CN104272589B - 具有可调环路滤波器特性的d类音频放大器 - Google Patents

具有可调环路滤波器特性的d类音频放大器 Download PDF

Info

Publication number
CN104272589B
CN104272589B CN201380022679.8A CN201380022679A CN104272589B CN 104272589 B CN104272589 B CN 104272589B CN 201380022679 A CN201380022679 A CN 201380022679A CN 104272589 B CN104272589 B CN 104272589B
Authority
CN
China
Prior art keywords
signal
audio
amplifier according
frequency amplifier
level
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
CN201380022679.8A
Other languages
English (en)
Chinese (zh)
Other versions
CN104272589A (zh
Inventor
米克尔·霍耶尔比
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cirrus Logic International Semiconductor Ltd
Original Assignee
Merus ApS
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 Merus ApS filed Critical Merus ApS
Publication of CN104272589A publication Critical patent/CN104272589A/zh
Application granted granted Critical
Publication of CN104272589B publication Critical patent/CN104272589B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H02M7/4837—Flying capacitor converters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/351—Pulse width modulation being used in an amplifying circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
CN201380022679.8A 2012-04-30 2013-04-24 具有可调环路滤波器特性的d类音频放大器 Active CN104272589B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201261640565P 2012-04-30 2012-04-30
US61/640,565 2012-04-30
PCT/EP2013/058450 WO2013164229A1 (en) 2012-04-30 2013-04-24 Class d audio amplifier with adjustable loop filter characteristics

Publications (2)

Publication Number Publication Date
CN104272589A CN104272589A (zh) 2015-01-07
CN104272589B true CN104272589B (zh) 2017-10-24

Family

ID=48289098

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201380022679.8A Active CN104272589B (zh) 2012-04-30 2013-04-24 具有可调环路滤波器特性的d类音频放大器

Country Status (7)

Country Link
US (1) US9564862B2 (https=)
EP (1) EP2845314B1 (https=)
JP (1) JP6325526B2 (https=)
KR (1) KR102068105B1 (https=)
CN (1) CN104272589B (https=)
DK (1) DK2845314T3 (https=)
WO (1) WO2013164229A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106992756A (zh) * 2017-03-03 2017-07-28 广东欧珀移动通信有限公司 D类功率放大器和音频设备

Families Citing this family (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009049320A1 (en) 2007-10-12 2009-04-16 Earlens Corporation Multifunction system and method for integrated hearing and communiction with noise cancellation and feedback management
WO2009155358A1 (en) 2008-06-17 2009-12-23 Earlens Corporation Optical electro-mechanical hearing devices with separate power and signal components
DK3509324T3 (da) 2008-09-22 2023-10-02 Earlens Corp Balancerede armaturindretninger og fremgangsmåder til at høre
WO2012088187A2 (en) 2010-12-20 2012-06-28 SoundBeam LLC Anatomically customized ear canal hearing apparatus
US9653986B2 (en) 2013-03-15 2017-05-16 Maxim Integrated Products, Inc. Multi-level step-up converter topologies, control and soft start systems and methods
GB2557750B (en) * 2013-10-23 2018-08-22 Cirrus Logic Int Semiconductor Ltd Class-D Amplifier Circuits
US20150222230A1 (en) * 2014-02-03 2015-08-06 Auriga Measurement Systems, LLC Output power tuning using pulse position and pulse width control in a pulse position, pulse width modulation amplifier
US10034103B2 (en) 2014-03-18 2018-07-24 Earlens Corporation High fidelity and reduced feedback contact hearing apparatus and methods
WO2015152834A1 (en) * 2014-04-02 2015-10-08 Nanyang Technological University A dead time circuit for a switching circuit and a switching amplifier
EP3169396B1 (en) 2014-07-14 2021-04-21 Earlens Corporation Sliding bias and peak limiting for optical hearing devices
JP6510199B2 (ja) * 2014-08-19 2019-05-08 ローム株式会社 スイッチング回路、オーディオアンプ集積回路、電子機器、電気音響変換素子の駆動方法
US9263992B1 (en) 2014-09-15 2016-02-16 Apple Inc. Class D amplifier with variable switching frequency
US9924276B2 (en) 2014-11-26 2018-03-20 Earlens Corporation Adjustable venting for hearing instruments
US9806682B1 (en) * 2015-02-24 2017-10-31 Marvell International Ltd. Multilevel class-D amplifiers
EP3355801B1 (en) 2015-10-02 2021-05-19 Earlens Corporation Drug delivery customized ear canal apparatus
US9602317B1 (en) * 2015-10-12 2017-03-21 Qualcomm Incorporated Apparatus and method for combining currents from passive equalizer in sense amplifier
US11350226B2 (en) 2015-12-30 2022-05-31 Earlens Corporation Charging protocol for rechargeable hearing systems
US10306381B2 (en) 2015-12-30 2019-05-28 Earlens Corporation Charging protocol for rechargable hearing systems
US10616007B2 (en) * 2016-02-08 2020-04-07 Sony Corporation Transmission device and communication system
US10218312B2 (en) 2016-02-29 2019-02-26 Qualcomm Incorporated Dynamic volume management in audio amplifiers
US20170250654A1 (en) * 2016-02-29 2017-08-31 Qualcomm Incorporated Dynamic dead time management
US10256777B2 (en) 2016-02-29 2019-04-09 Qualcomm Incorporated Audio amplifiers
NL2016605B1 (en) * 2016-04-14 2017-11-02 Axign B V Digital audio converter and amplifier controller.
CN107306117B (zh) * 2016-04-22 2020-11-27 晶豪科技股份有限公司 四元/三元调制选择电路
US11004660B2 (en) 2018-11-30 2021-05-11 Eagle Harbor Technologies, Inc. Variable output impedance RF generator
US10804886B2 (en) * 2016-06-21 2020-10-13 Eagle Harbor Technologies, Inc. High voltage pre-pulsing
US11824454B2 (en) * 2016-06-21 2023-11-21 Eagle Harbor Technologies, Inc. Wafer biasing in a plasma chamber
EP3485560B1 (en) 2016-07-15 2022-05-04 Analog Devices International Unlimited Company Balancing techniques and circuits for charge pumps
US20180077504A1 (en) 2016-09-09 2018-03-15 Earlens Corporation Contact hearing systems, apparatus and methods
WO2018093733A1 (en) 2016-11-15 2018-05-24 Earlens Corporation Improved impression procedure
CN108566101B (zh) 2016-12-16 2020-09-22 台达电子企业管理（上海）有限公司 模块化电源系统
US10110181B2 (en) 2016-12-30 2018-10-23 Texas Instruments Incorporated Class-D amplifier with post filter feedback loop
NL2018617B1 (en) 2017-03-30 2018-10-10 Axign B V Intra ear canal hearing aid
CN109690441A (zh) * 2017-04-12 2019-04-26 三菱电机株式会社 同步控制系统及控制装置
EP3402070B1 (en) * 2017-05-11 2020-02-12 Infineon Technologies Austria AG Class d audio amplifier with adjustable gate drive
EP3425795B1 (en) * 2017-07-03 2021-09-01 Infineon Technologies Austria AG Class d audio amplifier with overload protection circuit
US10044323B1 (en) * 2017-07-17 2018-08-07 Cirrus Logic, Inc. Reducing audio artifacts in an amplifier with configurable final output stage
GB2565293A (en) * 2017-08-07 2019-02-13 Reid Acoustic Designs Ltd An error amplifier
CN119696527A (zh) * 2017-11-10 2025-03-25 思睿逻辑国际半导体有限公司 具有多个独立输出级的d类放大器
WO2019100246A1 (en) * 2017-11-22 2019-05-31 Texas Instruments Incorporated Class-d amplifier with duty cycle control
JP7547206B2 (ja) * 2017-12-07 2024-09-09 ピューリファイ・アーペーエス 制御ループ中に少なくとも２次フィルタを有する増幅器
JP7438125B2 (ja) * 2017-12-07 2024-02-26 ピューリファイ・アーペーエス 少なくとも３次の回路網を有する補償器を有する増幅器
US11405007B2 (en) 2017-12-07 2022-08-02 Purifi Aps Amplifier circuit
US11223898B2 (en) * 2018-02-05 2022-01-11 Radio Sound, Inc. Audio system including speakers with integrated amplifier and method of detecting speakers
US11063565B2 (en) * 2018-02-23 2021-07-13 Qsc, Llc Audio amplifier assemblies, processes, and methods
WO2019173470A1 (en) 2018-03-07 2019-09-12 Earlens Corporation Contact hearing device and retention structure materials
WO2019199680A1 (en) 2018-04-09 2019-10-17 Earlens Corporation Dynamic filter
US10587232B2 (en) * 2018-05-17 2020-03-10 Cirrus Logic, Inc. Class D amplifiers
EP3831095A4 (en) 2018-07-31 2022-06-08 Earlens Corporation NEAR FIELD INDUCTIVE COUPLING IN A CONTACT HEARING SYSTEM
CN109217827B (zh) * 2018-08-31 2022-07-01 南京矽力微电子技术有限公司 D类功率放大器及其补偿方法和数字信号处理装置
US10804813B2 (en) * 2018-11-14 2020-10-13 Ford Global Technologies, Llc Power inverter for reducing total harmonic distortion via duty cycle control
US12456604B2 (en) 2019-12-24 2025-10-28 Eagle Harbor Technologies, Inc. Nanosecond pulser RF isolation for plasma systems
US10763799B2 (en) * 2018-12-12 2020-09-01 Infineon Technologies Austria Ag Flying capacitor voltage control in an amplifier
US11309839B2 (en) * 2019-05-06 2022-04-19 Mediatek Inc. High signal-to-noise ratio amplifier with multiple output modes
US11496096B2 (en) 2019-05-29 2022-11-08 Maxim Integrated Products, Inc. Amplifier switching control systems and methods
TWI719811B (zh) 2020-01-21 2021-02-21 瑞昱半導體股份有限公司 負回授系統架構及其迴圈濾波器
US11451200B2 (en) 2020-02-25 2022-09-20 Mediatek Inc. Low pop-click noise class-D amplifier
US11336182B2 (en) * 2020-07-19 2022-05-17 xMEMS Labs, Inc. Driving circuit with energy recycle capability
EP3989438B1 (en) * 2020-10-20 2023-08-16 Nxp B.V. Digital signal generator for audio artefact reduction
US11463052B2 (en) 2020-11-30 2022-10-04 Stmicroelectronics S.R.L. PWM driving circuit and method
CN114430227B (zh) * 2022-02-07 2023-06-30 Oppo广东移动通信有限公司 一种纹波电压处理装置及方法和开关电源
WO2023205376A1 (en) * 2022-04-21 2023-10-26 Cirrus Logic International Semiconductor Ltd. Non-linear function in an early-sampled hybrid multi-level converter amplifier system
US12531526B2 (en) * 2022-04-21 2026-01-20 Cirrus Logic Inc. Non-linear function in an early-sampled hybrid multi-level converter amplifier system
US20250030387A1 (en) * 2023-07-21 2025-01-23 Cirrus Logic International Semiconductor Ltd. Switching drivers with voltage monitoring
TWI892510B (zh) * 2024-03-13 2025-08-01 瑞昱半導體股份有限公司 音頻放大系統及其方法
US20250373244A1 (en) * 2024-06-03 2025-12-04 Cirrus Logic International Semiconductor Ltd. Switching drivers

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003041269A1 (en) * 2001-11-05 2003-05-15 Motorola, Inc., A Corporation Of The State Of Delaware Variable frequency switching amplifier and method therefor
CN1232990C (zh) * 2002-05-14 2005-12-21 索尼株式会社 声频设备和声频设备的控制方法
US20070286273A1 (en) * 2006-06-09 2007-12-13 Martin Clara Circuit and Method for Pulse Width Modulation by Means of Synchronized, Self-Oscillating Pulse Width Modulators
US20100239102A1 (en) * 2009-03-19 2010-09-23 Qualcomm Incorporated Digital filtering in a class d amplifier system to reduce noise fold over
US20120013402A1 (en) * 2010-07-19 2012-01-19 Broadcom Corporation Closed-loop class-d amplifier with modulated reference signal and related method

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06303049A (ja) * 1993-04-14 1994-10-28 Mitsubishi Electric Corp Ｐｗｍ増幅器
JP2004072707A (ja) * 2002-06-13 2004-03-04 Sony Corp パワーアンプ装置
US7002406B2 (en) * 2003-05-16 2006-02-21 Texas Instruments Incorporated Loop filter for class D amplifiers
JP4137732B2 (ja) * 2003-07-29 2008-08-20 シャープ株式会社 ディジタルアンプの駆動方法及び音声信号再生装置
JP2008066995A (ja) * 2006-09-06 2008-03-21 Fujitsu Ten Ltd 乗物搭載オーディオ機器用信号増幅装置
GB0710186D0 (en) * 2007-05-29 2007-07-04 Texas Instr Denmark PWM loop with minimum allasing error property
GB0717958D0 (en) 2007-09-14 2007-10-24 Motorola Inc Power supply controller circuitry
JP5532192B2 (ja) * 2008-01-24 2014-06-25 独立行政法人産業技術総合研究所 電力変換装置
EP2221964B1 (en) * 2009-02-18 2015-06-24 Hypex Electronics B.V. Self oscillating class D amplification device
CN103329431B (zh) * 2010-10-27 2016-09-14 梅鲁斯音频有限公司 使用多电平脉冲宽度调制的音频放大器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003041269A1 (en) * 2001-11-05 2003-05-15 Motorola, Inc., A Corporation Of The State Of Delaware Variable frequency switching amplifier and method therefor
CN1232990C (zh) * 2002-05-14 2005-12-21 索尼株式会社 声频设备和声频设备的控制方法
US20070286273A1 (en) * 2006-06-09 2007-12-13 Martin Clara Circuit and Method for Pulse Width Modulation by Means of Synchronized, Self-Oscillating Pulse Width Modulators
US20100239102A1 (en) * 2009-03-19 2010-09-23 Qualcomm Incorporated Digital filtering in a class d amplifier system to reduce noise fold over
CN102356544A (zh) * 2009-03-19 2012-02-15 高通股份有限公司 D类放大器系统中的用以减少噪声折叠的数字滤波
US20120013402A1 (en) * 2010-07-19 2012-01-19 Broadcom Corporation Closed-loop class-d amplifier with modulated reference signal and related method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106992756A (zh) * 2017-03-03 2017-07-28 广东欧珀移动通信有限公司 D类功率放大器和音频设备

Also Published As

Publication number Publication date
KR102068105B1 (ko) 2020-01-20
US20150288335A1 (en) 2015-10-08
DK2845314T3 (en) 2016-10-03
WO2013164229A1 (en) 2013-11-07
CN104272589A (zh) 2015-01-07
EP2845314B1 (en) 2016-06-29
EP2845314A1 (en) 2015-03-11
JP2015515841A (ja) 2015-05-28
KR20150016301A (ko) 2015-02-11
JP6325526B2 (ja) 2018-05-16
US9564862B2 (en) 2017-02-07

Similar Documents

Publication Publication Date Title
CN104272589B (zh) 具有可调环路滤波器特性的d类音频放大器
CN103329431B (zh) 使用多电平脉冲宽度调制的音频放大器
KR102551525B1 (ko) 멀티-레벨 클래스 d 오디오 전력 증폭기들
CN112514247B (zh) 自升压放大器
CN108880492A (zh) D类音频放大器及其输出级功率消耗的降低方法
KR20180013883A (ko) 재구성가능한 스위치 모드 컨버터
WO2024017878A1 (en) Tracking amplifier for inductive loads
HK1099417A1 (zh) 功率乘法器系统和方法
HK1099417B (en) A power multiplier system and method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: Denmark Herlev

Patentee after: Infineon Technologies Denmark Ltd.

Address before: Denmark Herlev

Patentee before: MERUS AUDIO APS

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20181017

Address after: Villach

Patentee after: INFINEON TECHNOLOGIES AUSTRIA AG

Address before: Denmark Herlev

Patentee before: Infineon Technologies Denmark Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20250409

Address after: Britain

Patentee after: CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR Ltd.

Country or region after: Britain

Address before: Villach

Patentee before: INFINEON TECHNOLOGIES AUSTRIA AG

Country or region before: Austria