Voltage to pulse-width conversion circuit
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United States of America Patent
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-
Jan 2, 1990
Grant Date -
N/A
app pub date -
Mar 8, 1988
filing date -
Mar 9, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A voltage to pulse-width conversion circuit includes a counter which counts a reference frequency signal and produces a multi-bit digital value; a digital/analog converter which converts the digital value into an analog signal; and a voltage comparator which compares an output of the digital/analog converter with a control signal and produces a pulse width modulated output signal which has a predetermined duty cycle ratio.
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