Title:
ARRANGEMENT FOR PULSE-WIDTH MODULATING AN INPUT SIGNAL
Document Type and Number:
WIPO Patent Application WO2006030363
Kind Code:
A3
Abstract:
An arrangement for pulse-width modulating an analog or digital input signal is provided. The non-linear distortion generated in the pulse-width modulator is precompensated by applying a signal with reversed error to the pulse-width modulator. The signal with reversed error is generated by a further pulse-width modulator that receives the input signal and whose output signal is subtracted from twice the input signal. The arrangement may e.g. be used to drive class D audio amplifiers.
Inventors:
NUIJTEN PETRUS A C M (NL)
DOOPER LUTSEN (NL)
DOOPER LUTSEN (NL)
Application Number:
PCT/IB2005/052961
Publication Date:
July 13, 2006
Filing Date:
September 09, 2005
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
NUIJTEN PETRUS A C M (NL)
DOOPER LUTSEN (NL)
NUIJTEN PETRUS A C M (NL)
DOOPER LUTSEN (NL)
International Classes:
H03M3/00; H03M1/08
Domestic Patent References:
| WO2003043197A1 | 2003-05-22 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 12 5 December 2003 (2003-12-05)
HAWKSFORD M O J: "DYNAMIC MODEL-BASED LINEARIZATION OF QUANTIZED PULSE-WIDTH MODULATION FOR APPLICATIONS IN DIGITAL-TO-ANALOG CONVERSION AND DIGITAL POWER AMPLIFIER SYSTEMS", JOURNAL OF THE AUDIO ENGINEERING SOCIETY, AUDIO ENGINEERING SOCIETY, NEW YORK, NY, US, vol. 40, no. 4, 1 April 1992 (1992-04-01), pages 235 - 252, XP000278535, ISSN: 1549-4950
HAWKSFORD M O J: "DYNAMIC MODEL-BASED LINEARIZATION OF QUANTIZED PULSE-WIDTH MODULATION FOR APPLICATIONS IN DIGITAL-TO-ANALOG CONVERSION AND DIGITAL POWER AMPLIFIER SYSTEMS", JOURNAL OF THE AUDIO ENGINEERING SOCIETY, AUDIO ENGINEERING SOCIETY, NEW YORK, NY, US, vol. 40, no. 4, 1 April 1992 (1992-04-01), pages 235 - 252, XP000278535, ISSN: 1549-4950
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