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Carlzon, Martin
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE).
Lidén, Andreas
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE).
2004 (Swedish)
Independent thesis Basic level (degree of Bachelor)
Student thesis
Abstract [sv]
Amplifiers are fed by direct current. To create the direct current from alternating current you use a power supply, composed by a transformer, rectifiers and capacitors. The output voltage from the power supply alternates because the amplifier uses up the energy stored in the capacitors, and the energy is only recharged on the peaks of the rectified sinewave. Each time the capacitors are recharged a large current goes through the power supply and creates a magnetic field that produce distortion in adjacent conductors. If you could minimize the alternating on the output voltage of the power supply the current peaks would decline. One way to do this is to change the form of the alternating current that goes in to the power supply, from a sinewave to a squarewave. Then the capacitors will be charged the entire period and no large current flows will be necessary to restore the spent energy.
Place, publisher, year, edition, pages
2004.
Keywords [sv]
SMPS, Audio, Förstärkare, Fullbrygga, Nätdel, Strömförsörjning
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URN:
urn:nbn:se:hh:diva-11802
Local ID: U10832
OAI: oai:DiVA.org:hh-11802
DiVA, id:
diva2:366940
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Technology
Note
Denna uppsats kan beställas från arkivet / This paper can be ordered from the archive. Kontakta / Contact: arkivet@hh.se
Available from:
2010-11-09
Created:
2010-11-09
Bibliographically approved
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modern-language-association-8th-edition
vancouver
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apa
ieee
modern-language-association-8th-edition
vancouver
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en-GB
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