Hybrid H-bridge and CML driver
US8797064B1 · kind B1 · utility
1Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2013 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Apr 26, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/018521
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a hybrid output buffer having both an H-bridge mode and a CML mode of operation includes a plurality of transistor switches arranged between an upper rail and a bottom rail. A first pair of the transistor switches couples between the upper rail and respective output nodes. A pair of resistors couples between the output nodes and a central node. During H-bridge mode, the hybrid output buffer controls a potential of the upper rail responsive to a feedback signal proportional to a difference between a potential of the central node and a common-mode voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.