Power demand control
US5397926A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1992 |
| Grant date | Mar 14, 1995 |
| Priority date | — |
| Expiry date | Sep 30, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S40/121
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system and a method for saving power of an output variable apparatus such as an inverter air conditioner. A power demand controlling system includes: a power demand controlling unit for detecting and monitoring constantly an electric current flowing through the domestic lines; and power save controlling unit, connected to the domestic power lines and the output variable apparatus, for sending a power save signal to the apparatus, based on the current monitored by the power demand controlling unit, so that an output of the apparatus is reduced to a minimum value and after the power save signal is cancelled the output is returned gradually and stepwise to an original value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.