JP2018068023A - 回路および楽器 - Google Patents
回路および楽器 Download PDFInfo
- Publication number
- JP2018068023A JP2018068023A JP2016204922A JP2016204922A JP2018068023A JP 2018068023 A JP2018068023 A JP 2018068023A JP 2016204922 A JP2016204922 A JP 2016204922A JP 2016204922 A JP2016204922 A JP 2016204922A JP 2018068023 A JP2018068023 A JP 2018068023A
- Authority
- JP
- Japan
- Prior art keywords
- power
- voltage
- battery
- signal
- input
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 47
- 230000003321 amplification Effects 0.000 claims abstract description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims description 6
- 230000005236 sound signal Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 230000007423 decrease Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- 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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H3/00—Instruments in which the tones are generated by electromechanical means
- G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
- G10H3/14—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means
- G10H3/18—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means using a string, e.g. electric guitar
- G10H3/186—Means for processing the signal picked up from the strings
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
-
- 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
-
- 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
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2230/00—General physical, ergonomic or hardware implementation of electrophonic musical tools or instruments, e.g. shape or architecture
- G10H2230/025—Computing or signal processing architecture features
- G10H2230/035—Power management, i.e. specific power supply solutions for electrophonic musical instruments, e.g. auto power shut-off, energy saving designs, power conditioning, connector design, avoiding inconvenient wiring
-
- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
-
- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/50—Charging of capacitors, supercapacitors, ultra-capacitors or double layer capacitors
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
-
- 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
-
- 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)
- Electrophonic Musical Instruments (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
【解決手段】電源部201からアンプ204へ繋がる経路R2に、演算部221及びDC−DCコンバータ222を有する電力制御部220が設けられる。演算部221のMax関数231は、コンデンサ207の端子電圧VOUTに基づく電力FB信号PCTLと入力電力PINに基づく電力FB信号PCTLとのうち大きい方(高い電圧を示す方)をDC−DCコンバータ222のVFB端子に入力する。これにより、電力制御部220は、コンデンサ207を充電する際に電源部201から引き出される入力電力PINを制限電力PREFに制限することができる。
【選択図】図4
Description
図1は、本発明の第1の実施の形態に係る回路が適用される楽器のブロック図である。本楽器1として、例えばギターが例示される。楽器1は、不図示のボディ、ネック、ナット、サドル、ブリッジ、および弦などの一般的なアコースティックギターが備える構成に加えて、図1に示す変換部10、処理部200、トランスデューサ30などを備えている。ボディは内部空間が形成されるように組み立てられた不図示の表板、裏板、側板を有し、表板にネックが連結されている。ボディにブリッジを介して配設されているサドルと、ネックに配設されているナットとの間に弦が張設されている。変換部10は例えば、ブリッジに対して表板を挟んで対向する、表板の内部空間側に配設されている。変換部10は例えば、ピエゾピックアップを有し、弦の振動を電気信号である信号S1に変換して処理部200に出力する。処理部200は入力された信号S1に対して所定の信号処理を行い、信号S3をトランスデューサ30へ出力する。トランスデューサ30は、例えば表板に配設されており、信号S3に基づいて表板に振動を加える。例えば演奏者により弦に振動が加えられると、弦の振動に基づいて共鳴するボディから生音が放射されるとともに、トランスデューサ30がボディに加える振動に基づいて共鳴するボディから効果音が放射される。
本発明の第2の実施の形態では、第1の実施の形態に対し、電力制御部220の内部構成が異なる。従って、図3、図4に代えて図6(b)を用いて本実施の形態を説明する。図6(b)は、電力制御部220のハード構成のブロック図である。電力制御部220は、DC−DCコンバータ222に代えてDC−DCコンバータ230を有する。図1において、DC−DCコンバータ222をDC−DCコンバータ230に置き換えるものとする。その他の構成は第1の実施の形態と同様である。
Claims (6)
- 信号処理を行う信号処理手段と、
前記信号処理手段から出力される信号を増幅する増幅手段と、
バッテリから前記信号処理手段への第1給電経路と、
前記バッテリから前記増幅手段への第2給電経路と、
前記第2給電経路に接続され、前記増幅手段へ給電する電力を補助する蓄電器と、
前記第2給電経路に介在し、前記蓄電器を充電する際に前記バッテリから引き出される入力電力を所定値に制限する電力制限手段と、を備えることを特徴とする回路。 - 前記電力制限手段は、演算部と、電圧フィードバック端子を有する電圧変換器とを有し、
前記演算部は、前記蓄電器の端子電圧に基づく電圧フィードバック信号と前記入力電力に基づく電力フィードバック信号とのうち高い電圧を示す方を前記電圧フィードバック端子に入力することを特徴とする請求項1に記載の回路。 - 前記第2給電経路を流れる電流を検出する検出手段を有し、
前記入力電力は、前記バッテリから入力される入力電圧と前記検出手段により検出された電流とに基づいて算出されることを特徴とする請求項1または2に記載の回路。 - 前記電力制限手段は、演算部と、制限電流端子を有する電圧変換器とを有し、
前記演算部は、前記蓄電器の端子電圧に応じて、前記蓄電器を充電する際に前記バッテリから引き出される入力電力を前記所定値に制限するよう、前記制限電流端子に入力される電流を制御することを特徴とする請求項1に記載の回路。 - 前記電圧変換器は、DC−DCコンバータであることを特徴とする請求項2または4に記載の回路。
- 請求項5に記載の回路と、
前記バッテリと、
前記増幅手段から出力される信号に基づいて駆動されるスピーカまたはトランスデューサの少なくとも何れか一方と、を備え、
前記信号処理手段はオーディオ信号に係わる信号処理を行うことを特徴とする楽器。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016204922A JP6891444B2 (ja) | 2016-10-19 | 2016-10-19 | 回路および楽器 |
PCT/JP2017/037575 WO2018074478A1 (ja) | 2016-10-19 | 2017-10-17 | 回路および楽器 |
CN201780063351.9A CN110024255B (zh) | 2016-10-19 | 2017-10-17 | 回路及乐器 |
EP17862370.8A EP3531529B1 (en) | 2016-10-19 | 2017-10-17 | Circuit and musical instrument |
US16/384,091 US10693306B2 (en) | 2016-10-19 | 2019-04-15 | Circuit and musical instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016204922A JP6891444B2 (ja) | 2016-10-19 | 2016-10-19 | 回路および楽器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018068023A true JP2018068023A (ja) | 2018-04-26 |
JP6891444B2 JP6891444B2 (ja) | 2021-06-18 |
Family
ID=62018754
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016204922A Active JP6891444B2 (ja) | 2016-10-19 | 2016-10-19 | 回路および楽器 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10693306B2 (ja) |
EP (1) | EP3531529B1 (ja) |
JP (1) | JP6891444B2 (ja) |
CN (1) | CN110024255B (ja) |
WO (1) | WO2018074478A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021107903A (ja) * | 2019-12-27 | 2021-07-29 | ローランド株式会社 | 電子楽器、及び電子楽器の電源制御装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009094684A (ja) * | 2007-10-05 | 2009-04-30 | Yamaha Corp | 電子機器 |
WO2012102351A1 (ja) * | 2011-01-28 | 2012-08-02 | 住友重機械工業株式会社 | ショベル |
JP2015144524A (ja) * | 2014-01-31 | 2015-08-06 | ダイハツ工業株式会社 | 車両用電源装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004503199A (ja) | 2000-07-05 | 2004-01-29 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 装置 |
GB2385725B (en) * | 2002-02-25 | 2005-05-18 | Audio Partnership Plc | Power supply arrangements |
KR20070086169A (ko) * | 2004-12-03 | 2007-08-27 | 로무 가부시키가이샤 | 스위칭 전원 및 그 제어 회로와 그것을 이용한 전자 기기 |
JP4363457B2 (ja) * | 2007-05-01 | 2009-11-11 | ヤマハ株式会社 | 電力制御装置、スピーカ装置および電力制御方法 |
GB0715254D0 (en) * | 2007-08-03 | 2007-09-12 | Wolfson Ltd | Amplifier circuit |
WO2009041717A1 (ja) * | 2007-09-27 | 2009-04-02 | Yamaha Corporation | 電子機器 |
US7888907B2 (en) * | 2007-10-30 | 2011-02-15 | Bose Corporation | Controlled charging and use of power source |
US7944302B2 (en) * | 2009-08-24 | 2011-05-17 | Fender Musical Instruments Corporation | Method and apparatus for biasing an amplifier |
CN104469620B (zh) * | 2014-11-24 | 2018-05-08 | 青岛歌尔声学科技有限公司 | 一种音频输出功率大范围可调的声学产品 |
CN105744443B (zh) * | 2016-05-05 | 2019-07-09 | 广州博创乐器有限公司 | 用于弦乐器的数字音频处理系统 |
-
2016
- 2016-10-19 JP JP2016204922A patent/JP6891444B2/ja active Active
-
2017
- 2017-10-17 WO PCT/JP2017/037575 patent/WO2018074478A1/ja unknown
- 2017-10-17 EP EP17862370.8A patent/EP3531529B1/en active Active
- 2017-10-17 CN CN201780063351.9A patent/CN110024255B/zh active Active
-
2019
- 2019-04-15 US US16/384,091 patent/US10693306B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009094684A (ja) * | 2007-10-05 | 2009-04-30 | Yamaha Corp | 電子機器 |
WO2012102351A1 (ja) * | 2011-01-28 | 2012-08-02 | 住友重機械工業株式会社 | ショベル |
JP2015144524A (ja) * | 2014-01-31 | 2015-08-06 | ダイハツ工業株式会社 | 車両用電源装置 |
Also Published As
Publication number | Publication date |
---|---|
CN110024255A (zh) | 2019-07-16 |
EP3531529A1 (en) | 2019-08-28 |
WO2018074478A1 (ja) | 2018-04-26 |
EP3531529A4 (en) | 2020-06-03 |
EP3531529B1 (en) | 2021-12-22 |
JP6891444B2 (ja) | 2021-06-18 |
US20190245370A1 (en) | 2019-08-08 |
US10693306B2 (en) | 2020-06-23 |
CN110024255B (zh) | 2023-03-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11728779B2 (en) | Signal tracking-based supply voltage generation with over-boosted voltage | |
US9231543B2 (en) | Audio power amplification with reduced input power supply crest factor | |
WO2009041717A1 (ja) | 電子機器 | |
US20090045791A1 (en) | Switching regulator | |
TWI432948B (zh) | 用於一可攜式電腦系統之電源管理方法及其相關電源供應裝置與可攜式電腦系統 | |
JP2008072877A (ja) | 電源システム及び出力電圧の制御方法 | |
WO2022121540A1 (zh) | 一种音频处理电路和播放装置 | |
TWI460571B (zh) | Power factor control circuit and its control method | |
CN107026497B (zh) | 电路和乐器 | |
JP6891444B2 (ja) | 回路および楽器 | |
US8390260B2 (en) | Power supply for negative voltage load | |
JP5445192B2 (ja) | 電源装置 | |
JP2008243728A (ja) | 電源回路装置 | |
JP2014135846A (ja) | スイッチング電源装置 | |
US8159305B2 (en) | Amplifying device | |
JP6690171B2 (ja) | 電子機器 | |
TW201424229A (zh) | 電源供應器及其控制電路與控制方法 | |
JP2013059186A (ja) | 電源回路及びその制御方法 | |
US10671136B1 (en) | Detecting and recovering from device faults | |
US20230336068A1 (en) | Direct current power factor correction in a direct current-to-direct current conversion system | |
CN101055988B (zh) | 放大装置 | |
US20230344388A1 (en) | Power limiting for amplifiers | |
US20200076371A1 (en) | Power Supply Circuit and Audio Play Device | |
WO2024016146A1 (en) | Driving circuit and method for driving capacitive load, and speaker device and electronic device including driving circuit | |
JP3715277B2 (ja) | アクティブフィルタ装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20190823 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20201027 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20201126 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20210427 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20210510 |
|
R151 | Written notification of patent or utility model registration |
Ref document number: 6891444 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |