Method and apparatus for dynamically altering operation of a converter device to improve conversion efficiency
US6351396B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Mar 4, 2000 |
| Grant date | Feb 26, 2002 |
| Priority date | — |
| Expiry date | Mar 4, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for dynamically adjusting operation of a converter device to improve conversion efficiency. The converter device includes an inverter and a synchronous rectifier, and is driven by a plurality of drive signals having a duty cycle. The method comprises the steps of: (a) varying timing of a first drive signal a first amount; (b) observing the duty cycle of the conversion device; (c) further varying the first drive signal appropriately to alter the duty cycle toward an extremum; and (d) continuing to operate the converter device with the duty cycle proximate the extremum. In its most preferred embodiment, the method of the present invention includes the further step of: (e) periodically effecting steps (a)-(c) varying a drive signal other than the first drive signal. The comprises: (a) a drive varying means for varying timing of selected individual drive signals of the plurality of drive signals; and (b) a measuring means connected with the drive varying means for measuring the duty cycle. In its most preferred embodiment, the apparatus further comprises: (c) a control means for controlling the drive varying means. The control means is connected with the measurin…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.