Sigma-delta modulator with PWM output

Details Sigma-delta modulator with PWM output Sigma-delta modulator with PWM output

2005-12-06

2005-12-06

JeanPierre, Peguy (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

C341S144000

Reexamination Certificate

active

06972704

ABSTRACT:
The present invention relates to a method for providing an improved generated arbitrary waveform using a sigma-delta modulator with pulse width modulation, said method comprising the steps of sigma-delta modulation of said generated arbitrary waveform, and pulse width modulation of the output signal of said sigma-delta modulator, introducing a minimum pulse width (pwmin) during said pulse width modulation.

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Dufort, et al., “Increasing the Performance of Arbitrary Waveform Generators Using Periodic Sigma-Delta Modulated Streams”, IEEE Transactions on Instrumentation and Measurement, vol. 49, No. 1, Feb. 2000, pp. 188-199.

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