Pulse width modulation circuit and method therefor
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United States of America Patent
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Issued Date -
Nov 15, 2007
app pub date -
May 10, 2006
filing date -
May 10, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A pulse width modulation circuit comprising an oscillator, a ramp generator and a comparator where the offset level of the ramp generated by the ramp generator varies and where the value of the voltage supplied to the comparator is constant is described herein. By varying the offset level of the ramp, it is possible to modulate the width of the pulse of the output signal of the circuit.
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