| 摘要 |
In a charging device (100) for charging a battery pack (190), comprising a control circuit (120) for a switching power unit transformer (150) associated with the loading device (100), said transformer having at least one primary winding (152) switchable by a power switch (158), and at least one first secondary winding (154) for generating an electrical output voltage (UOUT) for charging the battery pack (190), wherein the output voltage (UOUT) has a first amplitude which is predefinable by a control unit (110) and adjustable by a first voltage limiting control loop (160), the transformer (150) has at least one second secondary winding (156) for generating at least one electrical auxiliary voltage (UH) having a second amplitude which is predefinable by the control unit (110) and adjustable by a second voltage limiting control loop (180) so as to at least reduce power supply associated with the operation of the control circuit (120) from the primary winding (152) to the secondary windings (154, 156) in standby mode of the control circuit (120). |
