Bidirectional electronic switch and dimmer comprising a light emitting device to illuminate a photo-activated electronic device
US10812072B2 · kind B2 · utility
25Cited by
18References
14Claims
0Family size
Inventors
Key dates
| Filing date | Sep 12, 2019 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Sep 12, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A novel approach for the control of AC power uses power MOSFETs in a bidirectional switch subcircuit configuration having an optically coupled, electrically floating control circuit that self-biases the switches into the “on” state and uses an optically coupled control element to force the switches into the “off” state. The time constant of the control circuit is fast enough to allow phase control as well as on-off control. A plurality of subcircuits can be easily cascaded to provide improved performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.