| 摘要 |
A charger (LNT) for a battery-fed electrical/electronic device (HAN), with an electrically isolating transformer (TRA), which can be fed at its primary circuit and of which the secondary circuit features a converter/rectifier (GLR) to supply a charge voltage for the battery (AKU) of the device, where charger and device can be connected via a plug-in electrical interface (SSS), and. when the connection is established to the plug-in interface (SSS) a switch-on signal (s<SUB>e</SUB>) can be derived from the residual voltage of the battery (AKU), which can be forwarded via an isolating interface (ISS) from the secondary circuit (SES) to the primary circuit (PRS) to activate the charger (LNT).
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