Digital-to-analog converter using pulse-width modulation
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United States of America Patent
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Sep 15, 1992
Grant Date -
N/A
app pub date -
Apr 30, 1991
filing date -
May 16, 1990
priority date (Note) -
Expired
status (Latency Note)
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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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