Patent ID: 7876583
Filing Date: 2011-01-25
Classification: H02M,Y02B

Abstract:
1. A flyback converter, comprising: a coupled inductor including a first winding, a second winding, and a third winding, wherein the first winding is coupled to an input voltage and the second winding is coupled to an output of the power converter; a switched element coupled to the second winding; a secondary control circuit coupled to the switched element and the second winding, the secondary control circuit coupled to switch the switched element in response to a difference between a desired output value and an actual output value to force a current in the third winding that is representative of the difference between the desired output value and the actual output value; a primary switch coupled to the first winding; and a primary control circuit coupled to the primary switch and the third winding, the primary control circuit coupled to switch the primary switch to regulate the output of the power converter in response to the forced current.