Resonant converter with phase delay control
US6807070B2 · kind B2 · utility
48Cited by
20References
20Claims
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Assignee
Inventor
Key dates
| Filing date | Dec 10, 2002 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Dec 10, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A phase delay control for a power converter operates with a phase locked loop and current sense feedback to provide improved control stability and dynamic output range. The phase lock loop includes a voltage controlled oscillator that is controlled based on an error signal derived from a phase of the power converter output. The error signal applied to the voltage controlled oscillator produces a shift in switching frequency for the converter to drive the error to zero. The power converter includes an LCC resonant circuit to manipulate resonant electrical energy to improve switching speed and power density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.