Patent ID: 7629779
Filing Date: 2009-12-08
Classification: H02M

Abstract:
1. An apparatus, comprising: a converter circuit having N+1 switch circuits, the converter circuit being configured to receive an input voltage and to provide N output voltages, where N is three or more; and a control circuit to selectively provide control signals to the N+1 switch circuits at time intervals in accordance with the N output voltages, wherein the N output voltages include at least two different types of outputs, wherein two switch circuits are utilized to produce a first output voltage of the N output voltages and wherein only one additional switch circuit is provided for each additional output voltage of the N output voltages, wherein the converter circuit comprises: a first switch circuit coupled to the input voltage; a first voltage converter circuit coupled to the first switch circuit, the first voltage converter circuit configured to provide a first type of output voltage; a second switch circuit and a third switch circuit coupled in series between the input voltage and the ground potential; and an LC circuit coupled to a junction of the second and third switch circuits, the LC circuit configured to provide a second type of output voltage, different from the first type of output voltage.