Dual-output boost converter having enhanced input operating range
US5894214A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 20, 1997 |
| Grant date | Apr 13, 1999 |
| Priority date | — |
| Expiry date | Nov 20, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P80/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
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 thro…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.