JP2008244623A - 半導体集積回路 - Google Patents

半導体集積回路 Download PDF

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Publication number
JP2008244623A
JP2008244623A JP2007079613A JP2007079613A JP2008244623A JP 2008244623 A JP2008244623 A JP 2008244623A JP 2007079613 A JP2007079613 A JP 2007079613A JP 2007079613 A JP2007079613 A JP 2007079613A JP 2008244623 A JP2008244623 A JP 2008244623A
Authority
JP
Japan
Prior art keywords
voltage
circuit
power supply
output
charge pump
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.)
Pending
Application number
JP2007079613A
Other languages
English (en)
Japanese (ja)
Other versions
JP2008244623A5 (OSRAM
Inventor
Satoshi Azuhata
智 小豆畑
Mutsumi Yamamoto
睦 山本
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 Holdings Corp
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
Priority to JP2007079613A priority Critical patent/JP2008244623A/ja
Priority to US12/055,714 priority patent/US7619479B2/en
Publication of JP2008244623A publication Critical patent/JP2008244623A/ja
Publication of JP2008244623A5 publication Critical patent/JP2008244623A5/ja
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • H03F3/3001—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor with field-effect transistors
    • H03F3/301—CMOS common drain output SEPP amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)
  • Amplifiers (AREA)
JP2007079613A 2007-03-26 2007-03-26 半導体集積回路 Pending JP2008244623A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2007079613A JP2008244623A (ja) 2007-03-26 2007-03-26 半導体集積回路
US12/055,714 US7619479B2 (en) 2007-03-26 2008-03-26 Semiconductor integrated circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007079613A JP2008244623A (ja) 2007-03-26 2007-03-26 半導体集積回路

Publications (2)

Publication Number Publication Date
JP2008244623A true JP2008244623A (ja) 2008-10-09
JP2008244623A5 JP2008244623A5 (OSRAM) 2009-09-10

Family

ID=39915450

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007079613A Pending JP2008244623A (ja) 2007-03-26 2007-03-26 半導体集積回路

Country Status (2)

Country Link
US (1) US7619479B2 (OSRAM)
JP (1) JP2008244623A (OSRAM)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011066726A (ja) * 2009-09-18 2011-03-31 Yamaha Corp 増幅装置
JP2011147161A (ja) * 2007-05-21 2011-07-28 Natl Semiconductor Corp <Ns> オーディオアンプ用の非対称チャージポンプ装置及び方法
JP2011160031A (ja) * 2010-01-29 2011-08-18 Ricoh Co Ltd 音声音楽再生装置
JP2011223222A (ja) * 2010-04-08 2011-11-04 Rohm Co Ltd オーディオ信号処理回路およびそれを用いた電子機器
JP2015201705A (ja) * 2014-04-07 2015-11-12 新日本無線株式会社 計装増幅器

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7830209B1 (en) * 2009-01-19 2010-11-09 Cirrus Logic, Inc. Signal level selected efficiency in a charge pump power supply for a consumer device audio power output stage
TWI387359B (zh) * 2009-01-21 2013-02-21 Ite Tech Inc 耳機的電壓產生裝置
US8004366B2 (en) * 2009-10-29 2011-08-23 Texas Instruments Incorporated Area and power efficient, high swing and monolitihic ground centered headphone amplifier circuit operable on a low voltage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11243319A (ja) * 1993-06-30 1999-09-07 Sanyo Electric Co Ltd 電源回路の設計方法および電源回路
WO2006031304A2 (en) * 2004-07-29 2006-03-23 Maxim Integrated Products, Inc. Single supply direct drive amplifier
JP2006099950A (ja) * 2004-09-20 2006-04-13 Samsung Electronics Co Ltd 電流消耗が減少した内部電源電圧発生器
JP2007036373A (ja) * 2005-07-22 2007-02-08 Fujifilm Corp カメラモジュール搭載装置及びカメラモジュール用電源装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05347519A (ja) * 1991-12-31 1993-12-27 Texas Instr Inc <Ti> 演算増幅器
US5686860A (en) * 1995-09-25 1997-11-11 Motorola, Inc. Amplifier and controlling apparatus operating from a unipolar power supply
JP2000040385A (ja) 1998-07-17 2000-02-08 Mitsubishi Electric Corp 半導体装置
US7378904B2 (en) * 2003-10-15 2008-05-27 Texas Instruments Incorporated Soft transitions between muted and unmuted states in class D audio amplifiers
US6922099B2 (en) * 2003-10-21 2005-07-26 Saifun Semiconductors Ltd. Class AB voltage regulator
KR100809071B1 (ko) * 2006-09-25 2008-03-03 삼성전자주식회사 고전압 발생 회로를 구비하는 반도체 장치 및 그 전압 발생방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11243319A (ja) * 1993-06-30 1999-09-07 Sanyo Electric Co Ltd 電源回路の設計方法および電源回路
WO2006031304A2 (en) * 2004-07-29 2006-03-23 Maxim Integrated Products, Inc. Single supply direct drive amplifier
JP2006099950A (ja) * 2004-09-20 2006-04-13 Samsung Electronics Co Ltd 電流消耗が減少した内部電源電圧発生器
JP2007036373A (ja) * 2005-07-22 2007-02-08 Fujifilm Corp カメラモジュール搭載装置及びカメラモジュール用電源装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011147161A (ja) * 2007-05-21 2011-07-28 Natl Semiconductor Corp <Ns> オーディオアンプ用の非対称チャージポンプ装置及び方法
JP2011066726A (ja) * 2009-09-18 2011-03-31 Yamaha Corp 増幅装置
JP2011160031A (ja) * 2010-01-29 2011-08-18 Ricoh Co Ltd 音声音楽再生装置
JP2011223222A (ja) * 2010-04-08 2011-11-04 Rohm Co Ltd オーディオ信号処理回路およびそれを用いた電子機器
JP2015201705A (ja) * 2014-04-07 2015-11-12 新日本無線株式会社 計装増幅器

Also Published As

Publication number Publication date
US7619479B2 (en) 2009-11-17
US20080290950A1 (en) 2008-11-27

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