Digital driver with RC tuned transition control
US8373451B1 · kind B1 · utility
9Cited by
1References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 22, 2010 |
| Grant date | Feb 12, 2013 |
| Priority date | — |
| Expiry date | Apr 11, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Improved digital driver with transition time control of an output stage output transistor of the digital driver. A predriver circuit has a resistor that forms an RC time constant with a feedback capacitor of the output transistor. The RC time constant is adjusted to control corner resolution of the output transistor in output switching. The RC time constant can be controlled by a digitally-controlled variable capacitor. Additionally, a delay may be introduced in the turning on of the output transistor as compared with the turn off time to reduce simultaneous conduction or shoot-through current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.