Patent ID: 7852640

Claim:
A system for regulating a power converter, the system comprising: a signal processing component configured to receive a voltage, to process information associated with the voltage, and to determine a signal based on at least information associated with the voltage, and to send the signal to a switch for a power converter, the switch being regulated based on at least information associated with the signal; wherein the signal processing component is further configured to: if the voltage is higher than a first threshold, determine the signal to be associated a first mode; if the voltage is lower than a second threshold, determine the signal to be associated with a second mode; wherein the signal processing component is further configured to: process information associated with the voltage, a third threshold, and a fourth threshold, the third threshold and the fourth threshold being different; determine a modulation frequency based on at least information associated with the first voltage, the third threshold, and the fourth threshold; wherein: if the signal is associated with the first mode, the signal processing component causes the switch to be modulated at the modulation frequency; if the signal is associated with the second mode, the signal processing component causes the switch not to be modulated.