JP2019061499A - 電源回路および音響機器 - Google Patents
電源回路および音響機器 Download PDFInfo
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- JP2019061499A JP2019061499A JP2017185602A JP2017185602A JP2019061499A JP 2019061499 A JP2019061499 A JP 2019061499A JP 2017185602 A JP2017185602 A JP 2017185602A JP 2017185602 A JP2017185602 A JP 2017185602A JP 2019061499 A JP2019061499 A JP 2019061499A
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- 238000001514 detection method Methods 0.000 claims abstract description 58
- 230000005856 abnormality Effects 0.000 claims abstract description 55
- 238000000034 method Methods 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 description 20
- 238000010586 diagram Methods 0.000 description 16
- 239000003990 capacitor Substances 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 1
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Classifications
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- 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
- G01R31/40—Testing power supplies
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
- H02H3/207—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage also responsive to under-voltage
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
- G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
- G01R19/16547—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies voltage or current in AC supplies
-
- 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
- G01R31/30—Marginal testing, e.g. by varying supply voltage
- G01R31/3004—Current or voltage test
-
- 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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/06—Arrangements for supplying operative power
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
- H02H3/066—Reconnection being a consequence of eliminating the fault which caused disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/24—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to undervoltage or no-voltage
- H02H3/247—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to undervoltage or no-voltage having timing means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- 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
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
-
- 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
- H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
-
- 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
-
- 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
- H03F3/187—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only in integrated circuits
-
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/007—Protection circuits for transducers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/001—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection limiting speed of change of electric quantities, e.g. soft switching on or off
-
- 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
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
- H03G3/348—Muting in response to a mechanical action or to power supply variations, e.g. during tuning; Click removal circuits
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Multimedia (AREA)
- General Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Emergency Protection Circuit Devices (AREA)
- Protection Of Static Devices (AREA)
- Power Sources (AREA)
- Control Of Voltage And Current In General (AREA)
Abstract
【解決手段】外部電源から電力供給を受ける内部電源と、前記内部電源から電力供給を受けて、前記外部電源の異常を検出する異常検出回路と、前記外部電源から電力供給を受ける保護対象回路と、前記異常検出回路で異常を検出したときに、前記保護対象回路への電力を所定範囲内に制限する保護機能部と、を備える。
【選択図】図1
Description
10…交流電源
10A…第1交流電源
10B…第2交流電源
15…メイン回路
15A…第1メイン回路
15B…第2メイン回路
20…サブ電源
30,31…IC
40…高電圧検出回路
41…瞬断検出回路
45…電圧異常検出回路
50…スイッチ
51,52…リレースイッチ
71,72…トランス
401…整流回路
402…フォトカプラ
403…フォトカプラ
Claims (6)
- 外部電源から電力供給を受ける内部電源と、
前記内部電源から電力供給を受けて、前記外部電源の異常を検出する異常検出回路と、
前記外部電源から電力供給を受ける保護対象回路と、
前記異常検出回路で異常を検出したときに、前記保護対象回路への電力を所定範囲内に制限する保護機能部と、
を備えた電源回路。 - 前記外部電源は、第1外部電源と、第2外部電源を含み、
前記異常検出回路は、前記第2外部電源の異常を検出する、
請求項1に記載の電源回路。 - 前記内部電源は、前記第1外部電源の異常を検出する機能を有する、
請求項2に記載の電源回路。 - 前記異常は、所定電圧を超える高電圧および所定電圧以下の低電圧の状態を含む、
請求項1乃至請求項3のいずれかに記載の電源回路。 - 前記保護機能部は、前記異常検出回路で異常を検出しなくなり、かつ所定時間の経過後に、前記保護対象回路への電力の制限を解除する、
請求項1乃至請求項4のいずれかに記載の電源回路。 - 請求項1乃至請求項5のいずれかに記載の電源回路を備え、
前記保護対象回路は、音響信号を処理する回路を含む、
音響機器。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017185602A JP6930336B2 (ja) | 2017-09-27 | 2017-09-27 | 電源回路および音響機器 |
US16/123,342 US10768241B2 (en) | 2017-09-27 | 2018-09-06 | Power supply circuit and sound equipment |
CN201811130533.6A CN109560529B (zh) | 2017-09-27 | 2018-09-27 | 电源电路及音响设备 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017185602A JP6930336B2 (ja) | 2017-09-27 | 2017-09-27 | 電源回路および音響機器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019061499A true JP2019061499A (ja) | 2019-04-18 |
JP6930336B2 JP6930336B2 (ja) | 2021-09-01 |
Family
ID=65808242
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017185602A Active JP6930336B2 (ja) | 2017-09-27 | 2017-09-27 | 電源回路および音響機器 |
Country Status (3)
Country | Link |
---|---|
US (1) | US10768241B2 (ja) |
JP (1) | JP6930336B2 (ja) |
CN (1) | CN109560529B (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020194924A1 (ja) | 2019-03-27 | 2020-10-01 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ | 端末及び送信方法 |
JP2021182810A (ja) * | 2020-05-19 | 2021-11-25 | 株式会社明電舎 | 負荷回路故障検知装置および負荷回路故障検知方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7135548B2 (ja) * | 2018-08-01 | 2022-09-13 | 株式会社ジェイテクト | 電源監視装置及び電源監視方法 |
DE102021119739A1 (de) * | 2021-07-29 | 2023-02-02 | Truma Gerätetechnik GmbH & Co. KG | Überwachungsbaugruppe sowie System mit einer Überwachungsbaugruppe |
Citations (6)
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JPS576914A (en) * | 1980-06-16 | 1982-01-13 | Mitsubishi Electric Corp | Butt power supply device incorporating overvoltage absorbing device |
JPH09103027A (ja) * | 1995-10-03 | 1997-04-15 | Nippon Columbia Co Ltd | 電子機器保護装置 |
JP2006345624A (ja) * | 2005-06-08 | 2006-12-21 | Sharp Corp | 制御電源回路の不足・過電圧保護回路 |
JP2009284561A (ja) * | 2008-05-19 | 2009-12-03 | Sharp Corp | 電源保護方法、電源保護回路及び電気機器 |
JP2013165603A (ja) * | 2012-02-13 | 2013-08-22 | Tokai Rika Co Ltd | 保護回路 |
JP2014138504A (ja) * | 2013-01-17 | 2014-07-28 | Canon Inc | 電源装置及び画像形成装置 |
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JP3760552B2 (ja) | 1997-03-28 | 2006-03-29 | 株式会社安川電機 | 突入電流制限方法 |
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JP6111705B2 (ja) * | 2013-02-01 | 2017-04-12 | ブラザー工業株式会社 | 電源システム |
CN203251070U (zh) * | 2013-03-19 | 2013-10-23 | 陈淑玲 | 电路保护装置 |
JP6191592B2 (ja) * | 2014-12-25 | 2017-09-06 | オンキヨー&パイオニアテクノロジー株式会社 | 保護装置 |
CN104953541B (zh) * | 2015-07-29 | 2018-08-24 | 广东志高暖通设备股份有限公司 | 一种过电压保护装置 |
CN206283237U (zh) * | 2016-12-13 | 2017-06-27 | 京信通信技术(广州)有限公司 | 一种过压保护电路 |
-
2017
- 2017-09-27 JP JP2017185602A patent/JP6930336B2/ja active Active
-
2018
- 2018-09-06 US US16/123,342 patent/US10768241B2/en active Active
- 2018-09-27 CN CN201811130533.6A patent/CN109560529B/zh active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS576914A (en) * | 1980-06-16 | 1982-01-13 | Mitsubishi Electric Corp | Butt power supply device incorporating overvoltage absorbing device |
JPH09103027A (ja) * | 1995-10-03 | 1997-04-15 | Nippon Columbia Co Ltd | 電子機器保護装置 |
JP2006345624A (ja) * | 2005-06-08 | 2006-12-21 | Sharp Corp | 制御電源回路の不足・過電圧保護回路 |
JP2009284561A (ja) * | 2008-05-19 | 2009-12-03 | Sharp Corp | 電源保護方法、電源保護回路及び電気機器 |
JP2013165603A (ja) * | 2012-02-13 | 2013-08-22 | Tokai Rika Co Ltd | 保護回路 |
JP2014138504A (ja) * | 2013-01-17 | 2014-07-28 | Canon Inc | 電源装置及び画像形成装置 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020194924A1 (ja) | 2019-03-27 | 2020-10-01 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ | 端末及び送信方法 |
JP2021182810A (ja) * | 2020-05-19 | 2021-11-25 | 株式会社明電舎 | 負荷回路故障検知装置および負荷回路故障検知方法 |
JP7322807B2 (ja) | 2020-05-19 | 2023-08-08 | 株式会社明電舎 | 負荷回路故障検知装置および負荷回路故障検知方法 |
Also Published As
Publication number | Publication date |
---|---|
US20190094312A1 (en) | 2019-03-28 |
JP6930336B2 (ja) | 2021-09-01 |
US10768241B2 (en) | 2020-09-08 |
CN109560529A (zh) | 2019-04-02 |
CN109560529B (zh) | 2021-02-02 |
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