CA3072068C - POWER MANAGEMENT SYSTEM FOR A BATTERY-POWERED AUDIO DEVICE - Google Patents

POWER MANAGEMENT SYSTEM FOR A BATTERY-POWERED AUDIO DEVICE

Info

Publication number
CA3072068C
CA3072068C CA3072068A CA3072068A CA3072068C CA 3072068 C CA3072068 C CA 3072068C CA 3072068 A CA3072068 A CA 3072068A CA 3072068 A CA3072068 A CA 3072068A CA 3072068 C CA3072068 C CA 3072068C
Authority
CA
Canada
Prior art keywords
voltage
battery
charge
power conversion
mode
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
CA3072068A
Other languages
English (en)
French (fr)
Other versions
CA3072068A1 (en
Inventor
Andrew John Mason
Original Assignee
THX Ltd
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 THX Ltd filed Critical THX Ltd
Publication of CA3072068A1 publication Critical patent/CA3072068A1/en
Application granted granted Critical
Publication of CA3072068C publication Critical patent/CA3072068C/en
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
    • H03F3/2173—Class D power amplifiers; Switching amplifiers of the bridge type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries for charging batteries from AC mains by converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries for charging batteries from AC mains by converters
    • H02J7/04—Regulation of charging current or voltage
    • H02J7/06—Regulation of charging current or voltage using discharge tubes or semiconductor devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/865—Battery or charger load switching, e.g. concurrent charging and load supply
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/90—Regulation of charging or discharging current or voltage
    • H02J7/94—Regulation of charging or discharging current or voltage in response to battery current
    • 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
    • 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
    • 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
    • H02M3/158—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 including plural semiconductor devices as final control devices for a single load
    • H02M3/1582—Buck-boost converters
    • 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
    • H03F2200/144—Indexing scheme relating to amplifiers the feedback circuit of the amplifier stage comprising a passive resistor and passive capacitor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • H04R2201/028—Structural combinations of loudspeakers with built-in power amplifiers, e.g. in the same acoustic enclosure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/07—Applications of wireless loudspeakers or wireless microphones
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Dc-Dc Converters (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Amplifiers (AREA)
CA3072068A 2017-08-07 2018-08-02 POWER MANAGEMENT SYSTEM FOR A BATTERY-POWERED AUDIO DEVICE Active CA3072068C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201762542179P 2017-08-07 2017-08-07
US62/542,179 2017-08-07
PCT/US2018/045060 WO2019032380A1 (en) 2017-08-07 2018-08-02 CURRENT MANAGEMENT SYSTEM FOR BATTERY POWERED AUDIO DEVICE

Publications (2)

Publication Number Publication Date
CA3072068A1 CA3072068A1 (en) 2019-02-14
CA3072068C true CA3072068C (en) 2025-03-11

Family

ID=65231260

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3072068A Active CA3072068C (en) 2017-08-07 2018-08-02 POWER MANAGEMENT SYSTEM FOR A BATTERY-POWERED AUDIO DEVICE

Country Status (6)

Country Link
US (1) US10784827B2 (https=)
JP (1) JP7170710B2 (https=)
CN (1) CN111149274B (https=)
CA (1) CA3072068C (https=)
SG (1) SG11202000874YA (https=)
WO (1) WO2019032380A1 (https=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210013929A1 (en) * 2019-07-10 2021-01-14 3M Innovative Properties Company Electrical node with monitoring feature
CN111555416B (zh) * 2020-07-09 2020-11-17 深圳市创芯微微电子有限公司 一种电池充放电控制电路
US20260099294A1 (en) * 2022-09-30 2026-04-09 Sonos, Inc. Audio playback devices with battery as supplemental power source
JP2025180891A (ja) * 2024-05-31 2025-12-11 ヤマハ株式会社 音信号出力装置および音信号出力方法
WO2026029303A1 (ko) * 2024-07-29 2026-02-05 삼성전자 주식회사 배터리 충전 및 스피커로 전력 공급을 위한 전자 장치

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5667194A (en) 1992-11-10 1994-06-08 Motorola, Inc. Switching regulator and amplifier system
KR100222074B1 (ko) * 1996-12-17 1999-10-01 윤종용 정전력충전회로 및 이를 이용한 휴대용 컴퓨터
JPH10201123A (ja) * 1997-01-07 1998-07-31 Canon Inc 電子機器及びその電源制御方法
JP2004151908A (ja) 2002-10-30 2004-05-27 Sony Corp 電源回路
US7989981B2 (en) 2006-02-02 2011-08-02 Flextronics Ap, Llc Power adaptor and storage unit for portable devices
CN103560576B (zh) * 2006-11-16 2016-05-11 康明斯发电Ip公司 发电系统及方法
JP2008131777A (ja) 2006-11-22 2008-06-05 Sharp Corp 携帯型電子機器
KR101116483B1 (ko) * 2009-12-04 2012-02-27 삼성에스디아이 주식회사 에너지 저장 시스템
US9425631B2 (en) * 2012-02-27 2016-08-23 Infineon Technologies Austria Ag System and method for battery management
CN104953648B (zh) * 2014-03-26 2018-02-06 英特赛尔美国有限公司 电池充电系统及控制其的控制器和方法
CN104009529B (zh) * 2014-06-13 2016-08-24 南京矽力杰半导体技术有限公司 控制电路、电池供电装置和控制方法
JP6604863B2 (ja) 2016-02-05 2019-11-13 ローム株式会社 受電装置およびそのコントローラ、それを用いた電子機器、給電システムの制御方法

Also Published As

Publication number Publication date
CN111149274B (zh) 2023-07-14
US10784827B2 (en) 2020-09-22
CA3072068A1 (en) 2019-02-14
WO2019032380A1 (en) 2019-02-14
US20190044486A1 (en) 2019-02-07
SG11202000874YA (en) 2020-02-27
CN111149274A (zh) 2020-05-12
JP7170710B2 (ja) 2022-11-14
JP2020530753A (ja) 2020-10-22

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