Pulse width adjusting circuit
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United States of America Patent
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Nov 20, 2012
Grant Date -
Oct 28, 2010
app pub date -
Jun 1, 2008
filing date -
Jun 25, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A rising edge or a falling edge is finely adjusted, or a dead time and a period are adjusted with high accuracy. A waveform processing circuit includes: an integration circuit 11 receiving a rectangular or substantially-rectangular pulse and outputting a gradually increasing or decreasing signal obtained by integrating the pulse signal; a reference signal output circuit 12 outputting a constant value or a varying value as a reference signal; and a comparison circuit 13 comparing the output of the integration circuit with the output of the reference signal output circuit and outputting a pulse rising or falling at a timing when the difference between the outputs varies.
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