Amplifier apparatus for an output stage of a laser driver circuit
US6650183B2 · kind B2 · utility
0Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 11, 2002 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Apr 11, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/04126
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Known differential pair amplifier circuits can suffer from transistor saturation resulting in a reduction in switching speed. An alternative to the differential pair amplifier circuit is a common-emitter configuration, but the common-emitter configuration lacks differential operability and results in ground bounce. An amplifier circuit is provided for an output stage of a driver circuit comprising a pair of common emitter circuits cross-coupled by a pair of transistors. Slow operation is therefore overcome while providing a differential output signal in response to a differential input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.