JP5484940B2 - デジタルアンプ - Google Patents

デジタルアンプ Download PDF

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Publication number
JP5484940B2
JP5484940B2 JP2010025289A JP2010025289A JP5484940B2 JP 5484940 B2 JP5484940 B2 JP 5484940B2 JP 2010025289 A JP2010025289 A JP 2010025289A JP 2010025289 A JP2010025289 A JP 2010025289A JP 5484940 B2 JP5484940 B2 JP 5484940B2
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JP
Japan
Prior art keywords
bootstrap capacitor
fet
bootstrap
circuit
voltage
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
JP2010025289A
Other languages
English (en)
Japanese (ja)
Other versions
JP2011166346A5 (enExample
JP2011166346A (ja
Inventor
宙 菅原
寿幸 佐々木
佳樹 前田
智臣 ▲高▼野
茂樹 庭山
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 Corp
Panasonic Holdings Corp
Original Assignee
Panasonic Corp
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 Panasonic Corp, Matsushita Electric Industrial Co Ltd filed Critical Panasonic Corp
Priority to JP2010025289A priority Critical patent/JP5484940B2/ja
Priority to PCT/JP2011/000428 priority patent/WO2011096175A1/ja
Priority to CN201180008747.6A priority patent/CN102754336B/zh
Publication of JP2011166346A publication Critical patent/JP2011166346A/ja
Publication of JP2011166346A5 publication Critical patent/JP2011166346A5/ja
Application granted granted Critical
Publication of JP5484940B2 publication Critical patent/JP5484940B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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)
JP2010025289A 2010-02-08 2010-02-08 デジタルアンプ Active JP5484940B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2010025289A JP5484940B2 (ja) 2010-02-08 2010-02-08 デジタルアンプ
PCT/JP2011/000428 WO2011096175A1 (ja) 2010-02-08 2011-01-26 デジタルアンプ
CN201180008747.6A CN102754336B (zh) 2010-02-08 2011-01-26 数字放大器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010025289A JP5484940B2 (ja) 2010-02-08 2010-02-08 デジタルアンプ

Publications (3)

Publication Number Publication Date
JP2011166346A JP2011166346A (ja) 2011-08-25
JP2011166346A5 JP2011166346A5 (enExample) 2013-02-07
JP5484940B2 true JP5484940B2 (ja) 2014-05-07

Family

ID=44355194

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010025289A Active JP5484940B2 (ja) 2010-02-08 2010-02-08 デジタルアンプ

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

Family Cites Families (7)

* 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
JP2004228912A (ja) * 2003-01-22 2004-08-12 Matsushita Electric Ind Co Ltd 高効率電力増幅装置
JP2006180049A (ja) * 2004-12-21 2006-07-06 Yamaha Corp ディジタルアンプ
US8022682B2 (en) * 2006-05-01 2011-09-20 International Rectifier Corporation Method to reduce inrush voltage and current in a switching power converter
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

Also Published As

Publication number Publication date
CN102754336A (zh) 2012-10-24
CN102754336B (zh) 2015-05-20
JP2011166346A (ja) 2011-08-25
WO2011096175A1 (ja) 2011-08-11

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