Systems and methods for reducing electromagnetic interference using switching frequency jittering
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United States of America Patent
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Aug 11, 2020
Grant Date -
Sep 29, 2016
app pub date -
Mar 28, 2016
filing date -
Oct 25, 2011
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Abstract
System and method are provided for regulating a power converter. The system includes a signal processing component configured to receive a first input signal and a second input signal, process information associated with the first input signal and the second input signal, and output a drive signal to a switch based on at least information associated with the first input signal and the second input signal. The first input signal is associated with at least a feedback signal related to an output voltage of the power converter. The second input signal is associated with at least a primary current flowing through a primary winding of the power converter. The signal processing component is further configured to change a peak value of the primary current within a first predetermined range, and change the switching frequency of the power converter within a second predetermined range.
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