| 摘要 |
<p>Emergency power source for use with a switching supply supplied from the mains, and switching supply for use with an emergency power source. The emergency power source comprises at least one battery, a converting device which can convert the battery voltage to the voltage to be provided to a DC voltage output by the emergency power source, drive means for driving the converting device, and means for charging the at least one battery, the DC voltage output being designed to be detachably connected to the switching supply and the means for charging the at least one battery being part of the converting device and in operation receiving DC supply voltage from the switching supply. The switching supply comprises an input rectifier, a capacitor connected in parallel therewith and a DC-DC-converter and further comprises a connector with at least two connecting members between which prevails the voltage prevailing across said capacitor.</p> |
