CN102754336B - 数字放大器 - Google Patents

数字放大器 Download PDF

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Publication number
CN102754336B
CN102754336B CN201180008747.6A CN201180008747A CN102754336B CN 102754336 B CN102754336 B CN 102754336B CN 201180008747 A CN201180008747 A CN 201180008747A CN 102754336 B CN102754336 B CN 102754336B
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CN
China
Prior art keywords
bootstrap capacitor
bootstrap
voltage
unit
mosfet
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
CN201180008747.6A
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English (en)
Chinese (zh)
Other versions
CN102754336A (zh
Inventor
菅原宙
佐佐木寿幸
前田佳树
高野智臣
庭山茂树
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.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of CN102754336A publication Critical patent/CN102754336A/zh
Application granted granted Critical
Publication of CN102754336B publication Critical patent/CN102754336B/zh
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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
    • H03K17/6871—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors the output circuit comprising more than one controlled field-effect transistor
    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/0081—Power supply means, e.g. to the switch driver

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
CN201180008747.6A 2010-02-08 2011-01-26 数字放大器 Active CN102754336B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2010025289A JP5484940B2 (ja) 2010-02-08 2010-02-08 デジタルアンプ
JP2010-025289 2010-02-08
PCT/JP2011/000428 WO2011096175A1 (ja) 2010-02-08 2011-01-26 デジタルアンプ

Publications (2)

Publication Number Publication Date
CN102754336A CN102754336A (zh) 2012-10-24
CN102754336B true CN102754336B (zh) 2015-05-20

Family

ID=44355194

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201180008747.6A Active CN102754336B (zh) 2010-02-08 2011-01-26 数字放大器

Country Status (3)

Country Link
JP (1) JP5484940B2 (enExample)
CN (1) CN102754336B (enExample)
WO (1) WO2011096175A1 (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5582115B2 (ja) * 2011-09-05 2014-09-03 三菱電機株式会社 ブートストラップ回路、半導体装置
CN104410289B (zh) * 2014-11-28 2017-04-19 南京航空航天大学 一种双级式矩阵变换器驱动电源电路
JP6467751B2 (ja) * 2014-12-08 2019-02-13 パナソニックＩｐマネジメント株式会社 点灯装置及び照明器具
CN106714032B (zh) * 2015-11-18 2020-02-04 晶豪科技股份有限公司 具有自举电容充电电路的电子装置
US11070203B2 (en) 2018-02-19 2021-07-20 Cirrus Logic, Inc. Dual bootstrapping for an open-loop pulse width modulation driver
US11190168B2 (en) 2018-02-19 2021-11-30 Cirrus Logic, Inc. Dual bootstrapping for an open-loop pulse width modulation driver
GB2585794B (en) * 2018-02-19 2022-04-20 Cirrus Logic Int Semiconductor Ltd Dual bootstrapping for an open-loop pulse width modulation driver
JP2021084337A (ja) * 2019-11-28 2021-06-03 セイコーエプソン株式会社 液体吐出装置、及び駆動回路
GB2593279A (en) * 2020-02-07 2021-09-22 Cirrus Logic Int Semiconductor Ltd Dual bootstrapping for an open-loop pulse width modulation driver
JP7528648B2 (ja) * 2020-09-01 2024-08-06 オムロン株式会社 スイッチング回路装置及び電力変換装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004228912A (ja) * 2003-01-22 2004-08-12 Matsushita Electric Ind Co Ltd 高効率電力増幅装置
CN1794569A (zh) * 2004-12-21 2006-06-28 雅马哈株式会社 数字放大器
US20070252566A1 (en) * 2006-05-01 2007-11-01 Jun Honda Method to reduce inrush voltage and current in a switching power converter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002330064A (ja) * 2001-04-27 2002-11-15 Onkyo Corp ブートストラップ回路
JP2003133924A (ja) * 2001-10-19 2003-05-09 Ematic:Kk ハイサイドスイッチ駆動電源
JP4872582B2 (ja) * 2006-10-04 2012-02-08 株式会社デンソー 負荷駆動回路
JP5094431B2 (ja) * 2008-01-11 2012-12-12 ローム株式会社 電力増幅回路

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004228912A (ja) * 2003-01-22 2004-08-12 Matsushita Electric Ind Co Ltd 高効率電力増幅装置
CN1794569A (zh) * 2004-12-21 2006-06-28 雅马哈株式会社 数字放大器
US20070252566A1 (en) * 2006-05-01 2007-11-01 Jun Honda Method to reduce inrush voltage and current in a switching power converter

Also Published As

Publication number Publication date
CN102754336A (zh) 2012-10-24
JP2011166346A (ja) 2011-08-25
JP5484940B2 (ja) 2014-05-07
WO2011096175A1 (ja) 2011-08-11

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Legal Events

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C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LT

Free format text: FORMER OWNER: MATSUSHITA ELECTRIC INDUSTRIAL CO, LTD.

Effective date: 20150908

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20150908

Address after: Osaka

Patentee after: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT Co.,Ltd.

Address before: Osaka

Patentee before: Matsushita Electric Industrial Co.,Ltd.