| 20110242862 | SOFT START CIRCUIT FOR POWER FACTOR CORRECTION NETWORK - A soft start circuit for a power factor correction circuit. In one embodiment, the soft start circuit controls an input to a power factor correction pre-regulator chip to allow the output voltage to be set initially to a value lower than the desired nominal output voltage of the power factor correction circuit. Once stabilized, the input to the power factor correction pre-regulator chip is changed to increase the output voltage to the desired nominal output voltage of the power factor correction, thereby avoiding any significant overshoot of the desired nominal output. | 10-06-2011 |
