Programmable current output buffer
US7215148B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2004 |
| Grant date | May 8, 2007 |
| Priority date | — |
| Expiry date | Jun 2, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45681
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A buffer for a programmable device has source current circuitry, sink current circuitry, one or more input nodes, one or more output nodes, and switch circuitry. The source current circuitry can be programmably controlled to generate a plurality of different total source currents, and the sink current circuitry can be programmably controlled to generate a plurality of different total sink currents. The one or more input nodes can receive one or more input signals, and the one or more output nodes can present one or more output signals. The switch circuitry can selectively apply at least one of a total source current and a total sink current to the one or more output nodes based on the one or more input signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.