Patent ID: 8415890

Claim:
A power converter, comprising: an energy transfer element coupled to receive a rectified voltage having a non-blocked portion and a blocked portion, wherein an amount of the blocked portion corresponds to a phase angle; a switch coupled to the energy transfer element; a controller coupled to control switching of the switch to regulate an output current of the power converter in response to a plurality of signals, wherein the plurality of signals includes a peak input voltage signal and a feedback signal, the peak input voltage signal representative of a peak input voltage of the power converter and the feedback signal representative of the output voltage of the power converter; and a compensation circuit coupled to output a compensation signal to adjust at least one of the plurality of signals in response to the phase angle exceeding a phase angle threshold, and wherein the compensation circuit does not output the compensation signal and does not adjust the at least one of the plurality of signals when the phase angle is less than the phase angle threshold.