Attenuator (Electronics)
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Details
An attenuator is an electronic device that reduces the amplitude or power of a signal without appreciably distorting its waveform.An attenuator is effectively the opposite of an amplifier, though the two work by different methods. While an amplifier provides gain, an attenuator provides loss, or gain less than 1.Attenuators are usually passive devices made from simple voltage divider networks. Switching between different resistances forms adjustable stepped attenuators and continuously adjustable ones using potentiometers. For higher frequencies precisely matched low VSWR resistance networks are used.Fixed attenuators in circuits are used to lower voltage, dissipate power, and to improve impedance matching. In measuring signals, attenuator pads or adaptors are used to lower the amplitude of the signal a known amount to enable measurements, or to protect the measuring device from signal levels that might damage it. Attenuators are also used to 'match' impedances by lowering apparent SWR.
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GarantieWeitere Informationen
- Allgemeine Informationen
- GTIN 09786130695675
- Anzahl Seiten 72
- Genre Wärme- und Energietechnik
- Editor Frederic P. Miller, Agnes F. Vandome, John McBrewster
- Herausgeber Alphascript Publishing
- Gewicht 124g
- Größe H220mm x B150mm x T4mm
- Jahr 2010
- EAN 9786130695675
- Format Fachbuch
- ISBN 978-613-0-69567-5
- Titel Attenuator (Electronics)
- Untertitel Attenuator (electronics), Electronics, Amplitude, Electric power, Signal (electronics), Distortion, Waveform, Amplifier, Gain, Passivity (engineering), Voltage divider
- Sprache Englisch
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