Method for estimating the duration of the interruptions in the supply from the electric mains in an electric apparatus having an electronic control
US6593766B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 20, 2001 |
| Grant date | Jul 15, 2003 |
| Priority date | — |
| Expiry date | Feb 20, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D29/008
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for estimating the duration of the interruptions in the supply from the electric mains in an electric appliance having an electronic control, in particular a household appliance, includes the steps of (a) on the occasion of an interruption of the supply voltage of the apparatus, measuring and storing the value of at least one quantity that is characteristic of the operating status of the apparatus; (b) on the occasion of the restoration of the supply voltage, measuring the current value of the at least one characteristic quantity; (c) comparing the stored value and the current value of the at least one characteristic quantity; and (d) estimating, on the basis of the comparison, the duration of the interruption of the supply voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.