JP4453463B2 - 三角波生成回路 - Google Patents

三角波生成回路 Download PDF

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Publication number
JP4453463B2
JP4453463B2 JP2004197384A JP2004197384A JP4453463B2 JP 4453463 B2 JP4453463 B2 JP 4453463B2 JP 2004197384 A JP2004197384 A JP 2004197384A JP 2004197384 A JP2004197384 A JP 2004197384A JP 4453463 B2 JP4453463 B2 JP 4453463B2
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JP
Japan
Prior art keywords
constant current
triangular wave
circuit
power supply
output
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.)
Expired - Fee Related
Application number
JP2004197384A
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English (en)
Japanese (ja)
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JP2006020177A5 (enExample
JP2006020177A (ja
Inventor
信昭 辻
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.)
Yamaha Corp
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Yamaha Corp
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Publication date
Application filed by Yamaha Corp filed Critical Yamaha Corp
Priority to JP2004197384A priority Critical patent/JP4453463B2/ja
Priority to US11/170,517 priority patent/US7183818B2/en
Publication of JP2006020177A publication Critical patent/JP2006020177A/ja
Publication of JP2006020177A5 publication Critical patent/JP2006020177A5/ja
Application granted granted Critical
Publication of JP4453463B2 publication Critical patent/JP4453463B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H03K7/08—Duration or width modulation ; Duty cycle modulation
    • 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
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/066—Generating pulses having essentially a finite slope or stepped portions having triangular shape using a Miller-integrator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/351—Pulse width modulation being used in an amplifying circuit

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
JP2004197384A 2004-07-02 2004-07-02 三角波生成回路 Expired - Fee Related JP4453463B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2004197384A JP4453463B2 (ja) 2004-07-02 2004-07-02 三角波生成回路
US11/170,517 US7183818B2 (en) 2004-07-02 2005-06-29 Triangular wave generating circuit adapted to class-D amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004197384A JP4453463B2 (ja) 2004-07-02 2004-07-02 三角波生成回路

Publications (3)

Publication Number Publication Date
JP2006020177A JP2006020177A (ja) 2006-01-19
JP2006020177A5 JP2006020177A5 (enExample) 2007-12-27
JP4453463B2 true JP4453463B2 (ja) 2010-04-21

Family

ID=35513232

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004197384A Expired - Fee Related JP4453463B2 (ja) 2004-07-02 2004-07-02 三角波生成回路

Country Status (2)

Country Link
US (1) US7183818B2 (enExample)
JP (1) JP4453463B2 (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7355461B2 (en) * 2004-12-15 2008-04-08 Asahi Kasei Microsystems Co., Ltd. Waveform generating circuit and spread spectrum clock generator
JP4684112B2 (ja) * 2006-01-31 2011-05-18 富士通テン株式会社 三角波生成回路
EP2127078B1 (en) * 2007-01-25 2012-09-26 RGB Systems, Inc. Method and apparatus for producing triangular waveform with low audio band noise content
JP4407743B2 (ja) * 2007-12-03 2010-02-03 オンキヨー株式会社 パルス幅変調回路及びそれを用いたスイッチングアンプ
US7746130B2 (en) * 2008-07-14 2010-06-29 Elite Semiconductor Memory Technology, Inc. Triangular wave generating circuit having synchronization with external clock
JP5675491B2 (ja) 2011-05-13 2015-02-25 富士フイルム株式会社 導電シート及びタッチパネル
US8633740B2 (en) 2011-09-08 2014-01-21 Intel Mobile Communications Triangular waveform generator having differential output synchronized with external clock signal
US9252788B1 (en) 2014-09-11 2016-02-02 International Business Machines Corporation Phase error detection in phase lock loop and delay lock loop devices
JP2017073583A (ja) * 2015-10-05 2017-04-13 ヤマハ株式会社 Ｄ級増幅器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01318424A (ja) 1988-06-20 1989-12-22 Fuji Electric Co Ltd 三角波発生回路
JP3567747B2 (ja) * 1998-07-31 2004-09-22 富士通株式会社 電圧制御発振器及び周波数−電圧変換器
DE19841719C2 (de) * 1998-09-11 2002-04-25 St Microelectronics Gmbh Schaltungsanordnung zur Flankensteilheitsformung
JP3982342B2 (ja) 2002-03-28 2007-09-26 ヤマハ株式会社 Ｄ級増幅器における三角波生成回路および該三角波生成回路を用いたｄ級増幅器
JP4461813B2 (ja) * 2003-02-28 2010-05-12 ヤマハ株式会社 パルス幅変調増幅器

Also Published As

Publication number Publication date
US7183818B2 (en) 2007-02-27
US20060001461A1 (en) 2006-01-05
JP2006020177A (ja) 2006-01-19

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