Constant on time controller
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United States of America Patent
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Jan 10, 2017
Grant Date -
Jul 30, 2015
app pub date -
Apr 17, 2014
filing date -
Jan 30, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides a constant on time controller packaged in one single package for controlling a buck converting circuit to convert an input voltage into an output voltage. The constant on time controller includes an input voltage detecting circuit, an on-time determining circuit and a driving circuit. The input voltage detecting circuit receives a bootstrap voltage to generate an input voltage detecting signal indicative of the input voltage. The on-time determining circuit receives the input voltage detecting signal and generates an on-time signal in response to the input voltage detecting signal and the output voltage. The driving circuit controls the buck converting circuit according to the n-time signal.
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