Integrated FET and driver for use in a synchronous dc-dc conversion circuit
US6603291B2 · kind B2 · utility
21Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2002 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Feb 4, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An integrated driver circuit includes a low side component and a synchronous dc voltage converter circuit. A sync FET (8) is controlled by a driver (32) powered between high and low voltage power connections (134, 138). A timing circuit (150) controls the driver circuit in accordance with a signal on a control input. The driver circuit (32) is isolated from the timing circuit (150), for example by a level shift circuit (136) and the low voltage power connection (138) of the driver circuit is directly connected to the source (108) of the sync FET (8). This arrangement is intended to reduce transient voltage effects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.