CN114503604B - 短路状况下的音频回放 - Google Patents

短路状况下的音频回放

Info

Publication number
CN114503604B
CN114503604B CN202080064615.4A CN202080064615A CN114503604B CN 114503604 B CN114503604 B CN 114503604B CN 202080064615 A CN202080064615 A CN 202080064615A CN 114503604 B CN114503604 B CN 114503604B
Authority
CN
China
Prior art keywords
input
output
circuit
bridge
signal
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
CN202080064615.4A
Other languages
English (en)
Chinese (zh)
Other versions
CN114503604A (zh
Inventor
M·查瓦拉
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.)
Texas Instruments Inc
Original Assignee
Texas Instruments 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 Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of CN114503604A publication Critical patent/CN114503604A/zh
Application granted granted Critical
Publication of CN114503604B publication Critical patent/CN114503604B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • 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)
CN202080064615.4A 2019-09-23 2020-09-23 短路状况下的音频回放 Active CN114503604B (zh)

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
CN114503604A CN114503604A (zh) 2022-05-13
CN114503604B true CN114503604B (zh) 2025-08-15

Family

ID=74881465

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202080064615.4A Active CN114503604B (zh) 2019-09-23 2020-09-23 短路状况下的音频回放

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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1608393A (zh) * 2001-11-30 2005-04-20 桑尼昂公司 一种小型扬声器的高效率驱动器
CN107112958A (zh) * 2014-08-29 2017-08-29 思睿逻辑国际半导体有限公司 D类放大器电路
CN109218921A (zh) * 2017-07-03 2019-01-15 英飞凌科技奥地利有限公司 具有过载保护电路的d类音频放大器及其保护方法

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2565818B2 (ja) * 1992-02-19 1996-12-18 ローム株式会社 Ｂｔｌ増幅装置の保護回路およびオーディオ装置
JPH0746052A (ja) * 1993-07-28 1995-02-14 Mitsubishi Electric Corp 電力増幅回路
US5805020A (en) 1996-06-27 1998-09-08 Harris Corporation Silent start class D amplifier
JP4016833B2 (ja) * 2002-12-26 2007-12-05 ヤマハ株式会社 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
JP2007244083A (ja) 2006-03-08 2007-09-20 Nec Electronics Corp 電流制御回路
JP4535028B2 (ja) * 2006-06-05 2010-09-01 ヤマハ株式会社 Ｄ級増幅器およびその過電流保護方法
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
US7986187B1 (en) * 2010-03-04 2011-07-26 Bose Corporation Versatile audio power amplifier
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
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
JP6820171B2 (ja) * 2016-09-15 2021-01-27 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
EP3402070B1 (en) * 2017-05-11 2020-02-12 Infineon Technologies Austria AG Class d audio amplifier with adjustable gate drive

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1608393A (zh) * 2001-11-30 2005-04-20 桑尼昂公司 一种小型扬声器的高效率驱动器
CN107112958A (zh) * 2014-08-29 2017-08-29 思睿逻辑国际半导体有限公司 D类放大器电路
CN109218921A (zh) * 2017-07-03 2019-01-15 英飞凌科技奥地利有限公司 具有过载保护电路的d类音频放大器及其保护方法

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
JP2022548786A (ja) 2022-11-21
US20210092540A1 (en) 2021-03-25

Similar Documents

Publication Publication Date Title
TWI261967B (en) Rush current limiting circuit for a PFM control charge pump
US8134400B2 (en) Semiconductor circuit
EP3715873A1 (en) Current detection circuit, semiconductor device, and semiconductor system
US10367459B2 (en) Class-D amplifier circuit
US10734955B2 (en) Audio amplifier, audio output device including the same, and electronic apparatus
US8446216B2 (en) Anti-pop circuit
US20190097681A1 (en) Ringing suppression circuit
CN114503604B (zh) 短路状况下的音频回放
WO2008117247A2 (en) Electronic device with a high voltage tolerant unit
US8067986B2 (en) Closed loop surge protection technique for differential amplifiers
US6603353B2 (en) Switching power amplifier
US7092538B2 (en) Switched microphone buffer
CN111279570B (zh) 反极性保护装置、反极性保护装置的运行方法和相应用途
CN113381709B (zh) 一种d类放大器
JP7348835B2 (ja) オーディオアンプｉｃ、それを用いた車載オーディオシステム、電子機器
CN115298945B (zh) Y桥式驱动器中的电源间短路的检测和保护
CN117650779B (zh) Igbt保护电路及芯片
US11050396B2 (en) Amplifier circuit
JP2007509562A (ja) スイッチ
CN117368703A (zh) 一种适用于d类放大器的直流检测电路以及电子设备
KR100788224B1 (ko) 출력 버퍼 회로
CN117977784A (zh) 一种开关电源电路、电源管理装置及其控制方法
CN119336114A (zh) 电压控制电路、方法、芯片及电子设备
GB2545281A (en) Systems and methods for implementing hysteresis in a comparator

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant