Auxiliary output driver
US6952119B2 · kind B2 · utility
0Cited by
9References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 28, 2004 |
| Grant date | Oct 4, 2005 |
| Priority date | — |
| Expiry date | Jan 28, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/00384
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A BiCMOS auxiliary output driver is provided to maintain output logic signal levels when integrated circuit chip power supply voltage is outside its nominal range. When the power supply voltage level is within design tolerance for a MOSFET output driver stage, the auxiliary output driver is off; when below design tolerance, the auxiliary output driver is turned on. Driver stage output pad signal level is maintained at a desired state level by the auxiliary output driver whenever the power supply slips below its design tolerance range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.