Brightness control system for decorative light strings
US9781796B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2016 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Mar 31, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B47/19
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Apparatus and associated methods relate to providing a constant-brightness lighting power to one or more interconnected light strings. A light string power controller draws operating power from a power source that has a variable voltage. The light string power controller supplies constant-brightness lighting power to the one or more interconnected light strings connected to a light-string connector. The constant brightness operating power is both independent of the variable voltage of the power source and independent of a number, up to a predetermined maximum number, of the one or more interconnected light strings connected to the light-string connector. Additional light strings can be connected to the one or more interconnected light strings without affecting a brightness of the one or more interconnected light strings. The brightness of the one or more interconnected light strings is similarly unaffected by voltage variations of the power source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.