Method and apparatus for providing hot plugging protection for laser optoelectronic devices
US6091750A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1998 |
| Grant date | Jul 18, 2000 |
| Priority date | — |
| Expiry date | Mar 25, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/06825
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method and apparatus for providing hot plugging protection for a laser optoelectronic device in a laser driver and fault detection circuit are provided. The power supply voltage is compared with a defined threshold potential utilizing a power on reset (POR) circuit. Responsive to detecting a power supply voltage potential below the defined threshold potential, an output control signal is generated. A current interrupt laser driver control signal is generated responsive to the output control signal to interrupt the laser driver current. A clear fault control signal is simultaneously generated responsive to the output control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.