초록 ▼

A boost converter for converting an input voltage received at an input thereof into first and second output voltages provided at first and second outputs thereof, respectively, and a method of operating the boost converter. In one embodiment, the boost converter includes: (1) a first switching circu

A boost converter for converting an input voltage received at an input thereof into first and second output voltages provided at first and second outputs thereof, respectively, and a method of operating the boost converter. In one embodiment, the boost converter includes: (1) a first switching circuit coupled to a first rail of the input and having a first switch and a first capacitor coupled in parallel, (2) a second switching circuit coupled to a second rail of the input and having a second switch and a second capacitor coupled in parallel, (3) a contactor, coupled between the first and second switching circuits and the first and second rails, that is controllable to achieve alternative first and second states in which: (3a) in the first state, the first and second switching circuits are coupled in series across the source of AC power and (3b) in the second state, the first and second switching circuits are coupled in parallel across the source of AC power to reduce an overall loss associated with the first and second switches and (4) a boost inductor, coupled in series with first and second switching circuits, that provides a conductive path for the input DC voltage to flow through the first and second switching circuits to charge the first and second capacitors, respectively.

대표청구항 ▼

[ What is claimed is:] [1.] A boost converter for converting an input voltage received at an input thereof into first and second output voltages provided at first and second outputs thereof, respectively, comprising:a first switching circuit coupled to a first rail of said input and having a first s

[ What is claimed is:] [1.] A boost converter for converting an input voltage received at an input thereof into first and second output voltages provided at first and second outputs thereof, respectively, comprising:a first switching circuit coupled to a first rail of said input and having a first switch and a first capacitor coupled in parallel;a second switching circuit coupled to a second rail of said input and having a second switch and a second capacitor coupled in parallel;a contactor, coupled between said first and second switching circuits and said first and second rails, that is controllable to achieve alternative first and second states in which:in said first state, said first and second switching circuits are coupled in series across said first and second rails, andin said second state, said first and second switching circuits are coupled in parallel across said first and second rails to reduce an overall loss associated with said first and second switches; anda boost inductor, coupled in series with said first and second switching circuits, that provides a conductive path for said input voltage to flow through said first and second switching circuits to charge said first and second capacitors, respectively.