Dimmer triggering circuit, dimmer system and dimmable device
US8212494B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 26, 2008 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Jan 31, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a dimmer triggering circuit (12) for triggering a dimmer in an alternating current network. The dimmer has a voltage-level detector (15), and a bipolar current source circuit (18). The voltage-level detector (15) detects whether an absolute value of an input voltage of the dimmer triggering circuit is below a threshold value. The bipolar current source circuit (18) provides a current if the voltage detected by the voltage-level detector (15) is below the threshold value. If the voltage detected is not below the threshold value, the bipolar current source circuit is deactivated. The dimmer triggering circuit (12), in operation, dissipates an average power less than 100 mW.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.