Driver circuit for controlling a resonant converter
US7046049B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 9, 2003 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Jan 20, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In order to improve the efficiency of a driver circuit for controlling upper and lower switching means (T3, T4) for converting a direct voltage Ud into a clocked output voltage Ua for a resonant converter with a high-voltage section (HT) for controlling the upper switching means (T3) and a low-voltage section (NT) for controlling the lower switching means (T4), which switch the switching means (T3, T4) on alternately to one another, the switch-on phases of the switching means (T3, T4) being separated from one another by dead-time phases, there is provided a first circuit section which controls the duty cycle Δtein3 of the upper switching means (T3) as a function of the duty cycle Δtein4 of the lower switching means (T4), and receives control signals from the low-voltage section (NT) exclusively during the duty cycle Δtein4 of the lower switching means (T4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.