Power supply system for a semiconductor light source
US4238707A · kind A · utility
18Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1979 |
| Grant date | Dec 9, 1980 |
| Priority date | — |
| Expiry date | Jan 10, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a power supply system for a semiconductor light source of which the power is regulated in the steady state by a regulating loop comprising an electronic switching circuit controlled by a signal characteristic of the power emitted by the laser which closes the regulating loop when the output power has reached, a threshold power, a ramp generator supplying a ramp of current to the laser solely from the instant when the feed voltage is established for reaching the threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.