Circuit unit for lamp and lamp comprising the same
US12200834B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2020 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | Apr 29, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided are a circuit unit for a lamp and the lamp including the circuit unit. The circuit unit for the lamp may include: a first power stage receiving a first power signal from an Alternating Current (AC) power supply, performing an Alternating Current—Direct Current (AC-DC) conversion for the first power signal to generate a second power signal and performing a dimming signal conversion for the first power signal to generate a first dimming signal, and a second power stage connected with the first power stage to receive the second power signal output from the first power stage, herein, the second power stage adjusts the second power signal based on at least the first dimming signal, in this way a third power signal is generated, and the second power stage provides a light-emitting unit of the lamp with the third power signal to drive the light-emitting unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.