JP2022548786A - 短絡条件下のオーディオ再生 - Google Patents

短絡条件下のオーディオ再生 Download PDF

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Publication number
JP2022548786A
JP2022548786A JP2022518647A JP2022518647A JP2022548786A JP 2022548786 A JP2022548786 A JP 2022548786A JP 2022518647 A JP2022518647 A JP 2022518647A JP 2022518647 A JP2022518647 A JP 2022518647A JP 2022548786 A JP2022548786 A JP 2022548786A
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JP
Japan
Prior art keywords
output
input
circuit
bridge
audio system
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.)
Pending
Application number
JP2022518647A
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English (en)
Japanese (ja)
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JP2022548786A5 (https=
Inventor
チャウラ モヒット
Original Assignee
テキサス インスツルメンツ インコーポレイテッド
日本テキサス・インスツルメンツ合同会社
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Filing date
Publication date
Application filed by テキサス インスツルメンツ インコーポレイテッド, 日本テキサス・インスツルメンツ合同会社 filed Critical テキサス インスツルメンツ インコーポレイテッド
Publication of JP2022548786A publication Critical patent/JP2022548786A/ja
Publication of JP2022548786A5 publication Critical patent/JP2022548786A5/ja
Pending legal-status Critical Current

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    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/26—Testing of individual semiconductor devices
    • G01R31/2607—Circuits therefor
    • G01R31/2621—Circuits therefor for testing field effect transistors, i.e. FET's
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
    • G01R31/2825—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere in household appliances or professional audio/video equipment
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults
    • 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
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
    • H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
    • H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • 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
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • H03F1/523—Circuit arrangements for protecting such amplifiers for amplifiers using field-effect devices
    • 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
    • H03F3/185—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only with field-effect devices
    • 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
    • H03F3/2173—Class D power amplifiers; Switching amplifiers of the bridge type
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Amplifiers (AREA)
  • Circuit For Audible Band Transducer (AREA)
JP2022518647A 2019-09-23 2020-09-23 短絡条件下のオーディオ再生 Pending JP2022548786A (ja)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201962904122P 2019-09-23 2019-09-23
US62/904,122 2019-09-23
US16/939,376 US11546709B2 (en) 2019-09-23 2020-07-27 Audio playback under short circuit conditions
US16/939,376 2020-07-27
PCT/US2020/052131 WO2021061714A1 (en) 2019-09-23 2020-09-23 Audio playback under short circuit conditions

Publications (2)

Publication Number Publication Date
JP2022548786A true JP2022548786A (ja) 2022-11-21
JP2022548786A5 JP2022548786A5 (https=) 2023-09-28

Family

ID=74881465

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022518647A Pending JP2022548786A (ja) 2019-09-23 2020-09-23 短絡条件下のオーディオ再生

Country Status (5)

Country Link
US (1) US11546709B2 (https=)
EP (1) EP4035417A4 (https=)
JP (1) JP2022548786A (https=)
CN (1) CN114503604B (https=)
WO (1) WO2021061714A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20260104840A1 (en) * 2024-10-11 2026-04-16 Harman Becker Automotive Systems, Inc. System for debugging audio amplifier of a vehicle

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05235651A (ja) * 1992-02-19 1993-09-10 Rohm Co Ltd Ｂｔｌ増幅装置の保護回路
JPH0746052A (ja) * 1993-07-28 1995-02-14 Mitsubishi Electric Corp 電力増幅回路
JP2004208216A (ja) * 2002-12-26 2004-07-22 Yamaha Corp パルス幅変調増幅器
JP2005252763A (ja) * 2004-03-05 2005-09-15 Matsushita Electric Ind Co Ltd 電力増幅回路
JP2007088921A (ja) * 2005-09-22 2007-04-05 Matsushita Electric Ind Co Ltd スピーカ保護回路
JP2007235526A (ja) * 2006-03-01 2007-09-13 Matsushita Electric Ind Co Ltd パルス変調型電力増幅器
JP2007325236A (ja) * 2006-06-05 2007-12-13 Yamaha Corp Ｄ級増幅器およびその過電流保護方法
JP2013521699A (ja) * 2010-03-04 2013-06-10 ボーズ・コーポレーション 汎用オーディオ電力増幅器
JP2018046431A (ja) * 2016-09-15 2018-03-22 ローム株式会社 Ｄ級アンプ回路、その制御方法、オーディオ出力装置、電子機器

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5805020A (en) 1996-06-27 1998-09-08 Harris Corporation Silent start class D amplifier
EP1449404B1 (en) * 2001-11-30 2006-08-30 Sonion A/S A high efficiency driver for miniature loudspeakers
JP2007244083A (ja) 2006-03-08 2007-09-20 Nec Electronics Corp 電流制御回路
JP5175142B2 (ja) * 2008-07-28 2013-04-03 ラピスセミコンダクタ株式会社 ショート検出回路
US8280070B2 (en) * 2008-08-20 2012-10-02 Siemens Industry, Inc. Arrangement and method for communicating audio and DC signals
EP2290812B1 (en) * 2009-08-11 2015-06-10 Dialog Semiconductor GmbH Concept, method and apparatus of improved distortion switched-mode amplifier
KR20130006424A (ko) 2009-11-30 2013-01-16 에스티 에릭슨 에스에이 디바이스 내의 팝업 노이즈 감소
US8384478B2 (en) 2010-03-04 2013-02-26 Bose Corporation Versatile audio power amplifier
EP2375566B1 (en) * 2010-04-12 2014-11-26 Dialog Semiconductor GmbH Duplicate feedback network in class D amplifiers
EP2387149B1 (en) * 2010-04-29 2012-11-07 Dialog Semiconductor GmbH Over-current protection for a switch mode class D audio amplifier
US8816614B2 (en) 2011-09-29 2014-08-26 Infineon Technologies Ag Diagnosis of over-current conditions in bipolar motor controllers
US9019012B2 (en) * 2011-11-18 2015-04-28 Cirrus Logic International (Uk) Limited Amplifier circuit with offset control
US8890608B2 (en) 2012-02-29 2014-11-18 Texas Instruments Incorporated Digital input class-D audio amplifier
US10219090B2 (en) * 2013-02-27 2019-02-26 Analog Devices Global Method and detector of loudspeaker diaphragm excursion
GB2561287B (en) * 2014-08-29 2019-03-20 Cirrus Logic Int Semiconductor Ltd Class D amplifier circuit
CN105245990A (zh) * 2015-10-26 2016-01-13 无锡智感星际科技有限公司 一种基于封闭式耳机的外界声源导入系统
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

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05235651A (ja) * 1992-02-19 1993-09-10 Rohm Co Ltd Ｂｔｌ増幅装置の保護回路
JPH0746052A (ja) * 1993-07-28 1995-02-14 Mitsubishi Electric Corp 電力増幅回路
JP2004208216A (ja) * 2002-12-26 2004-07-22 Yamaha Corp パルス幅変調増幅器
JP2005252763A (ja) * 2004-03-05 2005-09-15 Matsushita Electric Ind Co Ltd 電力増幅回路
JP2007088921A (ja) * 2005-09-22 2007-04-05 Matsushita Electric Ind Co Ltd スピーカ保護回路
JP2007235526A (ja) * 2006-03-01 2007-09-13 Matsushita Electric Ind Co Ltd パルス変調型電力増幅器
JP2007325236A (ja) * 2006-06-05 2007-12-13 Yamaha Corp Ｄ級増幅器およびその過電流保護方法
JP2013521699A (ja) * 2010-03-04 2013-06-10 ボーズ・コーポレーション 汎用オーディオ電力増幅器
JP2018046431A (ja) * 2016-09-15 2018-03-22 ローム株式会社 Ｄ級アンプ回路、その制御方法、オーディオ出力装置、電子機器

Also Published As

Publication number Publication date
WO2021061714A1 (en) 2021-04-01
CN114503604A (zh) 2022-05-13
EP4035417A4 (en) 2022-11-23
US11546709B2 (en) 2023-01-03
EP4035417A1 (en) 2022-08-03
CN114503604B (zh) 2025-08-15
US20210092540A1 (en) 2021-03-25

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