dc.identifier.uri |
http://dx.doi.org/10.15488/1510 |
|
dc.identifier.uri |
http://www.repo.uni-hannover.de/handle/123456789/1535 |
|
dc.contributor.author |
Schnick, O.
|
|
dc.contributor.author |
Mathis, Wolfgang
|
|
dc.date.accessioned |
2017-05-11T06:36:14Z |
|
dc.date.available |
2017-05-11T06:36:14Z |
|
dc.date.issued |
2007 |
|
dc.identifier.citation |
Schnick, O.; Mathis, W.: Realisierung eines Verzerrungsarmen Open-Loop Klasse-D Audio-Verstärkers mit SB-ZePoC [Realization of a low switching Open Loop Class D amplifiers using SB-ZePoC]. In: Advances in Radio Science 5 (2007), S. 225-230. DOI: https://doi.org/10.5194/ars-5-225-2007 |
|
dc.description.abstract |
Class-D amplifiers are suiteble for amplification of audio signals. One argument is their high efficiency of 90% and more. Today most of the audio signals are stored or transmitted in digital form. A digitally controlled Class-D amplifier can be directly driven with coded (modulated) data. No separate D/A conversion is needed. Classical modulation schemes like Pulse-Width-Modulation (PWM) cause aliasing. So a very high switching rate is required to minimize the aliasing component within the signal band. This paper shows a first implementation of the new SB-ZePoC modulation scheme (Zero Position Coding with Separated Baseband), which allows the generation of a binary signal with separated baseband. Therefore Class-D amplifiers using SB-ZePoC can be run with very low switching rates. Some benefits and problems in the design process because of low switching rates will be discussed. Measurements of a real-time implementation will be presented. |
eng |
dc.language.iso |
ger |
|
dc.publisher |
Göttingen : Copernicus GmbH |
|
dc.relation.ispartofseries |
Advances in Radio Science 5 (2007) |
|
dc.rights |
CC BY-NC-SA 2.5 Unported |
|
dc.rights.uri |
https://creativecommons.org/licenses/by-nc-sa/2.5/ |
|
dc.subject |
Class D amplifier |
eng |
dc.subject |
Digitally controlled |
eng |
dc.subject |
Directly-driven |
eng |
dc.subject |
Measurements of |
eng |
dc.subject |
Modulation schemes |
eng |
dc.subject |
Pulse-width-modulation (PWM) |
eng |
dc.subject |
Real-time implementations |
eng |
dc.subject |
Switching rates |
eng |
dc.subject |
Audio frequency amplifiers |
eng |
dc.subject |
Audio systems |
eng |
dc.subject |
Modulation |
eng |
dc.subject |
Real time control |
eng |
dc.subject |
Separation |
eng |
dc.subject |
Switching |
eng |
dc.subject.ddc |
621,3 | Elektrotechnik, Elektronik
|
ger |
dc.title |
Realisierung eines Verzerrungsarmen Open-Loop Klasse-D Audio-Verstärkers mit SB-ZePoC [Realization of a low switching Open Loop Class D amplifiers using SB-ZePoC] |
ger |
dc.type |
Article |
|
dc.type |
Text |
|
dc.relation.issn |
1684-9965 |
|
dc.relation.doi |
https://doi.org/10.5194/ars-5-225-2007 |
|
dc.bibliographicCitation.volume |
5 |
|
dc.bibliographicCitation.firstPage |
225 |
|
dc.bibliographicCitation.lastPage |
230 |
|
dc.description.version |
publishedVersion |
|
tib.accessRights |
frei zug�nglich |
|