DK2469705T3 - Generering af en forsyningsspænding fra udgangssignalet fra en klasse-D forstærker - Google Patents

Generering af en forsyningsspænding fra udgangssignalet fra en klasse-D forstærker Download PDF

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Publication number
DK2469705T3
DK2469705T3 DK11194282.7T DK11194282T DK2469705T3 DK 2469705 T3 DK2469705 T3 DK 2469705T3 DK 11194282 T DK11194282 T DK 11194282T DK 2469705 T3 DK2469705 T3 DK 2469705T3
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DK
Denmark
Prior art keywords
voltage
output voltage
hearing aid
power supply
audio
Prior art date
Application number
DK11194282.7T
Other languages
English (en)
Inventor
Halteren Aart Zeger Van
Original Assignee
Sonion Nederland Bv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sonion Nederland Bv filed Critical Sonion Nederland Bv
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Publication of DK2469705T3 publication Critical patent/DK2469705T3/da

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/03—Indexing scheme relating to amplifiers the amplifier being designed for audio applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/33—Aspects relating to adaptation of the battery voltage, e.g. its regulation, increase or decrease

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Claims (10)

1. Høreapparat omfattende - en lydgiver (2), som er indrettet til at generere et hørbart udgangssignal, - signalprocessorkredsløb, som funktionsmæssigt er forbundet med lydgiveren (2), idet signalprocessorkredsløbet omfatter audioforstærkende midler (1), som er indrettet til at generere en switched udgangsspænding til at drive høreapparatets lydgiver (2), og - en strømforsyningsenhed, som er indrettet til ud fra den switched udgangsspænding, som er genereret af de audioforstærkende midler, at generere en DC-udgangsspænding.
2. Høreapparat ifølge krav 1, hvori de audioforstærkende midler omfatter en klasse-D forstærker.
3. Høreapparat ifølge krav 1 eller 2, hvori strømforsyningsenheden omfatter ensrettermidler.
4. Høreapparat ifølge krav 3, hvori strømforsyningsenheden yderligere omfatter filtermidler, som er indrettet til at filtrere en ensrettet spænding.
5. Høreapparat ifølge et hvilket som helst af kravene 1-4, hvori strømforsyningsenheden yderligere omfatter en spændingsmultiplikator såsom et spændingsfordoblingskredsløb, hvor spændingsmultiplikatoren er indrettet til at multiplicere udgangsspændingen fra de audioforstærkende midler.
6. Høreapparat ifølge et hvilket som helst af de foregående krav, hvori DC-udgangsspændingen ligger inden for intervallet 2-10 V.
7. Høreapparat ifølge et hvilket som helst af de foregående krav, hvilket høreapparat yderligere omfatter en mikrofon (4), som funktionsmæssigt er forbundet med signalprocessorkredsløbet, og hvori DC-udgangsspændingen forsyner mikrofonen.
8. Fremgangsmåde til generering af en strømforsyningsspænding i et høreapparat, hvilket høreapparat omfatter et signalprocessorkredsløb med audioforstærkende midler (1), idet de audioforstærkende midler er indrettet til at generere en udgangsspænding til at drive i det mindste én af høreapparatets lydgivere (2), hvilken fremgangsmåde omfatter det trin at generere en DC-udgangsspænding ud fra udgangsspændingen af forstærkermidlerne (1) ved ensretning og filtrering af udgangsspændingen.
9. Fremgangsmåde ifølge krav 8, hvori det trin at generere en DC-udgangsspænding yderligere omfatter forstærkning af den udgangsspænding, som er genereret af de audioforstærkende midler.
10. Fremgangsmåde ifølge krav 8 eller 9, hvori DC-udgangsspændingen ligger inden for intervallet 2-10 V.
DK11194282.7T 2010-12-21 2011-12-19 Generering af en forsyningsspænding fra udgangssignalet fra en klasse-D forstærker DK2469705T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201061425406P 2010-12-21 2010-12-21

Publications (1)

Publication Number Publication Date
DK2469705T3 true DK2469705T3 (da) 2016-03-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DK11194282.7T DK2469705T3 (da) 2010-12-21 2011-12-19 Generering af en forsyningsspænding fra udgangssignalet fra en klasse-D forstærker

Country Status (3)

Country Link
US (1) US8965018B2 (da)
EP (1) EP2469705B1 (da)
DK (1) DK2469705T3 (da)

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Also Published As

Publication number Publication date
US8965018B2 (en) 2015-02-24
US20120155683A1 (en) 2012-06-21
EP2469705B1 (en) 2015-12-02
EP2469705A1 (en) 2012-06-27

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