Apparatus for controlling power consumption in lighting loads and the like
US4410839A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 2, 1981 |
| Grant date | Oct 18, 1983 |
| Priority date | — |
| Expiry date | Jul 2, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/735
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Apparatus for interrupting power to a plurality of parallel loads such as lighting circuits and selectively reapplying power to the loads includes a first switch serially interconnecting the loads to a power line. Second switch circuits are serially connected with each load whereby interruption of power to a load for a predetermined period of time opens the switch circuits. The switch circuits include bidirectional conduction devices such as triacs which require a gating signal before becoming conductive. A resistor-capacitor circuit provides a gating signal to the triac to maintain conduction thereof for the predetermined period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.