ATE332588T1 - Delta-sigma-verstärker mitausgangsstufenversorgungsspannungsvariations omensation und verfahren und digitale verstärkersysteme damit - Google Patents

Delta-sigma-verstärker mitausgangsstufenversorgungsspannungsvariations omensation und verfahren und digitale verstärkersysteme damit

Info

Publication number
ATE332588T1
ATE332588T1 AT03814698T AT03814698T ATE332588T1 AT E332588 T1 ATE332588 T1 AT E332588T1 AT 03814698 T AT03814698 T AT 03814698T AT 03814698 T AT03814698 T AT 03814698T AT E332588 T1 ATE332588 T1 AT E332588T1
Authority
AT
Austria
Prior art keywords
delta
amplifier
omensation
methods
supply voltage
Prior art date
Application number
AT03814698T
Other languages
English (en)
Inventor
Jack Andersen
John Laurence Melanson
Original Assignee
Cirrus Logic Inc
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 Cirrus Logic Inc filed Critical Cirrus Logic Inc
Application granted granted Critical
Publication of ATE332588T1 publication Critical patent/ATE332588T1/de

Links

Classifications

    • 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
    • H03F3/2175—Class D power amplifiers; Switching amplifiers using analogue-digital or digital-analogue conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/331—Sigma delta modulation being used in an amplifying circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
AT03814698T 2002-12-26 2003-12-10 Delta-sigma-verstärker mitausgangsstufenversorgungsspannungsvariations omensation und verfahren und digitale verstärkersysteme damit ATE332588T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/329,852 US6741123B1 (en) 2002-12-26 2002-12-26 Delta-sigma amplifiers with output stage supply voltage variation compensation and methods and digital amplifier systems using the same

Publications (1)

Publication Number Publication Date
ATE332588T1 true ATE332588T1 (de) 2006-07-15

Family

ID=32312330

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03814698T ATE332588T1 (de) 2002-12-26 2003-12-10 Delta-sigma-verstärker mitausgangsstufenversorgungsspannungsvariations omensation und verfahren und digitale verstärkersysteme damit

Country Status (8)

Country Link
US (2) US6741123B1 (de)
EP (1) EP1579570B1 (de)
JP (1) JP4157098B2 (de)
AT (1) ATE332588T1 (de)
AU (1) AU2003296449A1 (de)
DE (1) DE60306685T2 (de)
DK (1) DK1579570T3 (de)
WO (1) WO2004062089A2 (de)

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US7852017B1 (en) 2007-03-12 2010-12-14 Cirrus Logic, Inc. Ballast for light emitting diode light sources
US7696913B2 (en) * 2007-05-02 2010-04-13 Cirrus Logic, Inc. Signal processing system using delta-sigma modulation having an internal stabilizer path with direct output-to-integrator connection
US7554473B2 (en) * 2007-05-02 2009-06-30 Cirrus Logic, Inc. Control system using a nonlinear delta-sigma modulator with nonlinear process modeling
US8102127B2 (en) 2007-06-24 2012-01-24 Cirrus Logic, Inc. Hybrid gas discharge lamp-LED lighting system
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US7804697B2 (en) * 2007-12-11 2010-09-28 Cirrus Logic, Inc. History-independent noise-immune modulated transformer-coupled gate control signaling method and apparatus
US8022683B2 (en) * 2008-01-30 2011-09-20 Cirrus Logic, Inc. Powering a power supply integrated circuit with sense current
US8576589B2 (en) * 2008-01-30 2013-11-05 Cirrus Logic, Inc. Switch state controller with a sense current generated operating voltage
US8008898B2 (en) * 2008-01-30 2011-08-30 Cirrus Logic, Inc. Switching regulator with boosted auxiliary winding supply
US7755525B2 (en) * 2008-01-30 2010-07-13 Cirrus Logic, Inc. Delta sigma modulator with unavailable output values
US7759881B1 (en) 2008-03-31 2010-07-20 Cirrus Logic, Inc. LED lighting system with a multiple mode current control dimming strategy
US8008902B2 (en) * 2008-06-25 2011-08-30 Cirrus Logic, Inc. Hysteretic buck converter having dynamic thresholds
US8847719B2 (en) * 2008-07-25 2014-09-30 Cirrus Logic, Inc. Transformer with split primary winding
US8344707B2 (en) * 2008-07-25 2013-01-01 Cirrus Logic, Inc. Current sensing in a switching power converter
US8212491B2 (en) * 2008-07-25 2012-07-03 Cirrus Logic, Inc. Switching power converter control with triac-based leading edge dimmer compatibility
US8487546B2 (en) * 2008-08-29 2013-07-16 Cirrus Logic, Inc. LED lighting system with accurate current control
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US8362707B2 (en) * 2008-12-12 2013-01-29 Cirrus Logic, Inc. Light emitting diode based lighting system with time division ambient light feedback response
US8299722B2 (en) 2008-12-12 2012-10-30 Cirrus Logic, Inc. Time division light output sensing and brightness adjustment for different spectra of light emitting diodes
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EP4064558A1 (de) 2016-10-31 2022-09-28 Oticon A/s Hörgerät mit einem verstärkersystem zur minimierung der variation eines akustischen signals, das durch die variation der leistung eines verstärkers verursacht wird
EP3542461B1 (de) 2016-11-21 2024-07-31 Mixed-Signal Devices Inc. Hocheffiziente leistungsverstärkerarchitekturen für hf-anwendungen
US10164576B2 (en) * 2017-04-28 2018-12-25 Cirrus Logic, Inc. Amplifier offset cancellation using amplifier supply voltage
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Also Published As

Publication number Publication date
EP1579570A4 (de) 2006-01-11
AU2003296449A8 (en) 2004-07-29
EP1579570B1 (de) 2006-07-05
JP2006512851A (ja) 2006-04-13
DE60306685D1 (de) 2006-08-17
EP1579570A2 (de) 2005-09-28
JP4157098B2 (ja) 2008-09-24
DK1579570T3 (da) 2006-10-30
US6943620B2 (en) 2005-09-13
DE60306685T2 (de) 2007-06-28
US20040228416A1 (en) 2004-11-18
US6741123B1 (en) 2004-05-25
WO2004062089A3 (en) 2004-09-23
AU2003296449A1 (en) 2004-07-29
WO2004062089A2 (en) 2004-07-22

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