Error amplifier (electronics)

File:Error-amplifier inner.svg

Internal structure

File:Error-amplifier.svg

Application

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.

Devices

• Discrete Transistors
• Operational amplifiers
• Fairchild Error Amplifier Data

Applications

• Regulated power supply.
• D.C Power Amplifiers
• Measurement Equipment
• Servomechanisms

See also

• Differential amplifier

External links

• Error Amplifier Design and Application, alphascientific.com
• Error amplifier as an element in a voltage regulator:
  Stability analysis of low-dropout linear regulators with a PMOS pass element

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