Power stealing control devices
US7476988B2 · kind B2 · utility
198Cited by
13References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2005 |
| Grant date | Jan 13, 2009 |
| Priority date | — |
| Expiry date | Jan 4, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B90/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power stealing system having a switch and a circuit that takes power from equipment to operate control electronics. The system may be such that power stealing occurs while the equipment is not powered to avoid disruption or false signals in the electronics or equipment. The circuit may convey taken power to a storage device. The electronics may be powered by the storage device. The storage device may have a capacitor, a rechargeable battery, a non-chargeable battery, a solar cell, fuel cell, line power, and/or the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.