Dimmer for resistive or capacitive loads
US7119497B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2004 |
| Grant date | Oct 10, 2006 |
| Priority date | — |
| Expiry date | Sep 3, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power dimmer for an A.C. load comprising, between two terminals, two one-way switches connected in anti-parallel and controllable to be turned off and turned on, each switch being controlled by a driver circuit setting the turn-off times of each of the switches with respect to a reference value, each driver circuit being associated with a supply circuit comprising a voltage storage element in series with a one-way rectifying element, all in parallel with a voltage-limiting element, the two supply circuits being connected to each other by a capacitor and the respective supply voltages of the driver circuits being sampled across the respective capacitors of each supply circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.