Digital-to-analog converter using pulse-width modulation

Coded data generation or conversion – Analog to or from digital conversion – Digital to analog conversion

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307265, 332109, H03M 182

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active

051481685

ABSTRACT:
A digital-to-analog converter utilizing a PWM system for converting input digital data to PWM signals and finally to an analog signal divides the sampling period of the input digital data into an even number of sampling periods and produces PWM signals with equal pulse widths corresponding to the input digital data each divided sampling period, whereby a simple structure is provided to reduce harmonic distortion and obtain a high quality analog signal.

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patent: 5023615 (1991-06-01), Yamada et al.
The Engineering Staff of Analog Devices, Inc., Analog-Digital Conversion Handbook, 1986, pp. 186-188.

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