Dimmer adaptable to either two or three active wires
US7609007B1 · kind B1 · utility
29Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 26, 2008 |
| Grant date | Oct 27, 2009 |
| Priority date | — |
| Expiry date | Feb 26, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B39/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A dimmer (42) adaptable to either two (H, DH) or three (H, N, DH) active wires includes a first full-wave rectifier (D1, D2, D3, D4) across an AC power hot (H) terminal and a dimmer hot (DH) terminal and a second full-wave rectifier (D1, D4, D5, D6) across the AC power hot (H) terminal and an AC power neutral (N) terminal. The dimmer (42) operates in a two-wire configuration by drawing power through a load (13) when a control circuit (422) is not conducting or in a three-wire configuration, when the AC power neutral (N) terminal is connected, by drawing power from AC power hot (H) and AC power neutral (N) terminals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.