Patent ID: 8058743

Claim:
An electrical system for use in a vehicle, the electrical system comprising: a transformer having a first winding and a second winding; a boost converter comprising: an input node, an output node, a first reference node, and a second reference node, wherein the first winding of the transformer is coupled between the input node and the first reference node; a first switch coupled between the first reference node and the second reference node; and a first diode coupled between the first reference node and the output node; a first energy source coupled between the input node and the second reference node, the first energy source having a first voltage; a first electrical load coupled between the output node and the second reference node; a bi-directional voltage converter having an input and an output, wherein the input is coupled to the second winding; and a second electrical load coupled to the output of the bi-directional voltage converter, wherein the first energy source provides energy to the first electrical load and the second electrical load when the first switch is modulated.