Systems and methods for reducing electromagnetic interference using switching frequency jittering

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United States of America Patent

PATENT NO 9331567
SERIAL NO

13323458

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Abstract

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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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Patent Owner(s)

Patent OwnerAddress
ON-BRIGHT ELECTRONICS (SHANGHAI) CO LTDBLDG 3 BUSINESS CENTER 168 HUA TUO ROAD ZHANGJIANG HI-TECH PARK SHANGHAI 201203

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fang, Lieyi Shanghai, CN 341 10839
Lin, Yuan Shanghai, CN 233 3409

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