Patent · US Expired

Standby circuit for an electrical device

US7444530B2 · kind B2 · utility

29Cited by

13References

19Claims

0Family size

Assignee

NXP B.V. · NL

Inventors

Carsten Deppe · Aachen, DE
Peter Luerkens · Aachen, DE
Thomas Duerbaum · Eschweiler, DE
Matthias Wendt · Neu-Anspach, DE
Christoph Loef · Aachen, DE
Georg Sauerlaender · Aachen, DE

Key dates

Filing date	Feb 6, 2002
Grant date	Oct 28, 2008
Priority date	—
Expiry date	Apr 22, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH02J9/005
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a standby circuit, an electrical device with a standby circuit, a method for the control of the electrical device and a power supply assembly. Whereas the power supply unit and the control electronics are in permanent operation when conventional devices are in the standby mode and consequently have a high power consumption, the invention proposes a solution for saving energy while retaining convenience of operation by which the power supply unit is switched off in the standby mode. A standby circuit, preferably fed by an energy buffer element, remains active in the standby mode and monitors signal inputs for activation events. When an activation event occurs, the standby circuit switches on the power supply unit.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.