LED decorative lamp
US11644190B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Mar 22, 2022 |
| Grant date | May 9, 2023 |
| Priority date | — |
| Expiry date | Mar 22, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/72
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A decorative lamp includes a base; at least three LED circuit boards, a plurality of LED lamp beads distributed on an outer surface of each LED circuit board; a main control board electrically connected with the LED circuit boards and having a controller configured to send a timing signal; a driving power electrically connected with the main control board and having a PWM driving circuit electrically connected with the LED circuit boards, for receiving the timing signal sent by the controller and outputting a PWM signal according to the received timing signal; and a hollow lampshade surrounding the LED circuit boards and the main control board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.