Patent ID: 8537573

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, 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; wherein the signal processing component is further configured to: if the voltage is higher than a first threshold, determine the signal to be associated with a first mode; and 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; and determine a frequency based on at least information associated with the voltage, the third threshold, and the fourth threshold; wherein the signal processing component is further configured to: if the signal is associated with the first mode, cause the switch to be turned on and off by the signal corresponding to the frequency; and if the signal is associated with the second mode, cause the switch to remain to be turned off.