DE69818631T2 - Verstärkungsanordnung für digitale signale - Google Patents

Verstärkungsanordnung für digitale signale Download PDF

Info

Publication number
DE69818631T2
DE69818631T2 DE69818631T DE69818631T DE69818631T2 DE 69818631 T2 DE69818631 T2 DE 69818631T2 DE 69818631 T DE69818631 T DE 69818631T DE 69818631 T DE69818631 T DE 69818631T DE 69818631 T2 DE69818631 T2 DE 69818631T2
Authority
DE
Germany
Prior art keywords
output
input
arrangement
comparator
switching amplifier
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 - Lifetime
Application number
DE69818631T
Other languages
German (de)
English (en)
Other versions
DE69818631D1 (de
Inventor
Aldegonda Johannes VAN DEN HOMBERG
Jeanne Kathleen PHILIPS
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.)
NXP BV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Application granted granted Critical
Publication of DE69818631D1 publication Critical patent/DE69818631D1/de
Publication of DE69818631T2 publication Critical patent/DE69818631T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/331—Sigma delta modulation being used in an amplifying circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE69818631T 1997-08-12 1998-07-16 Verstärkungsanordnung für digitale signale Expired - Lifetime DE69818631T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP97202484 1997-08-12
EP97202484 1997-08-12
PCT/IB1998/001080 WO1999008378A2 (en) 1997-08-12 1998-07-16 Device for amplifying digital signals

Publications (2)

Publication Number Publication Date
DE69818631D1 DE69818631D1 (de) 2003-11-06
DE69818631T2 true DE69818631T2 (de) 2004-08-12

Family

ID=8228634

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69818631T Expired - Lifetime DE69818631T2 (de) 1997-08-12 1998-07-16 Verstärkungsanordnung für digitale signale

Country Status (5)

Country Link
US (1) US6140875A (enExample)
EP (1) EP0932932B1 (enExample)
JP (1) JP2001502156A (enExample)
DE (1) DE69818631T2 (enExample)
WO (1) WO1999008378A2 (enExample)

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* Cited by examiner, † Cited by third party
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WO1999038255A2 (en) * 1998-01-22 1999-07-29 Koninklijke Philips Electronics N.V. Pwm amplifier
US6420930B1 (en) 2000-07-12 2002-07-16 Monolithic Power Systems, Inc. Class D audio amplifier
US6476673B2 (en) * 2000-07-12 2002-11-05 Monolithic Power Systems, Inc. Class D audio amplifier
CN1277351C (zh) 2002-10-03 2006-09-27 三菱电机株式会社 D类放大器
JP3776392B2 (ja) * 2002-10-03 2006-05-17 三菱電機株式会社 Ｄ級増幅器
US6891432B2 (en) * 2002-11-14 2005-05-10 Mia-Com, Inc. Apparatus, methods and articles of manufacture for electromagnetic processing
US7526260B2 (en) * 2002-11-14 2009-04-28 M/A-Com Eurotec, B.V. Apparatus, methods and articles of manufacture for linear signal modification
US7545865B2 (en) * 2002-12-03 2009-06-09 M/A-Com, Inc. Apparatus, methods and articles of manufacture for wideband signal processing
US7245183B2 (en) * 2002-11-14 2007-07-17 M/A-Com Eurotec Bv Apparatus, methods and articles of manufacture for processing an electromagnetic wave
US7298854B2 (en) * 2002-12-04 2007-11-20 M/A-Com, Inc. Apparatus, methods and articles of manufacture for noise reduction in electromagnetic signal processing
US6924699B2 (en) * 2003-03-06 2005-08-02 M/A-Com, Inc. Apparatus, methods and articles of manufacture for digital modification in electromagnetic signal processing
US7203262B2 (en) 2003-05-13 2007-04-10 M/A-Com, Inc. Methods and apparatus for signal modification in a fractional-N phase locked loop system
US7187231B2 (en) * 2002-12-02 2007-03-06 M/A-Com, Inc. Apparatus, methods and articles of manufacture for multiband signal processing
EP1429455A1 (en) * 2002-12-11 2004-06-16 Dialog Semiconductor GmbH Linearization of a PDM class-D amplifier
US6859098B2 (en) 2003-01-17 2005-02-22 M/A-Com, Inc. Apparatus, methods and articles of manufacture for control in an electromagnetic processor
US7038535B2 (en) * 2003-03-29 2006-05-02 Wai Laing Lee PWM digital amplifier with high-order loop filter
US7091778B2 (en) * 2003-09-19 2006-08-15 M/A-Com, Inc. Adaptive wideband digital amplifier for linearly modulated signal amplification and transmission
US7480511B2 (en) * 2003-09-19 2009-01-20 Trimble Navigation Limited Method and system for delivering virtual reference station data
AU2003304647A1 (en) * 2003-10-10 2005-04-27 Tc Electronic A/S Power supply compensation
US7343138B2 (en) * 2003-12-08 2008-03-11 M/A-Com, Inc. Compensating for load pull in electromagentic signal propagation using adaptive impedance matching
TWI282211B (en) * 2005-01-17 2007-06-01 Realtek Semiconductor Corp Power amplifier and method for correcting error of output signals thereof
US7283001B2 (en) * 2005-05-12 2007-10-16 Cirrus Logic, Inc. Noise-shaping amplifier with waveform lock
GB2429351B (en) * 2005-08-17 2009-07-08 Wolfson Microelectronics Plc Feedback controller for PWM amplifier
CN101371434B (zh) * 2006-01-24 2011-04-20 D2音频有限公司 用于通过将超声波信号加到输入音频信号以改进数字放大器的性能的系统和方法
TWI336166B (en) * 2006-02-20 2011-01-11 Realtek Semiconductor Corp Digital amplifier and thereof method
US7965141B2 (en) * 2006-07-07 2011-06-21 Nxp B.V. Class D audio amplifier
US7847433B2 (en) 2007-11-27 2010-12-07 Rain Bird Corporation Universal irrigation controller power supply
US7554391B1 (en) 2008-01-11 2009-06-30 Freescale Semiconductor, Inc. Amplifier having a virtual ground and method thereof
JP5376311B2 (ja) * 2009-07-27 2013-12-25 ローム株式会社 半導体装置および電子機器
SE534502C2 (sv) * 2009-09-14 2011-09-13 Abletec As Effektförstärkare
US9515617B2 (en) 2010-10-27 2016-12-06 Merus Audio Aps Audio amplifier using multi-level pulse width modulation
JP5618776B2 (ja) * 2010-11-22 2014-11-05 ローム株式会社 半導体装置及びこれを用いた電子機器

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3537022A (en) * 1968-01-10 1970-10-27 Hewlett Packard Co Signal translating circuit
JPS5829646B2 (ja) * 1974-11-02 1983-06-24 ソニー株式会社 パルス幅変調増幅器
JPS5947486B2 (ja) * 1976-12-06 1984-11-19 ソニー株式会社 パルス幅変調増巾回路
JPS6017167B2 (ja) * 1978-05-23 1985-05-01 ソニー株式会社 パルス巾変調信号増幅回路
JPS58130617A (ja) * 1982-01-29 1983-08-04 Nippon Gakki Seizo Kk パルス幅変調回路
US4554512A (en) * 1984-08-27 1985-11-19 Aerotech, Inc. Switching amplifier with MOSFET driver circuit
SU1252887A1 (ru) * 1985-01-07 1986-08-23 Предприятие П/Я А-1658 Преобразователь с частотно-широтно-импульсным управлением
DE3934215A1 (de) * 1989-10-13 1991-04-18 Rheydt Kabelwerk Ag Digital/analogsystem
GB9027503D0 (en) * 1990-12-19 1991-02-06 Sandler Mark B Improvements in or relating to digital to analogue conversion
US5218315A (en) * 1992-01-06 1993-06-08 Infinity Systems, Inc. Switching amplifier
US5160896A (en) * 1992-02-18 1992-11-03 Harman International Industries, Incorporated Class D amplifier
US5352986A (en) * 1993-01-22 1994-10-04 Digital Fidelity, Inc. Closed loop power controller
US5410592A (en) * 1993-06-04 1995-04-25 Harris Corporation Class `D` audio speaker amplifier circuit with state variable feedback control
US5815581A (en) * 1995-10-19 1998-09-29 Mitel Semiconductor, Inc. Class D hearing aid amplifier with feedback
US5617058A (en) * 1995-11-13 1997-04-01 Apogee Technology, Inc. Digital signal processing for linearization of small input signals to a tri-state power switch
DE19619208A1 (de) * 1996-05-11 1997-11-13 Klugbauer Heilmeier Josef Digitaler Verstärker

Also Published As

Publication number Publication date
WO1999008378A2 (en) 1999-02-18
WO1999008378A3 (en) 1999-04-29
EP0932932B1 (en) 2003-10-01
US6140875A (en) 2000-10-31
JP2001502156A (ja) 2001-02-13
EP0932932A1 (en) 1999-08-04
DE69818631D1 (de) 2003-11-06

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Legal Events

Date Code Title Description
8320 Willingness to grant licences declared (paragraph 23)
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: EISENFUEHR, SPEISER & PARTNER, 10178 BERLIN

8327 Change in the person/name/address of the patent owner

Owner name: NXP B.V., EINDHOVEN, NL