Emergency power supply device or uninterruptible power supply for a data processing system, has first and second power sources, the second of which, or backup, is a double layer capacitor

摘要

Emergency power supply device for a data processing system has first and second power sources and a control device in the consuming device or load. The second power source (7) produces the power that the first power source was producing if it fails. The second power source is a capacitor, especially a double layer or ultra capacitor.