Two terminal controller
USRE35220E · kind E · reissue
Assignee
Inventor
Key dates
| Filing date | Jul 8, 1993 |
| Grant date | Apr 30, 1996 |
| Priority date | — |
| Expiry date | Jul 8, 2013 |
Classification
- Technology area (CPC —)General
Abstract
A two-terminal, alternating current power control device connected in an electrical path between a load and a remote switch, comprising a current switching device, a controlling device and a direct current power supply device. The current switching device provides a low impedance electrical path in response to the application of triggering signals thereto, and provides a high impedance electrical path in the absence of the triggering signals. A control circuit is provided for applying triggering signals to the current switching device as the proper time in the AC cycle, and is responsive to a momentary interruption in the applied AC voltage so as to effect change in the power intensity or timed duration of power delivered to the load. A remote switch in the electrical path can be the source of a momentary power interruption. The entire power control device can be constructed to directly attach to the electrical screw shell base of a gas discharge lamp, so the lamp and power control device can be mounted into the normal accommodating electrical fixture without the need for an intermediary fixture or additional electrical wiring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.