215/http://www.alphascientific.com/technotes/technote3.pdf
- Error amplifier as an element in a voltage regulator:
Stability analysis of low-dropout linear regulators with a PMOS pass element Archived 7 July 2011 at the Wayback Machine
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This page was last edited on 22 January 2022, at 00:24