Patent ID: 8199540

Claim:
A power converter comprising: a main switch element; a first output circuit unit, operated with respect to the main switch element, for providing a first boost output voltage, comprising: a first inductive element, connected to an input node; a first switch element, wherein the first inductive element is connected between the input node and the first switch element; and a first capacitive element, connected between the first switch element and a ground, for providing the first boost output voltage; a second output circuit unit, operated with respect to the main switch element, for providing a second boost output voltage, comprising: a second inductive element, connected between the main switch element and the first capacitive element; a second switch element, connected to a common node of the second inductive element and the main switch element; and a second capacitive element, connecting the second switch element to a first node, for providing the second boost output voltage; and an assistant switch element, connected between the first inductive element and the common node of the second inductive element and the main switch element.