Timing circuit for synchronous DC/DC control to reduce synchronous rectifier body diode conduction
US6861826B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 31, 2003 |
| Grant date | Mar 1, 2005 |
| Priority date | — |
| Expiry date | Mar 31, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control device and method for synchronizing activation and deactivation of a high-side switch (102) and a low-side switch (104) in a converter including an input (421) for receiving a reference signal from a signal generator and circuitry (400) coupled to the input and responsive to the reference signal for providing a control signal (422) for the high-side switch (102) having a constant pulse width corresponding the pulse width of the reference signal, and for providing a control signal (423) for the low-side (104) switch having a pulse width which is modulated on both the trailing edge and leading edge thereof for providing synchronization between activation and deactivation of the high-side switch (102) and the low-side switch (104) via the respective control signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.