Circuit arrangement and signalling light provided with the circuit arrangement
US6147458A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jun 29, 1999 |
| Grant date | Nov 14, 2000 |
| Priority date | — |
| Expiry date | Jun 29, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S315/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit arrangement for operating a semiconductor light source includes connection terminals for connecting a control unit, an input filter, a converter comprising a control circuit, output terminals for connecting the semiconductor light source, an apparatus CM for removing a leakage current occurring in the control unit in the non-conducting state, and a self-regulating circuit for deactivating the apparatus CM. The circuit arrangement is also provided with a detection circuit for detecting an incorrect functioning of the converter or the semiconductor light source. For this purpose, preferably a minimum voltage and a maximum voltage are detected at the output terminals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.