公开(公告)号：EP3332468A1

公开(公告)日：2018-06-13

申请号：EP16728016

申请日：2016-06-09

申请人： BOSCH GMBH ROBERT

发明人： WIRNITZER BERND ,  GONDA MARTIN ,  LOHR GUENTER ,  MACK JUERGEN ,  KRUPEZEVIC DRAGAN

IPC分类号： H02J50/12 ,  H02M3/337

CPC分类号： H02J50/12 ,  H02M3/3376 ,  H02M2001/0006 ,  H02M2001/0032 ,  H02M2001/0058 ,  H02M2001/0064 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02B70/16

摘要： The invention relates to an induction charging device (12) and a corresponding method for inductively transmitting energy to an induction battery device (14), comprising at least one primary oscillating circuit (42) which has at least one charging coil (16) and comprising a control or regulating unit (48) for actuating the primary oscillating circuit (42) by means of an inverter circuit (32, 34). An excitation frequency (f
a ) of an inverter circuit (32, 34) output signal (54), which consist of half-waves (56a, 56b, 58a, 58b), substantially corresponds to a resonant frequency (f
R ) of the primary oscillating circuit (32, 34). The induction charging device according to the invention is characterized in that in order to reduce a charging current (I), the control or regulating unit (48) actuates the inverter circuit (32, 34) after an end-of-charge voltage (U
LT ) of the induction battery device (14) is reached such that the output signal (54) is periodically set to a high value (high) for at least one first half-wave (56a, 56b) and then immediately to a value (low) which is low compared to the high value (high) for an odd plurality of successive half-waves (58b).